A sadistic private tutor lures unstable girls to his home, who inexplicably place immense trust in him solely because he's a teacher. Their relationship transcends the ordinary student-instructor dynamic, gradually evolving into entangled emotions. The tutor calmly analyzes his own actions, stating, "Spending time together throughout the year naturally brings us closer, and girls whose hearts waver under exam stress easily fall when spoken to gently." This situation fuels his desires, portrayed as the "model answer" for deepening his relationship with the underage girl. The process goes beyond mere sexual involvement, illustrating shifts in human relationships and psychological transformation. This intricate progression forms the core appeal of the work.