Yui Kashī

Yui Kashī is the classmate of Junichi Hashiba. Yui's an attractive girl with waist-length or hip-length black hair, blood-red eyes and she has what appears to be a snake beret in her hair. When dressing up as Mistress BoA, Yui has long blonde hair (red hair in the anime) that's tied up into twin-tails, blue eyes, and then the snake beret becomes a necklace to dissociate herself from her real-life counterpart. In the anime, Junichi Hashiba's friends mention that Yui's the only girl, cause she doesn't have big breasts like the other girls.

Yui puts on a public façade of being a nice and friendly girl who is excellent at academics. She is referred as the school's Madonna (an idealized virtuous and beautiful woman) by Junichi Hashiba's friends as she is smart and beautiful. She is trusted by almost everyone who is not aware of her true ...