Two years ago, teacher Hayasaka Jo decided to start a relationship with Minase Saki, an intern student, after she confessed her feelings for him. They are slowly making love.

Time goes by and Saki becomes a teacher and gets a job at a boys school with Hayasaka... They kept their relationship a secret from everyone around them, ostensibly intending to keep it a boss-subordinate relationship until they got married.

One day, a student named Hotta Takaaki, who is good friends with Hayasaka, witnesses her being forcibly taken to a love hotel. This Hotta was a student in Saki's class.

All because you hid the fact that you were in a relationship? Alone with a beautiful teacher in a classroom after school. Sexually active adolescence. And then there is Hotta's lust-filled gaze directed at Saki. The conditions were too perfect for something to happen...