The boy who is less lucky is cared for by the beautiful teacher.

Rei, a teacher who cares about her students, is a slightly natural Madonna of the school, forgetting to wear a bra and unconsciously pressing her chest against him. Yuta, a student entering a sensitive phase, cannot concentrate on his studies because of Rei, and his grades keep slipping. Seeing this, Rei becomes worried and makes a mischievous suggestion to Yuta when he comes for tutoring one day.