Gate Holder of the Celtic Zodiac Keys, and also Natsu's younger sister?

Yuki's Gate Keys.

Stag: Shika, Shika has tanner skin along with Brown hair and golden brown eyes, he has two horns sticking out the sides of his head and he has his old native garb on along with a cape like garb. When fighting he uses his horns, or he can grow horn like trees out of the ground to trap his enemies. Shika is very proud of himself and he sure does act like it, he's a bit of an asshole to other guys and a bit of a flirt to girls since he's full of himself but he has a high respect for Yuki and will protect her with his life. While he's a big flirt, he is fully devoted to Hana above everyone and get's jealous easily.

Cat: Neko, Neko has Purple hair and purple eyes along with purple ears and white tuffs of fur on the inside of her ears. She wears a big white t-shirt and black short shorts with a black spiked collar around her neck. Neko's powers are surprisingly, she is very strong and she has her nails which can grow out to very long claws. Neko is skittish in nature and very shy, which makes it surprising that she is so very strong. Neko is easily scared by people but her and Yuki share a very close bond, Yuki bringing her out of her shell a bit. Neko would feel lost without Yuki and feels like Yuki is one of her best friends.

Cow/Bull: Hana, Hana, also known as flower by Shika her boyfriend, has light brown hair and bright blue eyes to match her spunky attitude. She wears a very small shirt, which is more like a bikini or bra, and jean shorts with a black belt. Hana has two bull horns and a tail that Shika will pull on to mess with her. Hana, when fighting, has a ray gun that she is almost a perfect shot with, she can charge it up to shoot one powerful shot, or she can shoot multiple shots. Hana is very outgoing and spunky in attitude. She loves Yuki being the one who owns her key and she's happy that she's with her friends and helping Yuki out at the same time.

Horse: Yopparai, also known as Yoppa or the Drunk, is, well, a guy that looks like he just put on a horse head mask. He is usually wearing a brown overcoat only and green jeans. Yoppa always has a booze bottle in hand and is pretty laid back and funny till you get him pissed then he goes into a rage with bottles of alcohol and, well, that's his weapon. Bottles. He's pretty unstoppable when angry because of how drunk he is he doesn't feel pain. Yoppa likes to show up a lot when he isn't wanted and likes to try and ruin plans since well, he's drunk. When serious he is respectful of Yuki and is happy to be her spirit but most of the time he's a drunken asshole.

Butterfly: Cho~ Cho~, Cho~ Cho~ or ChouChou or even just Cho, has white hair and brilliant red eyes. She has Blue and black wings with a very pretty design. Her magic is well, her wings and power of flight along with powders she can spread with her wings such as sleep powder, which makes your tired, poison powder, which slightly poisons you and makes you slower but it wears off, and other powders. Cho Cho is one of the only spirits who doesn't seem to respect Yuki because of her, better than you, attitude. Also she hates Yuki because of how much everyone else likes her, including Sickness, but in reality if Yuki was about to die, Cho would save her.

Snake: Ayame, Ayame was named because at first he was thought to be a girl, but he is far from girly. Always having his shirt off, this blonde with green eyes and dark circles around his eyes along with his sharp fangs toned body, and dark brown jeans is someone not to mess with. Ayame uses poison and his fangs drip poison, he also has pet snakes that do his bidding. Ayame can turn into a huge snake also with the power of flight and can fight like that. Ayame has a not caring asshole personality and doesn't really care about anyone but his snakes, his fellow spirits, and only sometimes Yuki. He respects her but he doesn't act like it. He has a huge crush on Cho~ Cho~ Though.

Seahorse: Aqua, Aqua has blonde hair and purple-red eyes along with her hands being fins and her tail is like a mermaids. Her ears are two fins and while she can be summoned, you need to summon her out of even a cup of water, and she floats above the ground. Aqua would rather be summoned in the ocean since she is a sea horse but she is fine either way because she just loves to help. Aqua's magic is her voice, she can do anything from sing melodies to put people to sleep, or screech and make peoples eardrums bleed. Also her tail fin is pretty damn strong. Aqua is always happy to help and she's a bit of an optimist. She loves to do Yuki's hair even with her fin hands because she can make them only sleeves then have actual hands. Aqua very highly loves and respects Yuki above all but her lover Kyoya.

Fish: Kyoya, Kyoya is a green haired guy with green yellow eyes, his hips down is a tail and he is usually caught hanging around his two shark friends, Fee and Dee. Kyoya attacks with either water magic, or his two sharks which can float above land and well, sorta fly as if they were in water. Kyoya likes to be summoned in the ocean but if needed he will summon in a small amount of water, but you need a little bit of water to summon him. Kyoya is the very quiet strong type and the only person he can really talk to is Aqua but he respects Yuki, since Aqua does, and listens to what she tells him to do if he can do it.

Wolf: Sickness, Sickness is the very first spirit to find Yuki. Sickness and Yuki go way back, he was the one that saved Yuki from the kidnappers and he swore to protecting Yuki for the rest of her life. He has White hair and red eyes, and in reality looks nothing like a wolf. Sickness puts Yuki above all else and he is a very strong spirit in it's self with just hand to hand combat, he is able to par with Neko easily, but if he brings magic in as a factor he uses Red Static magic that power his punches and kicks, quiet like Leo's Regulus' magic. Sickness can also turn into a huge wolf, well, huge for a wolf. When in his Black Wolf form his eyes are still red and he's as tall as Yuki. Out of his wolf form he is as tall as Natsu and Gray but not as tall as Elfman. Sickness is very caring towards Yuki and is a bit of a jerk to anyone else, he likes to pop in and save Yuki a lot even when she doesn't summon him which sort of pisses her off some times because she likes to handle the situation herself and doesn't like oweing him more than she already does. While he doesn't act like it because he cares for Yuki too much, he has had a crush on Neko, for a very, very, long time and he's even appeared before when Yuki and Neko were fighting and protected Neko, using his own magic. If you were to say anyone was the leader of the Celtic Zodiac it would be him, because while they don't all act like it at all times, everyone in the White Celtic Zodiac keys respect him.

Fox: Kitsune, Kitsune is a Fox demon with orange hair and orange ears and an orange tail, he's pretty buff and wears clothes to match his ears and tail. He has Bandages around his arms and fists at all times along with weird markings down his arms. Kitsune's magic is, well, he has a sword and is great with his sword and sword fighting. He can also duel wield his sword by splitting them but he usually gives his opponent a fair chance and just uses one sword. He can also grow his tail bigger and hit people with it. Kitsune is a joker and likes to pull pranks and mess with people in his own way, he is also very cunning and when he fights he gets very quiet and serious.

Wren: Demon, Demon is nothing like the small little bird called a Wren, he has Black hair with white streaks in it, red or blue eyes, and black wings. He is slightly evil and when Yuki summons him black marks appear on her face and her body, Demon takes a lot out of her and slightly taints her soul and magic so she barely uses him, and Demon understands why. Demon uses darkness magic, but it's different then Shadow magic, very different, it would be more like Zeref's death magic then Shadow magic. Demon is very quiet most of the time but then when he starts fighting he goes insane with Madness and doesn't hold back, hurting Yuki with the more magic he uses, that's why he tells Yuki not to use him, afraid he would hurt her since he cares about her. Sickness has had to intervene multiple times and punch some sense into him because he has almost killed Yuki multiple times. Yuki can summon him just to talk to him and she likes to since she can't use him for fighting a lot. He is the thirteenth key.

Swan: Bebe, Bebe has Blonde orangish hair with yellows eyes, she wears an all white dress and has wings attached her arms making her ever movement graceful and elegant. When she fights she uses feather magic and dances with the move she uses, the feathers are like razors and magic bullets that hurt and harm people, Bebe can't take much damage though because of how fragile she is, and she can't really fly but she can jump up very high into the air. Bebe is an elegant person and when she does talk it is very, very classy. Bebe is almost like the opposite of Demon, and yet, she she has a huge crush on him.

Falcon/Hawk: Itachi, Itachi has black hair and red eyes, he wears a falconing outfit and he has his pet Falcon Hoku. When fighting, well, he's not the best for fighting. Itachi can turn into a small hawk also like Hoku and he's very good for a messenger bird, or scooping out areas and going up high in the sky to get a look at things. When he does fight he uses a crossbow that appears in his hands, and Hoku attacks also where he shoots the arrow. He can sometimes shoot bomb arrows, flaming arrows, and other types of arrows but it is very rare and only on occasion because he can't choose which one he fires. Itachi is a quiet outgoing guy, but if you start a conversation with him he can go on for days talking. He has a very high respect for Yuki.