Childhood friends Yotsuba and Kenta attend the same school, but lead completely opposite lives. One day, Yotsuba is harshly criticized by the director during a kissing scene in a TV drama. Reflecting on her lack of dating experience, she asks Kenta to "be my boyfriend for now." Kenta is confused by Yotsuba's strange statement, but he succumbs to the temptation of exposing himself at school and eventually has sex with her…