Hiragishi reunites with Izumi, the classmate who bullied him 20 years ago. While Hiragishi's own life has been miserable, Izumi has built a happy single-father home with his beloved adult daughter Mai. Ashamed that the old trauma still haunts him, Hiragishi decides to repay everything Izumi did to him. He breaks into their home and targets what his enemy treasures most, subjecting Mai to merciless forced deepthroat and sexual assault in a cruel, misdirected revenge plot.