Tachi, Kitano, and Miyu became close friends in college, with Tachi and Miyu dating since the previous year. When Miyu suddenly announces that she is leaving him, a suspicious Tachi plants a hidden camera in her room and discovers her having tender sex with his best friend Kitano. Devastated by the betrayal, he also finds himself unable to suppress the NTR desire awakening inside him. Over one week, the twisted love triangle brings together voyeuristic cheating, sexual denial, betrayal, and revenge, culminating in Tachi pounding Miyu and giving her 20 breeding creampies just before the breakup.