Shirai Yuyu

Shirai Yuyu (白井夢結) is a Lily who attends Yurigaoka Girls' Academy. She is the vice-captain of Team Hitotsuyanagi. Her Schild is Hitotsuyanagi Riri.

Personality
Yuyu has trouble waking up in the morning.

History
Yuyu met Yoshimura Thi Mai during middle school and, after a short period of initial dislike, became a friendly rival of hers with respect for her skill and conviction. At this time, she used a Dainsleif as her CHARM and was a member of the reserve team that later became Legion Álfheimr.

Yuyu's Schutzengel was Kawazoe Misuzu, who was killed in unclear circumstances during the Koshu Withdrawal while fighting together with Yuyu. Filled with regret, Yuyu continued to fight, supported by Mai and her other friends from the time of the Koshu Withdrawal. Legion Álfheimr eventually disbanded following the Odaiba Counteroffensive; according to Futagawa Fumi, Yuyu's state of mind at the time was one of the many reasons for their dissolution.

This, unfortunately, only added to Yuyu's mental instability, which had worsened to the point that it caused most others to avoid her. She gained several nicknames at this time, including "The Aloof Lily" and "Shinigami." Among her only remaining companions during this period were Mai and Hata Matsuri.

During her second year of high school, Yuyu met Hitotsuyanagi Riri for the second time. Yuyu had saved Riri's life during the Koshu Withdrawal, and Riri was inspired by her example to become a Riri and enter Yurigaoka herself, where she hoped to take the Schutzengel's Oath with Yuyu.

Anime/game
In Assault Lily: Bouquet, Yuyu initially refused to take Riri on as her Schild, but agreed to do so after being persuaded by Kaede Johan Nouvel, mentioning in private that Riri "wouldn't understand otherwise" and expressing the hope that she would regret the decision. She later ordered Riri to gather members for a legion, as doing so would make her "act more like a proper Lily." Yuyu was not expecting Riri to be able to recruit the minimum roster of nine people, but thought failing to do so might be a good experience for her.

Riri surprised Yuyu by eventually finding all seven of the other Lilies needed for them to form a legion. This legion became Team Hitotsuyanagi.

Stage plays
In Assault Lily: League of Gardens, when Riri asked Yuyu to be her Schutzengel, Yuyu angrily told Riri that she wasn't someone Riri ought to admire and if Riri stayed close to her she'd only regret it. Later, Mai approached Riri and suggested that she form a legion, as it would be good for Yuyu to be in one. Riri had recruited six other Lilies for this unofficial legion by the time she decided to go to Shimokitazawa in pursuit of Ando Tazusa; Yuyu also accompanied them.

After the events that took place in Shimokitazawa, Yuyu agreed to take the Schutzengel's Oath with Riri and join the legion, which was then officially established as Team Hitotsuyanagi.

Combat Style
In both the first-generation Legion Álfheimr and her current legion, Team Hitotsuyanagi, Yuyu has specialized in fighting in the central AZ. She is renowned for her ability to keep enemies under pressure and is considered one of Yurigaoka'a finest front-line Lilies.

Yuyu generally only uses her Rare Skill in emergencies, as she is well aware that she's prone to losing control of herself due to Divine Possession.

Family
The Shirai are a prestigious family whose name is synonymous with resistance against the Huge, both in Kamakura Prefecture and elsewhere in the world. Many Lilies, Arsenals, military officers, and researchers bear the Shirai name.

Yuyu's father, Shirai Akito (白井暁翔), is the head of the extended Shirai family. He is the chairman of the Shirai Construction Group, the industry leader in building Gardens and other anti-Huge fortifications (they do not construct civilian buildings.)

Yuyu's mother, Shirai Aya (白井朱結), was once a talented Lily. She attended Yurigaoka during her active years, where she was elected as Brynhildr. She is known for her gentle demeanor.

Yuyu had a sister, Shirai Saaya (白井咲朱), who was several years older than her. She attended Yurigaoka, where she was beloved by all due to her refined and gentle personality, as well as her splendor upon the battlefield. She was Ortlinde in her second year and Sigrún in her third year. Yurigaoka's staff had plans to take Saaya on as an instructor, but shortly before she would have graduated, she died in battle.

Trivia

 * Yuyu likes black tea, sandwiches, and spicy food.
 * Yuyu's hobbies are reading and watching theater.
 * Yuyu dislikes vulgar and indecent things.
 * Yuyu's surname may be a reference to the real-world architect Shirai Seiichi.