Yuno is Taro Sado's classmate. She has androphobia due to an attempted sexual assault by her former boyfriend in junior high school, and will attack any males who touch her, subconsciously feeling that she has to hit them before they hit her. She is also the one who caused Taro to become a masochist but despite her androphobia she develops a crush on Taro and is also hinted to be jealous as well when another girl is involved with Taro such as the case when Mio asked Taro out on a date and when Noa gave him a mound of lilacs and that she gave off a pouting face.
She occasionally gets into situations where she briefly forgets her androphobia in her eagerness to get closer to Taro (or is accidentally touched by him), and when she actually realises what happens, she comically assaults Taro who, due to his masochism, enjoys.
