Inaba Yui

Like Shou, Yui has recently transferred into the school, and is not yet familiar with the many unusual aspects of the school. Yui really loves sweet things (especially doughnuts!) and samurai. She gets on well with everyone and is always very upbeat. She has a huge appetite (like Shou) but she gets embarrassed about it because she’s a girl.

From Wikipedia and Liemyx's review