Kyoka Jiro (耳じ郎ろう響きょう香か Jirō Kyōka?), also known as Hearing Hero: Earphone Jack is a student in Class 1-A at U.A. High School, training to become a Pro Hero. Kyoka has a pragmatic, unenthusiastic, and teasing personality that is mostly shown to those she finds irritating. Kyoka is not always like this though, as she does enjoy socializing with others. She's shown to blush heavily and hide her face at ANY compliments she receives, getting flustered. She doesn't like to flex her skills much.