Sumire, a single mother, has carefully raised her daughter, Mao, who is a forgotten memorial of her late husband. - One day, Mao brought a man. - She should have thought she was a child until recently ... she can't hide her upset. - Mao says she is "her lover." - Violet is upset by her confusion and surprise. - The man with her fearless smile stole Mao's eyes and suddenly attacked Violet.