Yui Kurata

Yui Kurata is the Trinity Seven of the Avaritia Archive and a Cardinal class mage, making her second only to the Biblia's Headmaster. Originally sealed away in a dungeon, she has since been saved by her friends and Arata, becoming a close ally and friend.

Personality
Yui has a very happy and bubbly personality, which often makes her seem childish at times. As such, she is very open of her thoughts, almost always expressing her feelings vocally and physically. For most of the time, Yui is usually excited and joyful, remaining cheerful in even the most tense and dangerous circumstances. Additionally, she rarely holds grudges and thinks ill will of others. After being saved by Arata, she remained friendly towards Mira, who previously was willing to kill her in order to stop her Breakdown Phenomenon. However, her mood can also easily shift depending on the situations, becoming frustrated when things do not go her way or becoming scared when confronted by something she is afraid of. Ironically, Yui is quite frightened by ghosts, but finds the monsters she creates cute. Yui is very friendly and easy to get along with, but notably, due to being placed in the school dungeon alone to sleep, she does not have many friends or close relationships. With the exception of the other Trinity Seven members, specifically Levi, she has remained relatively isolated from people until meeting Arata, whom she has become very attached to. Since then, Yui has become more interactive with her friends, happily playing and enjoying their company. Additonally, she can also be fairly mischievious and daring, often times teasing her friends which she greatly takes delight in. Ordinarily, she is not shy about her body, making suggestive remarks or acting boldy, particularly towards Arata. On one occassion, she independently slept naked in his bed with him. Yui cares very deeply for her friends, wiling to fight and protect them from harm. During Iscariot's attack on Biblia, after Levi was defeated by Lugh, she was determined to go and fight by herself, becoming tearful and unwilling to let Levi shoulder the burden by herself.

Yui has also been known to be serious and mature at times. In her first meeting with Arata as her dream form, she acted in a polite and refined manner, helping him discover his Thema. During battles, she can become determined and focused, often times she will support her friends or actively fight herself. Although, she continues to remain friendly and cheerful, even against enemies. Particularly, she has very good teamwork, using her magic to bolster and cooperate effectively with her allies. In the Biblia Magic Research Showdown, Yui, together with Arin, were able to pressure Arata and Lieselotte for the majority of the match, and eventually defeat them to win.

Appearance
Yui is a well endowed young woman with distinct yellow plus shaped eyes and shoulder length grey-white hair with a single ahoge. Her hair is normally tied into pigtails held together with pink ribbons, along with three pink heart shaped hair clips on her bangs.

She generally wears her school uniform, which consists of a white collared shirt worn under a dark blazer jacket with cuffs and the school insignia on the left breast pocket. The lower half includes a plaid mini skirt, black dress socks and brown loafers.

Magus Mode: Yui wears a white, sleeveless collared tail blouse with white laces on the bottom hems. Additonally, she now wears opera gloves with white cuffs that is pink from the arm to the wrist and black onwards to the hands. She also wears the same plaid mini skirt and brown loafers, but with thigh high socks with cuffs that is white from the ankle to the foot. Lastly, Yui also wields a white conductor baton in this mode as well.

Dream Form: In her dream form, Yui transforms into an idealized older version of herself, becoming taller and her busom also notably grows bigger. Furthermore, her hair grows longer as well, now covering her back. Originally, she had her bangs tied together with a rubber hair band and did not have her three heart shaped hair clips. However, since then, she currently styles a small ponytail on her upper left side with the heart shaped hair clips.

History
Due to her immense magical abilities, Yui was sealed by Master Biblia in a dungeon under the Royal Bilbia Academy where she would sleep and research in her dream world. Occasionally, Levi would visit her in the dungeon, but otherwise, she remained isolated from the outside world.

Meeting Arata
Arata met her when she saved him from being killed by Akio to stop the breakdown phenomenon. She pulled him into the dream world at the last moment. There she introduced herself, and explained to him what archives and themas were.

When Arata met with her, the power of the magic king affected her. Causing the entire school to go to sleep as part of a Breakdown Phenomena.

Arc Symphony
Yui's Thema is Amicitia from the Avaritia archive, and her magic is Arc Symphony. As a Cardinal class mage, she is one of the strongest mages in Biblia Academy, being second only to the Headmaster. However, because of her immense magical powers, if left unrestrained, she becomes capable of creating a Breakdown Phenomenon that can put the entire world to sleep and eventually destroy everything. During her own Breakdown Phenomenon, a dragon, considered to be a very high level monster, would even appear. As such, she was originally sealed away in a dungeon under the school by the Headmaster where she slept and lived in her dream world.

Yui's Arc Symphony grants her the ability to create her own world and control any aspect within it. Inside her dream world, she is able to use her full power such as altering dimensions, creating different types of monsters, allowing access to her world and even change her own appearance to an idealized version of herself. Although, if she becomes upset, she cannot maintain the image and temporarily reverts back to her true form. Futhermore, she can directly effect affect the real world as well, such as physically pulling people into her dream world, directlying communicate or project an astral image of herself in the real world to support her friends and allies. While Arc Symphony is not entirely suited for direct combat, Yui especially excels in supporting and augmenting other magic, putting her magic in a different class of it's own. Using Arc Symphony, she can greatly increase Akio's Mantra Enchantment power or even enhance Arin's Chaotic Rune to achieve the Trinity. Although, not all magic is compatible with her Arc Symphony, such as Levi's Shamanic Magic. Nevertheless, her support magic and good teamwork makes her an ideal partner in battles. Yui has also been shown to be able to remain mostly calm in dangerous situations. Moreover, her magic even allows stabilize rampaging magic such as Selina after she had her magic stolen by Lieselotte.

Additionally, Yui also has the ability to summon monsters to do her bidding and instantly create large barriers that replicates her dream world in the real world. In particular, her barrier is said to contain enormous amount of magic that not even Lieselotte is not able to fully analyze it and even amaze Ilia. As long as she is within her barrier, Yui is able to use her full strength and perform spells similar to Arata's world reconstruction magic. This allows her to hold her own in a fight despite specializing in support magic.

Outside of magic, Yui is also a skilled violinist.

Techniques

 * Starry Night Serenade - A spell that pulls others into her dream world where she can make them fall asleep with a dream of her choice, or both.
 * Dreamy Fairy Serenade - A large area sleeping spell, Yui summons multiple creatures with the appearance of musical notes with wings to do her bidding. Anyone with low magic who comes near them fall asleep.


 * Shift Change - Yui reconnects to her archive and transforms into her dream self which allows her to use more powerful magic.

Combination
 * Meteor Symphony - A spell similar to a meteor shower that rains down star-shaped objects at Yui's target. The name is borrowed from Arata's "Meteor Dragonar"; which Arata used to suppress Yui's Breakdown phenomenon and save her.
 * Holy Seal/Divine Song - By enhancing Chaotic Rune Holy Seal with Arc Symphony Divine Song macro, Arin and Yui are able to create a barrier capable of destroying Arata's Meteo Dragonar

Grimoire

 * Aleister's Score

Relationships
Arata Kasuga -Yui has a crush on Arata. She calls him Onii-san.

Trinity Seven
Arin Kannazuki -Edit here

Akio Fudo -Edit here

Mira Yamana -Edit here

Lilith Asami -Edit here

Levi Kazama - Yui considers Levi as a friend due to them both being unable to "understand" friendship.

Lieselotte Sherlock -Edit here

Selina Sherlock -Edit here

Royal Biblia Academy
Master Biblia -Edit here

Trivia

 * Her dream form bares a resemblance to Mirajane from Fairy Tail
 * Yui rarely ever shows up to class.
 * Selina once mentioned that no one in the academy has seen her magus form until she uses it to put the Trinity Seven to sleep when she believes they are fighting over Arata