Unoki, a boy who's been bullied since elementary school, ends up becoming an exclusive errand boy of the top delinquent of his school, Toramaru, who told him "Be mine" right after entering high school. But the truth is that Toramaru meant it as a confession of love!!

This is the beginning of a love misunderstanding between Toramaru, who thinks she's in a relationship, and Unoki, who think he's being bullied.

(Source: MU)