Matsushige is a silly boy who likes cute girls but despairs after entering a boys' school. He falls in love with Takanashi, his baby-faced homeroom teacher, but his heart is about to break again when he can't even remember his face. Just then, he learns Takanashi's secret that he can't tell anyone, and a chance to get close to him arrives..!　A twisted love affair between a silly, masked boy and a “princess” of an all-boys school with a reason is about to begin!