Hinako plots to make her beloved teacher hers alone. Though the teacher usually maintains a strict demeanor, he forgets he is married and whispers seductive words into Hinako's ear. Captivated by his words, Hinako visits his home after school. There, the two give in to their mutual desire, building an intensely passionate relationship. Driven by her desire to take the teacher away from his wife and claim him as her own, Hinako's lust grows stronger, deepening their forbidden bond.