Teacher Morooka, nearing retirement, suffers a sudden attack from a pre-existing medical condition while counseling his student Kurumi. As she rushes to support him in concern, he becomes overwhelmed by uncontrollable lust and inadvertently gets an erection. Witnessing this, Kurumi tries to listen to his desperate excuses but ultimately ends up in a struggle, hitting her head and losing consciousness. The arrival of a fellow teacher at the scene pushes the situation into even greater chaos. Shockingly, it is revealed that this school harbors a dark secret—teachers have been engaging in inappropriate relationships with female students.