Mao, who was raped several decades ago and conceived an unfortunate child, has been raising him responsibly as a single woman. The mother and daughter have been living peaceful lives, forgetting the past, but one day, her daughter Rin comes home with a serious look on her face. She leaves her alone, thinking it's just the hustle and bustle of adolescence. But the nightmare appears before her eyes again. While Mao is cleaning, she sees a shadow behind her... a familiar tattoo on her hand. The rapist appears in front of her again and defiles her. It seems that he got her address when he "violated" her daughter...