Hayase Nagatoro from Don't Toy with Me, Miss Nagatoro is an energetic and mischievous high school girl who becomes passionate about teasing her senpai, Hachiouji Naoto. He is a senior, introverted ...

Senpai’s real name is Naoto Hachiouji. Various hints have been left along the way, with initially only his surname being revealed. Of course, he also goes by various nicknames, including Paisen ...