Fantasia Yusano

Yusano is a blonde busty who has sky blue eyes and rosy cheeks, wears a pink motif outfit sporting a nurses outfit with a sports jacket over it. She also wears a bunny's face on her hat and a crucifix as a necklace.

Yusano has a very air-headed and cheerful personality, and is interested in trivial things, such as chocolate and whenever or not girls look cute in certain outfits. Although she's shown to be devoted to Fallen Black and close to the members, she has shown irresponsibilities toward the workload and is more interested in just going home.

Her ability is called "Sex Eclipse" and has the ability to change the morals and personality of others.

(Source: Inou Battle wa Nichijou Kei No Naka De Wikia, edited)