Mother Chizuru lives with her two sons, constantly troubled by the poor performance of her younger son, Hiroaki. In an attempt to discipline him, she resorts to abnormal measures—using blowjob, full-body licking, and other sexual acts under the guise of punishment. Observing this, her elder son, Daisuke, grows jealous and resentful. Sensing his emotions, Chizuru decides to use her mature, alluring body to seduce not only Hiroaki but also Daisuke, drawing both sons into erotic relationships. An explosive, taboo-breaking story of forbidden mother-son intimacy unfolds, blurring the lines of familial boundaries in a shocking twist.