This is a forbidden love. Timid teacher Makoto tries to suppress his feelings for his student Mano. But one day, Makoto finds out Mano’s secret, and with an angelic smile, she starts making devilish demands! Mano seduces him with various types of play. However, in order to melt away Makoto’s hesitation, she provokes him into serving her…!? A pure love story of a devilish angel!