Shuutai Youhei

In the visual novel, she is an officer in the sequel, Shin Koihime Musou. Despite her small size, she's a skillful warrior, wielding a sword that's as long as she is tall. She's quite fond of cats. She develops a huge crush on Kazuto, to the point of blushing profusely when the other members of the Wu faction tease her about it.

(Source: Wikipedia)