Arthur's Keys

Weapons & Equipment
Among various possessions of many kinds, Arthur's most notable possessions are his Gate Keys used for summoning various celestial spirits, several rings that can produce many different techniques, two Legendary Gems, Emerald and Topaz, used for healing and mana regeneration, and his whip, Fleuve d'Étoiles, originating from the Celestial Spirit World itself made purely out of flowing water and/or light {| width="100%" class="collapsible collapsed" ! Celestial Spirit Gate Keys are magical keys that can be used to summon Celestial Spirits, beings from another dimension that can be used to fight their contractor's opponents, to do chores or just to hang around with. There are numerous different types of Celestial Spirit Gate Keys, but the most known ones are the Silver Keys and the Gold Keys. The Silver Keys are common keys that can be bought from stores while the Gold Keys are very rare keys that can be used to summon the Zodiac Spirits.

Golden Keys
Golden Keys, also known as Zodiac Keys are a group of twelve unique Celestial Spirit Gate Keys Celestial Spirit Mages use to summon spirits. They are the rarest and most valuable keys a Celestial Spirit Mage can possess. Each one has a unique key design and every spirit, regardless its strength, is counted as one unit. Currently, Arthur has a contract with five Golden-type Celestial Spirits. Every one of them is able to freely enter the Human World with their own magical rserves, but rarely do so.
 * Gate of the Golden Bull Key (金牛の鍵, Kingyū no Kagi): The Gate of the Golden Bull Key is one of the famous twelve Golden Zodiac Keys, this one in particular represents the Golden Bull; Taurus. The key is described to be a golden key with the sign of the Bull, representing the constellation itself, a circle with two horns sprouting on both sides, stamped on its bow. A bull's skull is engraved on the base of the bow with two black horns erupting from the top of the skull, surrounding a white elliptical-shaped clearing that bears the crest of the Golden Bull. The blade of the key is designed similar to that of a Labrys axe, each blade having the Bull's crest embedded. The tip of the blade is pointy and resembles a drill. A Celestial Spirit Mage can summon the Golden Bull by chanting "Open, Gate of the Golden Bull!" while holding the key in front of them. As a result, miniature orbs erupt from the tip of the blade, forming Taurus while doing so. Taurus appears to be a young man in his twenties with long black hair and muscular body, wearing a pair of black pants and wielding a long whip. The most unusual feature about him is a pair of bull horns on his head. Taurus is able to use his whip in order to land devastating blows upon his foes or can transform it into a huge, double-sided axe called Labrys, capable of absorbing elements from his surroundings in order to land more powerful blows.
 * Gate of the Twins Key (の鍵 双, Futago no kagi): The Gate of the Twins Key is one of the famous twelve Golden Zodiac Keys, this one in particular represents the Twins, Gemini. The key is depicted to be an ordinary golden key with the crest of the Twins, a symbol similar to two I's merged, stamped on its bow. The bow of the key is sculpted with two heads, each one of them representing a twin, Gemi and Mini, two circular faces with two dots for eyes and boomerang-shaped mouths, one in a smile while the other one in a frown. The sides of the bow feature an arm from each of the twins protruding. The blade of the key is depicted to be a harph, representing Harmony between the two. A Celestial Spirit Mage is capable of summoning the Twins by holding the key in front of them while chanting "Open, Gate of the Twins!". As a result, numerous golden spheres erupt from the tip of the key, forming two figures, Gemi and Mini. Gemi is a young man, roughly 20 years old wearing goth-like outfits and is specializing in Darkness Magic, while Mini is a girl, around the same age, always wearing cheerful colours and is specializing in Light Magic. The two are able to perform a unison raid, combining their magics in every aspect for powerful blows capable of destroying anything in their path.
 * Gate of the Maiden Key (少女の鍵, Otome no Kagi): The Gate of the Maiden Key is one of the famous twelve Zodiac Gate Keys, this one in particular represents the Maiden; Virgo. The key is depicted to be an ordinary golden key with the crest of the Maiden, a symbol reminiscent to the letters M and J combined together, stamped on its bow. Similar to the other keys, the centre of the bow is white, stamped with the crest of the Maiden, coloured in purple. Surrounding the heart-shaped centre on either side are simple curves, spiralling on the top and bottom. The blade's end is shaped like a heart. The key can be used by Celestial Spirit Mages in order to summon the Maiden by chanting "Open, Gate of the Maiden!" and holding the key in front of themselves. As a result, numerous spheres will erupt from the tip of the key, forming the Maiden while doing so. Virgo looks like a woman in her mid-thirties wearing a rich black dress with gold embroidery. Her pale skin goes perfectly with her silver hair. The most notable feature about Virgo is a mask that covers the top part of her face, starting from upper nose and ending on the forehead. She appears to have a golden candle-holder in her right hand that can be used as a melee weapon. Virgo specializes in Illusion Magic, but is a proficient user of Darkness Magic as well. She is shown to be quite a feminist, stating that many women are stronger and more practical than men.
 * Gate of the Lion Key (獅子の鍵, Shishi no Kagi): The Gate of the Lion Key is one of the famous twelve Zodiac Gate Keys, this one in particular represents the Lion, Leo. The key is depicted to be an ordinary golden key with the crest of the Lion, a small circle with a "tail" sprouting out of the top and curling towards the left, stamped on its bow. The bow of the key is sculpted similar to a lion's head, with the face on the bow's base, complete with two fangs facing downward. The centre of the bow is a white arc with the crest of the Lion, coloured in dark orange, and surrounded by the lion's "mane". The end of the key's blade is similar to a lion's tail with a crescent moon at the tip. A Celestial Spirit Mage is able to summon Leo by putting the key in front of him and chanting "Open, Gate of the Lion!". As a result, many golden orbs will erupt from the tip of the key, forming Leo while doing so. Leo's attire consists of an elegant dark suit, with the jacket left unbuttoned and the loose pants held up by a light coloured belt, over a lighter shirt with a plain red tie around the neck, plus dark shoes. His most notable feature are the cat-like ears sprouting from his brown hair. Leo specializes in Light Magic, as well as Regulus and is a proficient melee combatant.
 * Gate of the Ram Key  (牡羊の鍵, Ohitsuji no Kagi): The Gate of the Ram Key is one of the twelve famous Zodiac Gate Keys, this one in particular represents the Ram; Aries. The key is depicted to be an ordinary golden key with the crest of the Ram, a symbol reminiscent of a ram's head with horns sprouting out of the top, stamped on its bow; the top of the key sculpted to look similar to a ram's head with horns sprouting out of either side. The centre of the bow is a white heart stamped with the crest of the Ram, coloured pink. The blade of the key's design seems to be derived from a ram's curled horns, with the very bottom appearing to be a hoof. While in possession of this key, a Celestial Spirit Mage is able to summon the Ram, Aries, by reciting, "Open the Gate of the Ram!" and holding the key in front of them. As a result, numerous glowing orbs erupt from the tip of the blade, forming a young girl dressed in wool clothes in front of the mage. Aries specializes in Wool Magic and Fire Magic. Arthur has acquired his key as a reward for a quest he did a year after he has joined Koma Inu. Even though Aries is fairly new, Arthur and herself get along well and have already formed a strong bond.
 * Gate of the Archer Key (射手の鍵, Ite no Kagi): The Gate of the Archer Key is one of the twelve Zodiac Gate keys used by Celestial Spirit Mages to summon the Archer, Sagittarius. In the Manga, the key is depicted to be an ordinary golden key with the crest of the Archer, an arrow crossed with a line near the triangular tail, stamped on its bow. The bow of the key is circular with a white circle in the middle, stamped with the crest of the Archer, colored in green while the handle and blade are designed to look like an arrow. While in possession of the key, a Celestial Spirit Mage may be able to summon the Archer Sagittarius by reciting the quote, "Open the Gate of the Archer! Sagittarius!". This summons Sagittarius, a fair-skinned man with horse legs, carrying a bow with a quiver of arrows strapped on his back. Sagittarius is an proficient archer, capable of hitting pretty much anything he can see.
 * Gate of the Heavenly Scales Key (天鱗の鍵, Tenrin no Kagi): The Gate of the Heavenly Scales Key is one of the twelve Zodiac Gate keys used by Celestial Spirit Mages to summon the Heavenly Scales, Libra. Libra's key is a gold key with a very decorative bow. The center of the bow features the crest of the heavenly scales. The end of the key's blade appears to be a thicker variation of the symbol, also resembling a horseshoe. The derivative of the design of gleaming circles on the sides of the bow and the top of the handle appear to be the pans of scales, which is what Libra utilizes in combat. While in possession of the key, a Celestial Spirit Mage may be able to summon the Heavenly Scales Libra by reciting the quote, "Open the Gate of the Heavenly Scales! Libra!". This summons Libra, who is able to use Gravity Change, allowing her to alter the gravity surrounding her target(s).

Crystal Keys
Crystal Keys are the third type of Celestial Spirit Gate Keys, alongside the famous Golden and Silver Gate Keys. They are light blue and made of rough quartz crystal. In terms of rarity, one could say that they're not commonly found like Silver ones, but are not as rare as Golden Keys. So far, Arthur hasn't met another Celestial Spirit Mage with crystal keys, probably due their rarity. Each key and the its spirit is counted as a unit. Currently, he possesses seven pure crystal gate keys and one Hybrid-Type crystal gate key which is fused with a small part of Topaz, making it unique. Most of the spirits (every one excluding Charta) are able to enter the human world freely, without the need of being summoned.
 * Gate of the Sword (剣の鍵, Ken no kagi): The Gate of the Sword Key is a crystal-type key used by Celestial Spirit Mages to summon the Sword, Gladius. The four-inch long key is depicted to be a regular crystal key designed like an upside-down dual-edged sword, the hilt being its bow and the blade being the rest of the sword. Key wards rise from the edge of the sword, resembling two sharp-edged triangles with little engravings of stars on them. As mentioned, the key summons Gladius with the incantation, "Open, Gate of the Sword!". Gladius is a stubborn and very protective warrior spirit that mostly uses melee combat techniques. He is dressed in a battle kimono and has a katana strapped to his back. He refers to the katana as Kenyosu. Alongside his outstanding swordsmanship skills, Gladius is able to alter gravity into his favour, making objects levitate as well to push/pull the target towards/away from him. In addition, he can use Kenyosu to preform powerful attacks by coating the blade and releasing the energy in many forms.
 * Gate of the Charm (愛の鍵, Ai no kagi): The Gate of the Charm Key is a crystal-type key used by Celestial Spirit Mages in order to summon the Charm, Puella. The three-and-a-half-inch long key is described as a regular crystal-type key, designed in an unusual matter. The bow is an elliptical shape with a little cherry-blossom engraving on it, alongside a pair of angelic wings at its sides, while the blade seems to be spiral, the tip of it representing a heart half the size of the elliptical bow. As stated before, with the incantation, "Open, Gate of the Charm!", the Celestial Spirit Wizard summons Puella, a young blonde girl, wearing her long hair in twin pig-tails, dressed in a short white-and-pink dress, accompanied by a large pink umbrella and twin tessen fans that she uses as her main weapon. She is a master of Love Magic that allows her to conjure and manipulate coloured heart-shaped bubbles in order to create an effect that can be used for both, offensive and defensive purposes. She is very confident in her sexual-appeal and uses it to her advantage. Sometimes she acts very immature, but she is very protective about Arthur and has shown great respect and love for her master, as well as the other way around.
 * Gate of the Mist (霧の鍵, Kiri no kagi): The Gate of the Mist Key is a crystal-type Gate Key used by Celestial Spirit Mages to summon the Mist, Dreina. The four-inch long key is depicted to be a regular crystal key designed to look like a Dandelion. The bow seems to be cloud-like, representing mist with a small green gem at the centre of it, while the blade looks like four twisted strings that get thinner as they reach the tip of the blade, making it sharp. Near the end of the blade appears a small Pan's Flute with many clouds engraved on it. A Celestial Spirit Mage is able to summon Driena while chanting, "Open, Gate of the Mist!", resulting in a mature woman with beautiful green hair appearing in front of the key, nearly always playing the Pan's Flute. She is dressed in a long white swaying dress and a short red cloak. She specializes in Mist Magic that allows her to generate and manipulate mist for various purposes, offensive, defensive and healing, each one of them being differently coloured. She is able to manipulate the density, volume and hardness of the mist, making it a powerful weapon. She appears to be like a mother to Arthur, always commenting on his messy hair, untidy clothes, et cetera. Despite this, she truly loves and cares for him.
 * Gate of the Petals (華の鍵, Hana no kagi): The Gate of the Rose Key is a crystal-type Gate Key used by Celestial Spirit Wizards in order to summon the Petal, Rose. The three-and-a-half-inch long key is described to be a regular crystal key, resembling a rose. The bow of this key resembles the flower, as the engravings on it represent rose petals. The stem seems to be a regular straight stem with the exceptions of several thorns appearing on the sides. The stem becomes more narrow as is approaches the tip, making the tip of the blade sharp. Near the very end of the blade, several rose leaves emerge from the blade and are parallel to the petals. By chanting, "’’Open, Gate of the Petals!’’", a Celestial Spirit Wizard is capable of summoning Rose, a young-looking girl with ash-grey hair, dressed in a seductive red dress, surrounded by various types of flowers that radiate sweet smell. Although she appears to have a fragile frame, she’s one of Arthur’s more powerful spirits. She has demonstrated to be able to manipulate plants, wood and flowers  by her will in order to achieve a desired effect, making her a highly qualified combatant. She is also able to conjure the above to use as well. She is kind and cares about other people, especially Arthur.
 * Gate of the Thunder (稲妻の鍵, Inazuma no kagi): The Gate of the Thunder Key is a crystal-type Gate Key used by Celestial Spirit Mages to summon the Thunder, Ignis. The four-inch long key is depicted to be a regular crystal key, designed to look like a stormy cloud. Its bow is bulbous in shape with sharp edges, resembling a very upset cloud. Its stem is shaped like a lightning bolt, making corners and edges as it moves toward the tip, getting thinner as it does so. In order to summon Ignis, a Celestial Spirit Mage has to hold the key in front of him and chant, "Open, Gate of the Thunder!", resulting in a young boy appearing in front of the key. The boy has pale blond hair and piercing blue eyes and is dressed in baggy clothes. The most unusual features are twin lightning bolt insignias on the palms of his hands, thanks to which he is able to generate and manipulate lightning. He is shown to be quite agile, using electricity to boost his speed. He rarely speaks and is quite distant, but the bond between him and Arthur is very strong.
 * Gate of the Paper (紙の鍵, Kami no kagi): The Gate of the Paper Key is a crystal-type Gate Key used by Celestial Spirit Wizards in order to summon the Paper, Charta. The three-and-three-quarter inches long key, designed to resemble an origami, is a regular crystal-type key. The bow is shaped like an origami lion's head that appears to be roaring and has extremely sharp edges. The stem is cylindrical and doesn't narrow as it reaches the tip of the blade. On the stem are various origami motifs. An origami crane rises near the end of the blade, also with very sharp edges. The Celestial Spirit Wizard is capable of summoning Charta by grabbing the key and holding it in front of themselves as they chant, "Open, Gate of the Paper!", resulting in the appearance of a girl with long blue hair that reaches her ankles, decorated with many pieces of paper, wearing a short white dress. Upon taking the colourful pieces of paper from her hair, she is able to change their volume in order to create a desired effect, making her a highly potent combatant. She blames herself for death of Arthur's mother, since she was unable to protect her. Because of this, she vows to protect Arthur at any cost, even her life.
 * Gate of the Black Cat (黒猫の鍵, Kuro neko no kagi): The Gate of the Black Cat Key is a Crystal-type Gate Key used by Celestial Spirit Mages to summon the Black Cat, Bastet. The four-and-one-quarter inches long key is depicted to be a regular crystal key resembling a cat. The bow is shaped like a cat's head that appears to be hissing, it has extraordinary sharp edges on which the summoner could easily cut themselves if they’re not paying attention. The stem appears to be designed like four twisted strings and doesn't narrow at the tip. The tip itself has a different design, looking like a cat's paw with claws pointing in the opposite direction than the head. The Celestial Spirit mage can summon Bastet while chanting, "Open, Gate of the Black Cat!". As a result, a young girl dressed in a black dress with cat-like ears appears in front of the summoner. Bastet specializes in Darkness Magic, allowing her to manipulate coloured shadows in order to get desired effects. In addition, she can transform herself into an actual black cat. While in this state, she doesn't radiate as much magical energy and easily gets unnoticed by sensors. She and Arthur have a strong relationship.
 * Gate of the Warrior (戦士の鍵, Senshi no kagi): The Gate of the Warrior Key is a hybrid type Gate key, but resembles a crystal-type the most. The key was originally a full crystal type, but upon breaking the tip, Arthur fixed it by infusing a small part of Topaz with the broken key. It resembles a normal looking key with a common elliptical bow, cylindrical stem and normal cuts, only the top part is light blue, while the rest is orange. A Celestial Spirit Wizard is able to summon Zaha by chanting, "Open, Gate of the Warrior!", and holding the key in front of him. The result is the appearance of a young man, dressed in ninja suit with a katana on his back. Zaha is capable of combining Air and Gravity  in order to create a unique technique, Pressure Magic. In addition, he is able to change the katana for a dual edged sword glowing radiant red and green, each one with unique sets of abilities. Both Arthur and Zaha state that they're best friends and Zaha is often summoned just to hang out.

Planetary Keys
The Planetary Celestial Gate Keys are keys used to summon Celestial Spirits, however, the spirits summoned from the Planetary Gate Keys each represent a different planet in the solar system as opposed to a constellation. There are ten known keys in all, each of which is a black-purple color, with a jewel embedded on the end opposite the teeth. The color of the jewel depends on the spirit the key is linked with. The keys are also notably larger in comparison to their more common counterparts. Compared to normal Celestial Spirits like the Silver and Zodiac Spirits, the Planetary Spirits are much more independent, so it takes a mage of considerable skill to be able to wield one efficiently and make them obey their orders. Currently, Arthur has a contract with one Planetary Spirit.
 * Spirit of the Earth: Terra (星霊の土, Sei no Tsuchi): Spirit of the Earth key is a Planetary type gate key used by celestial spirit mages to summon Terra, the Spirit of Earth. Despite her appearance, Terra is stated to be the eldest of the Planetary Spirits, as well as the least violent of the ten. However, she still possesses the strong independence of an older woman and as such she doesn't take orders as readily as her owners might prefer. Befitting the Spirit of The Earth, Terra is a skilled practitioner of Earth Magic. Out of all her comrades she is noted to be the third strongest, as well as one of the top lieutenants of Jupiter, the leader of the Ten Amethyst Keys.
 * Spirit of The Sea: Neptune (星霊の海, Sei no Umi):  Spirit of the Sea key is a Planetary type gate key used by celestial spirit mages to summon Neptune, the Spirit of Sea. Neptune is the older sister of Jupiter and the younger sister of Pluto. She is a powerful user of Water Magic, befitting the Spirit of The Sea, as well as a skilled staff wielder. She is especially disobedient of her owner's orders, but she has a habit of giving her owner orders as well in a motherly or older sisterly manner. She takes the appearance of a beautiful young woman wearing a hat similar to what a witch might wear. She wears a revealing tan robe and two pink seashells over her breasts. Like her brother Jupiter she has light blue hair.

Silver Keys
Silver Keys are the second type of Celestial Spirit Gate Keys, alongside the famous Golden and, less known, Crystal Keys. As their name states, they're made purely out of silver and can be commonly bought in Magic Shops. They usually come unadorned, contrary to their gold and silver counterparts. Each one of them counts as one unit, regardless the strength of the spirit. Currently, Arthur has contracts with nine Silver Type Celestial Spirits.


 * Gate of the Minor Fox (軽微狐の鍵, Keibi kitsune no kagi ): The Gate of the Minor Fox Key is a silver-type gate key utilised by Celestial Spirit Mages in order to summon the Minor Fox, Vulpex. The key has a standard silver design, square shaped bow, cylindrical stem and standard blade tip with teeth. There is a fox's paw crest on the bow, as well as on the teeth. A Celestial Spirit Mage is capable of summoning Vulpex by reciting, "Open, Gate of the Minor Fox!", while holding the key in front of himself, resulting in a cuddly, white-furred fox with red ornaments on its fur appearing in front of the mage. The fox also seems to be wearing a pair of bells around his neck, which are commonly heard when he uses his Fire Magic, that is, the ability to conjure and manipulate fire. Even though he's small, he has shown to be fierce when it comes to battle. He will act as a guardian, protecting his friend from any harm. Vulpex is said to be the third spirit Arthur made contract with.
 * Gate of the Wings (翼の鍵, Tsubasa no kagi): The Gate of the Wings Key is a silver-type gate key used by Celestial Spirit Mages while summoning the Wings, Fairy. The key has a simple silver design, elliptical bow, cylindrical stem and standard blade with wings as teeth. There is a wing crest on the bow, as well as a pair of silver angelic wings on the sides of the bow. A Celestial Spirit Mage is able to summon Fairy by chanting, "Open, Gate of the Wings!", and holding the key in front of them. The outcome of this action would be a young girl with long green hair that reaches her ankles with a pair of fairy wings on her back. She specializes in Fairy Magic; allowing her to perform a variety of attacks with Fairy Dust for offensive purposes, Prayer Magic; that allows her to boost the abilities of her allies, and Transformation; granting her the ability to change her physical appearance, mainly used for changing her size. Arthur believes that his bond with Fairy is the strongest one, since she was the first spirit he made contract with.
 * Gate of the Heavenly Bird (天国鳥の鍵, Tengoku tori no kagi): The Gate of the Heavenly Bird Key is a silver-type gate key used by Celestial Spirit Mages in order to summon the Heavenly Bird, Apus. The key has a standard silver-type design, it's bow is squared, the stem is cylindrical and the tip of the blade appears to represent a katana. A feather symbol is embedded on the bow, alongside several feather ornaments on the blade. A Celestial Spirit Mage is able to summon Apus by holding the key in front of them and reciting, "Open, Gate of the Heavenly Bird!". As a result, a young pale boy with a pair of giant bird-like blue wings holding a katana in his right hand. He is skilled in using it and can inflict powerful slashes on his enemies. In addition, Apus is able to generate and manipulate dark blue feathers, allowing him to change their volume, density and hardness, causing them to become potentially lethal. Arthur received this key upon reaching his eighth birthday, making it his second spirit to make a contract with.
 * Gate of the Dove (鳩の鍵, Hato no kagi): The Gate of the Dove Key is a silver-type key used by Celestial Spirit Mages in order to summon the dove, Lola. The key has a standard silver-type design. The bow of the key is elliptical, the stem is cylindrical and the tip of the blade represents a beak. There is a small heart embedded on the bow. This key allows a Celestial Spirit Mage to summon the dove, Lola, by reciting, "Open, Gate of the Dove!", while putting the gate key in front of him. The result is the appearance of a young girl dressed in silky clothes with angelic wings, carrying an olive branch in her right hand. Lola specializes in Healing Magic, allowing her to prevent unnecessary damages to both organic and non-organic matter. The two have an excellent relationship, since she treats him like an older sister. She often hits him and calls him an idiot while duelling someone.
 * Gate of the Reflection (鏡の鍵, Kagami no kagi): The Gate of the Reflection Key is a silver-type key that can be used by Celestial Spirit Mages to summon The Reflection, Specula. The key itself has an unusual design resembling a hand mirror. The bow is circular, the stem cylindrical and the tip is pointy. There is a little mirror stamped on the bow. This key allows Celestial Spirit Mages to summon the Reflection, Specula, by chanting, "Open, Gate of the Reflection!", while holding the key in front of them. As a result, small orbs erupt from the tip of the blade and form a young girl wearing a fairly revealing silver dress, holding a little, silver hand-mirror. The mirror is said to be able to change its size and, therefore, it's effects. When it's in its smaller form, the mirror can absorb and hold an attack sent towards her and use it later during the battle as her own. When in bigger form, the mirror is capable of concealing objects and people within. Even though Specula is one of Arthur's newer spirits, the two have an unbreakable bond.
 * Gate of the Shield (盾の鍵, Tate no kagi): The Gate of the Shield Key is a silver-type key used by Celestial Spirit Mages to summon the Shield, Scutum. The key has a standard silver-type design. The bow of the key is elliptical, the stem is cylindrical and the tip of the blade represents a medieval shield. There is a small shield embedded on the bow. This key allows a Celestial Spirit Mage to summon the shield, Scutum, by reciting, "Open, Gate of the Shield!", while holding the key in front of them. The result is the appearance of a fairly young girl carrying a giant shield. Scutum specializes in Requip: The Shielder, Shield Magic and Barrier Magic, often fusing the three, allowing her to block any attack that has a value lesser than 5600 on the MPF. Scutum is very protective of her Master and often refers to him as "The Celestial Emperor". She is one of the oldest spirits Arthur has made a contract with, thus the two have a strong connection. Scutum is one of the spirits that can open a gate freely and resist forced gate closure, proving not only her physical, but her mental strength as well.
 * Gate of the Horse (馬の鍵, Uma no kagi):
 * Gate of the Totem (強の鍵, Tsuyo no kagi):
 * Gate of the White Rabbit (白うさぎの鍵, Shiro usaga no kagi)

Legendary Platinum Keys

Legendary Platinum Keys have proven themselves to be the rarest keys of them all. Only those who have the will to find them, the body to wield them, the mind to understand their power, the spirit to guide them, and the soundest soul to give them a home can wield them. It is a Lost Magic and the Spirits embodied with the keys can roam the land freely without the need to return to the Celestial Spirit World.


 * Gate of the Northern Crown: King (北方冠の鍵, Hoppo kanmuri no kagi):
 * Gate of the Southern Crown: Queen (南冠>の鍵, Minami kanmuri no kagi):

Elemental keys
While the Silver and Gold Keys call the Celestial Spirits who represent the stars in space, the Elemental keys represent the elements. They live in a special part of the Celestial Spirit World. While they are a separate race, they have agreed to (for the most part) abide by the Spirit King's rules. Alone they are weak compared to Golden Spirits, but when in groups of at least three, they're equally strong as one Golden Spirit. Their keys can be found in their natural environment and usually take an appearance of a young boy/girl or an animal. Their respective keys are in different colours, each one representing an element. Currently, Arthur possesses four Elemental Keys
 * Gate of the Never-Ending Water! (水の鍵, Mizu no kagi): The Gate of the Never-Ending Water Key is an elemental-type key utilized by Celestial Spirit Mages to summoning Voda, the Never-Ending Water. The key has a typical water-based design; its bow is elliptical with many engravings resembling waves with a pair of handles, representing an upside-down urn. The stem seems to be unstable, representing the flowing water. It gets thicker as it reaches the tip of the blade, resembling a wavy sea, every detail on the key is coloured in silver, while the key itself is dark blue. While summoning Voda, a Celestial Spirit Mage has to hold the key in front of them while chanting, "Open, Gates of the Never-Ending Water!". A huge amount of water is released from the tip of the blade from which Voda is formed. She is dressed in a blue dress that appears to flow like water. Her blue hair reaches all the way to her lower back. Instead of feet she has a moving torrent of water that sprouts from her dress, spinning in the same manner as the dress itself. She is able to conjure or manipulate existing water from her surroundings in order to perform a variety of attacks. She is also able to manipulate water's temperature, making it icy cold or boiling hot. She is so proficient in Water Magic that her magic is equally strong as Aquarius's.
 * Earth Spirit: Summons the Geus, Earth Spirit. He specializes in Earth Magic.
 * Air Spirit: Summons the Eol, Air Spirit. He specializes in Air Magic.
 * Light Spirit: Summons the Lumina, Light Spirit. She specializes Light Magic.

Jade Keys
Jade Keys, also known as Aeon Keys, are a group of twelve unique gate keys that can be used by Celestial Spirit Mages to summon the long forgotten Aeon Spirits. While the Silver and Gold Keys call the Celestial Spirits who are representative of the stars in space, the Jade Key's Aeon Spirits are that of Time. Among the earliest residents of the Spirit World, they are embodiments of time and have a higher degree of "immortality" compared to Celestial spirits (they can live indefinitely in the human world and can freely travel between the two worlds), and have an immunity to Time Magic. While they are a separate race, they have agreed to abide by the Spirit King's rules. Currently, Arthur possesses three Jade Keys, proving himself pure-hearted as well as immensely blessed with magical energy, considering the fact that the spirits rarely choose to have a summoner.
 * Gate of the Rat! (水の鼠, Nezumi no kagi): The Gate of the Rat Key is a Jade-type key used by Celestial Spirit Mages to summon the Rat, Lau Shu. The key seems to have a normal design. It is light blue and slightly bigger than a typical golden key. There is a rat-symbol stamped on its bow. Lao Shu specializes in Doll-Play Magic.
 * Gate of the Ox! (水の雄牛, Osuushi no kagi): The Gate of the Ox Key is a Jade-type key utilized by Celestial Spirit Mages to summon the Ox, Niu. The key seems to have a normal design. It is light blue and slightly bigger than a typical golden key. There is an ox-symbol stamped on its bow. Niu specializes in Crash Magic.
 * Gate of the Rabbit! (うさぎの鍵, Usaga no kagi): The Gate of the Rabbit Key is a Jade-type key that can be used by Celestial Spirit Mages to summon the Rabbit, Tuzi. The key seems to have a normal design. It is light blue and slightly bigger than a typical golden key. There is a rabbit-symbol stamped on its bow. Tuzi specializes in Nullification Magic.


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Catalogue Book
Catalogue Book (目録本, Mokuroku hon) is a magical artifact that has been in possession of Arthur's family for over 400 years untilit finally came into Arthur's possession. It has been refered to as a Human version of Star Memory. It is rumoured that alongside Arthur's, there are only two more such artifacts, one of the owners being unknown. The book is said to be able to contain and store celestial spirit gate keys and allow only the rightful owner to summon it, either via Requip or by flipping throgh the pages, as the two (Requip and the book) are connected, sharing the same miniature dimension, as the book, upon being opened for the first time, remembers the owner's magical trait.

The Catalogue Book is very large, about the size of a dictionary or encyclopedia volume. It is bound in brown leather, and the front cover has a symbol composed of an interlocking triquetra and circle on it, symbolizing the past, present and future owners of the book. Despite being four hundred years old, the book is actually in very good condition, thanks to a protective spell casted on it. The book's pages are written in ink by hand. Each entry has their titles spelled out in elaborate multicolored calligraphy. The book is written by the whole Moshiyoto line, throughout the generations, and possibly by also very close friends. The book contains many illustrations, particularly drawings of celestial spirits so that they can be recognized by those who have access to the book.Some of the spells within it are written in an old, possibly forgotten language. Arthur is currently working on deciphering them.

The book's organization is haphazard at best. Arthur has remarked on several occasions that he searched "the entire book" when looking for specific information, which suggests that the book's previous owners simply filled in the pages sequentially rather than arranging the contents topically. However, given that the Catalogue Book is a collaborative work with contributions by over four centuries worth of numerous celestial spirit mages, topical organization was likely a practical impossibility.

However, even though poorly organized, one could say that the book is divided into three parts. The first part of the book is regarding theoretical knowledge and the mechanics of said magic, focusing on rather explaining the magic and learning every aspect of it. The second part of the book focuses on spells, power-ups and techniques limited to celestial spirit mages, as well as numerous tips on training, intending on making a celestial spirit mage powerful enough for them not to rely on their spirits. The third and final part revolves aroundthe celestial spirits in general, most of which are randomly arranged. Each one of the spirits has their own entry in the book, as well as a drawing of both, the spirit and the key, as well as a listing of their abilities, advantages, previous owners, personalities, weapons and such.
 * Protection of the Stars (星の保護, Hoshi no hogo; lit. The Ultimate Protection of the Night Sky): The book's only protection mechanism against evil, a very special and unique defensive technique the book possesses; This spells seems to allow it to become invincible, figuratively speaking. By combining two defensive abilities, Celestia and Sideris, the book creates two goldens spheres orbiting around itself. As the two make contact, they combine in a single seemingly larger barrier. The said barrier can withstand both magical and physical assaults, serving as an ultimate defence. The book draws energy for this spell from the celestial spirit world and is activated when the book is either being attacked or stolen, preventing the two from happening.

Svallin
Svallin (冷凍鎧, Reitō yoroi, lit. The Armour That Leaves No Spot Uncovered) is Arthur's 'armour, made by combining nano-cellulose or micro-fibrillated cellulose with a low-refractive-index polymer that is finally weaved with a modified form of polyvinyl chloride fiber. The suit takes a translucent, spandex like shape and appearance. However, this armour isn't an ordinary one. It is rather infused with unstable ethernano particles that constantly absorb and release ethernano from the enviroment, crystalizing it into numerous mini almost diamond-hard lacrimas, acting as a form of high-defense. The said combination of clothing and ethernano can be altered easily and adapt to a certain environment, allowing it to be incredibly resilient to drastic changes in heat, cold, pressure, density, dirt, etc. making it ideal for use as mage's armour. In order to keep his own magical reserves untouched, the said armour acts as if it were a one way membrane, allowing Arthur to expell his own energy outwards, but restricting the armour from absorbing it.

Additionally, in order to renew some of his own magic, Arthur can temporarily change the flow of the ethernano, allowing it to rapidly 'enter' Arthur, replenishing the previous energy loses by a small, yet significant, amount of energy. Usually, Arthur keeps this 'option' on for about 30 seconds, as that amount of time allows him to replenish just enough energy to summon two zodiac celestial spirits. However, it should be noted that, in case of allowing the ethernano to freely enter his body for a longer period of time, sometimes even 45 seconds, all of his muscles would start to cramble due to sudden energy change within the muscles.

Thanks to it's great capabilities and properties, Arthur has stated that the armour nearly halves the incoming damage, significantly increasing his durability during damage, as now, with the addition of the armour, it would take double the damage to knock out Arthur, assuming he were to duel a foe stronger than him. The said armour covers about 90% of Arthur's body, the exception being his head, neck and hands. For unknown reasons, Arthur still prefers to wear a set of civilian clothings above the armour, so that he wouldn't look too intimidating or frightening to his students. The additional set of clothing doesn't seem to interfere with the ethernano flow.
 * Recharge!: Arthur has demonstrated the ability to can temporarily change the flow of the ethernano, allowing it to rapidly 'enter' his body, replenishing the previous energy loses by a small, yet significant, amount of energy. Usually, Arthur keeps this 'option' on for about 30 seconds, as that amount of time allows him to replenish just enough energy to summon two zodiac celestial spirits. However, it should be noted that, in case of allowing the ethernano to freely enter his body for a longer period of time, sometimes even 45 seconds, all of his muscles would start to cramble due to sudden energy change within the muscles. This ability can only be done once per hour, making it a highly desirable skill.

Rings
Rings are magical items used via ring magic. There are many different types of rings, each granting a different magic with which to manipulate, from creating vortexes to healing major wounds. Currently, Arthur possesses three rings, one on his left hand and the other two on his left. Their primary weaknesses are their long recharge times.
 * Nature Ring: Has the ability to manipulate the five basic elements; Earth, Water, Air, Fire and Lightning. Depending on the stance of the ring, Arthur will gain the ability of minor telekinetic manipulation of the respective element, as well as a passive, barely noticeable feature that he can toggle at will. Only one stance can be activated at any time, to change stances, Arthur must rotate the head of the ring to select the appropriate element.
 * First stance of the Nature Ring! Water Stance!: Water stance is Nature Ring's first stance. This stance can be activated by rotating the blue-coloured crystal on top, making water the dominant element. Upon doing such, the ring radiates blue light, accompained with several small bubbles, that starts enveloping the wearer's hand. While in the Water stance, the ring grants the user hydrokinetic abilities, as well as augments the effect of healing performed by and done on the wearer. Additionally, while in the Water stance, Nature Ring is said to negate every fire-based attack.
 * Second stance of the Nature ring! Earth Stance!: Earth stance is the second stance of Nature Ring. This stance can be activated by rotating the green-coloured crystal on top, making earth the dominant element at given moment. Upon doing such, the ring radiates green aura that then surges around the wearer's hand. While in the Earth stance, the ring grants the user geokinetic abilities and is said to absorb a portion of incoming damage, regardless whether it's physically or magically based. Additionally, while in the Earth stance, Nature Ring is said to negate every lightning-based attack.
 * Third stance of the Nature Ring: Fire Stance!: Fire Stance is Nature Ring's third stance that can be activated by rotating the red-coloured crystal on top. That action makes fire the dominant element at given moment. Upon doing such, the ring radiates a fiery-red aura, in addition with some heat, that rapidly starts swirling around the wearer's fist. While in the Fire stance, the ring grants the user pyrokinetic abilities, as well as a minor boost in the wearer's attacks, especially fire-based ones. Additionally, while in the Fire stance, Nature Ring is said to negate every ice-based attack.
 * Fourth stance of the Nature Ring! Air Stance!: Air stance is the fourth stance of Nature Ring. This stance can be activated by rotating the transparent/white-coloured crystal on top, making air the dominant element. Upon doing such, light-blue aura is expelled from the ring, accompained with a small air current that is formed around the wearer's fist. While in the Air stance, the ring grants the user aerokinetic abilities, as well as coats the wearer's body with a 'layer' of air current. This feature enables the wear to move around quickly, increasing both speed and reflexes of the one wearing it. Additionally, while in the Air stance, Nature Ring is said to negate every earth-based attack, turning earth into dust.
 * Fifth stance of the Nature Ring! Lightning Stance!: Lightning stance is Nature Ring's fifth and final stance. This stance can be activated by rotating the yellow-coloured crystal on top, making lightning the dominant element. Upon doing such, the ring radiates yellow aura with several lightning bolts that starts surging around the wearer's fist. While in the Lightning stance, the ring grants the wearer electrokinetic abilities, keening the wearer's reflexes upon doing so. Additionally, while in the Lightning stance, Nature Ring is said to negate every water-based attack.


 * Hypnotic Ring: The Hypnotic Ring is a magical ring used to summon a bubble of sleep magic which flies towards the target until it makes contact, at which point, the bubble releases all of the energy and inflicts the target with a magic powerful enough to put a grown man to sleep. The ring is gold with a cloud emblem on the head, the letters, “Zzz”, are engraved onto the cloud. The ring is able to store energy via an internal lacrima. This lacrima constantly absorbs and stores negative and dark energy from the environment it is in. The lacrima can then, when required, release all the energy into the aforementioned attack. The ring takes roughly 24 hours to recharge, depending on the environment it is in.
 * Healing Ring: The Healing Ring is a magical ring used to summon a bubble of healing magic which flies towards the target until it makes contact, at which point, the bubble releases all of the energy and heals the target with a magic powerful enough to heal most cuts and even fractures. The ring is gold with a heart emblem on the head, a plus symbol is engraved onto the heart. The ring is able to store energy via an internal lacrima. This lacrima constantly absorbs and stores positive and light energy from the environment it is in. The lacrima can then, when required, release all the energy into the aforementioned attack. The ring takes roughly 24 hours to recharge, depending on the environment it is in.
 * Celestial Ring: The Celestial Ring is a magical ring used to channel and expell Celestial Energy outwards. The ring is said to be forged decades ago by an unknown Celestial Spirit Mage who used a broken gate key as ore to forge the said ring. The ring as such can be used as a medium for Celestial Energy without any actual energy spent, as the ring uses Celestial Energy originating from Celestial Spirit World. It looks like a standard golden ring with the inscription Celestial Emperor written on the inside of it. Arthur wears it on his right index-finger.

Greatstaff of Penance
This holy staff hold a great deal of magical energy. It reflects the users heart, and those who are pure of heart, are able to to control the never ending flow of magical energy that the staff continuously collects.



Emerald Gem
The second of the Seven Legendary Gems, representing hope. The emerald is infused with magical energy and, as such, increases the user’s magical power by a percentage. The gemstone also passively accumulates magical energy and can be activated, releasing all of the energy to replenish the users own magical reserves. It also has the ability to create a magic-negating force field. Arthur wears the emerald on his necklace, it was given to him by his mother and has been in his family for 28 generations. It is believed that all the previous users were also Celestial Spirit mages and that the gemstone originated from the Celestial Spirit world. The gemstone takes roughly 24 hours to absorb enough energy to become fully charged.
 * Release (リリース, Rirīsu): By clenshing his fist while holding the said gem, Arthur is able to utilize this item for it's original purpose. The emerald would started glowing bright green upon releasing a sort-of aura that begins to envelop Arthur's body. The aura is said to be a gas-like state of pure ethernano it has accumulated withinin the time of its last use, although 24 hours are enough for it to be completely charged. The aura will then rapidly start entering his body, fully replenishing his previously lost energy and even healing all of his wounds. Even though rarely, Arthur prefers to use this technique only when he is left no other choice.
 * Release: Spirit Style (リリース: スピリットスタイル, Rirīsu: Supiritto sutairu): If Arthur were to be unconcious, some of his spirits are often capable of activating the gemstone themselves, recovering his magical reserves for him and healing all of his wounds, granting him the ability of a fresh new start.
 * Crystal of Protection (保護の結晶, Hogo no kesshō): Another ability of the gemstone is to create a large, crystalline shielding aura (approximately 10 meters). This aura is able to negate all magic, the exception being the caster.

Topaz Gem
The Sixth of the Seven Legendary Gems, representing Calmness. It is yellow and made of a unique alloy comprised of topaz and quartz. The topaz is infused with magical energy and, as such, increases the user’s magical power by a percentage. The gemstone also passively accumulates magical energy and can be activated, releasing all of the energy to completely heal the user. Formerly, the gem belonged to Zaha and part of it is now embedded into Zaha’s summoning key. The gemstone takes roughly 24 hours to absorb enough energy to become fully charged.
 * Release(リリース, Rirīsu): By clenshing his fist while holding the said gem, Arthur is able to utilize this item for it's original purpose. The emerald would started glowing bright yellow upon releasing a sort-of aura that begins to envelop Arthur's body. The aura is said to be a gas-like state of pure ethernano it has accumulated withinin the time of its last use, although 24 hours are enough for it to be completely charged. The aura will then rapidly start entering his body, fully replenishing his previously lost energy and even healing all of his wounds. Even though rarely, Arthur prefers to use this technique only when he is left no other choice. Since the topaz has been split into two pieces, each piece can be activated independently of the other, but they also have a smaller reserve of energy and a weaker effect.
 * Release: Spirit Style (リリース: スピリットスタイル, Rirīsu: Supiritto sutairu): If Arthur were to be unconcious, some of his spirits are often capable of activating the gemstone themselves, recovering his magical reserves for him and healing all of his wounds, granting him the ability of a fresh new start.
 * Dark Ward ( ダークワード, Dāku wādo): Topaz has the ability to absorb any dark energy (excluding death magic) and nullify it.

Opal
The Fifth of Seven Legendary Gems, representing Mercy. The gemstone is white and is said to be made of numerous crystals in different ratios, making it nearly impossible to recognize and identify all of the crystals. Opal is infused with magical energy and is said to passively increase the holder's magical energy and capabilities. Additionally, the gemstone passively collects ethernano from its enviroment, accumulating it and allowing Arthur to release it all at once, restoring his magic reserves completely. Opal has one more skill that many don't know of, it grants Arthur the ability to see the future in his dreams.
 * Release(リリース, Rirīsu): By clenshing his fist while holding the said gem, Arthur is able to utilize this item for it's original purpose. The emerald would started glowing bright white upon releasing a sort-of aura that begins to envelop Arthur's body. The aura is said to be a gas-like state of pure ethernano it has accumulated withinin the time of its last use, although 24 hours are enough for it to be completely charged. The aura will then rapidly start entering his body, fully replenishing his previously lost energy and even healing all of his wounds. Even though rarely, Arthur prefers to use this technique only when he is left no other choice.
 * Release: Spirit Style (リリース: スピリットスタイル, Rirīsu: Supiritto sutairu): If Arthur were to be unconcious, some of his spirits are often capable of activating the gemstone themselves, recovering his magical reserves for him and healing all of his wounds, granting him the ability of a fresh new start.
 * Precognitive Dreams: This ability, as it's name states, allows Arthur to see the future. In order to see and dream the future, this ability requires Arthur to be unconscious. He can't activate this ability by will. The dreams, as dreams tend to be, are open to interpretation. There appear to be more often then not slight differences between the dream and the actual events. Whether this is related to dreams not being entirely literal, the future constantly changing, how far in the future the events take place, or simply a natural consequence of the power is unknown. Arthur admits that he doesn't always understand his dreams, as they are open to interpretation. At the same time the dreams can be very accurate in relation to actual events. There are no known limits as to how far into the future the dreams can reach. Most of the dreams take parts in events taking place the following day, but in some cases months and years ahead of time.

Fleuve d'Étoiles
Fleuve d'Étoiles  (星の大河, Etowāru Furūgu; lit River of Stars of the Eridanus Constellation) is Arthur’s primary weapon besides his Celestial Spirit Keys, he acquired it as a gift on his twelfth birthday from one of his spirits. While not in use, only the whip's handle is visible, this possessing a simple, cylindrical form with a dark blue central part and golden edges; the lower one is covered in stud-like ornaments and has a small blue rope hanging from it, from which a yellow star-shaped pendant is attached. When the weapon is being used, a jet of flowing water is created from the handle, which remains compact, and twists and moves as if it were the rope on an actual whip. Later on as Arthur's power grew, the whip itself became portrayed as being less water-like and more celestial in appearance: a stream of eerily blue celestial matter comes forth from the handle and is surrounded by yellow-white light that twists around its entire length. The water acts as a solid, allowing Arthur to grab onto solid objects as well as to perform a various array attacks.

What most people don't know is that Fleuve d'Étoiles has another unique ability, allowing the bearer to insert a celestial spirit gate key of any kind in order to temporarily gain the respective spirit's abilities, magic-wise. Upon doing so, the whip is most likely to change its colour, representing the respective spirit's magic. In order for this to work, the spirit mustn't be summoned and the two must have a valid contract. In order to inniciate this spell, the user has to input the key whose spirit's they'd like to inherit, There is a special socket, universal for all keys. The spirit is then to aprove of this action telepathically and upon their agreement, Fleuve d'Étoiles is good to go.
 * Elemental Inversion: Swap (要素の反転：変更, Yōso no hanten: Henkō, lit. Element Stance Modification): Although unknown to many, Arthur has the ability to swap the two elements flowing within, making light the dominant and water the subordinate one. During this phase, whip's existing water-manipulation ability is permanently swapped by light-manipulation ability of the same nature. Arthur can revert the element at any given time, although the cooldown between two revertions is 180 seconds, or 3 minutes to be precise. Upon closing the weapon, the state will be reverted to water-stance, regardless of the cooldown.
 * (, lit. The Never-Ending River):
 * (, lit. The Light That Never Dies):
 * Cosmic Water (, lit. Curious Amalgam of Water and Light)