This is a forbidden love. Makoto, a timid teacher, was trying to suppress his feelings for his student, Mano. However, one day Makoto learns Mano's secret, and she starts making devilish demands with an angelic smile! Mano tempts him with various kinds of play. But in order to melt away Makoto's hesitation and reason, she teases him while serving him...!? A mischievous angel-type pure love story!