乙女の狂恋 ～悶え堕ちゆく純情～

Yamae Isamu enjoys fooling around with women.
One day while watching a classmate, Hanamaki Shizuku being bullied, he intervenes and helps her.

Shizuku wants to show her gratitude towards Yamae for saving her.
Yamae sees Shizuku as an easy target and invites her on a date. He takes Shizuku to a hotel and has sex with her, he thinks he has found a convenient sex slave who will do anything he says.