Toudou Kirin♀

Kirin is one of Saya's best friends. Kirin is generally shy, sweet, and polite. Due to her childhood trauma of indirectly causing her father to be incarcerated, she is initially self-loathing. After being inspired by Ayato to be her own person instead of someone else's tool, she begins to be more assertive, although she is still full of self-doubt and as such, she reguarly apologizes profusely whenever she finds herself to have offended others in any way, even when it is not entirely her fault. As she is used to being treated as a tool instead of a person, she is slow to warm up to others, but in time has proven herself to be a good friend.

Being the only child of the Toudou family, Kirin is very proficient and extensively trained in her family's style, the Toudouryuu, which is a type of martial arts. The essence of it is to fool the opponent through the use of gaze, breathing, and slight movements. The Toudouryuu has 49 techniques that can be chained together to create fluid attacks. She wields a katana called "Senbakiri" as her weapon and her reason for entering the Festa is to release her father from jail.

[Edited from Wikipedia & Asterisk War Wiki]