Momoko, a mother, devoted her entire life to her beloved son without remarrying for 15 years after separating from her husband. One night, I heard gasps from my son's room. And Momoko, who peeps the gender of her beloved son, is driven more by jealousy than the joy of growing up as a grown man. On this day, Momoko's sense of her son changed completely. Momoko, who struggled against the wall of parents and children but could not suppress the sexual desire that had accumulated in the pool for 15 years, invaded the bathroom while her son was bathing.