Her deceased husband was a yakuza and Miyuki was once called a sister.However, she chose to seal everything for the sake of the only memento she had left behind, Taichi, and live in peace.Since then, more than ten years have passed, and Taichi, who has reached puberty, feels the same way, whether it is because he resembles his father or because he is a single parent.One day, Taichi's gang sees Miyuki's tattoo on her back, threatens her, and rapes her.Miyuki endured humiliation to keep her secret, but eventually Taichi found out about her past upbringing.After learning about Miyuki's feelings for her, Taichi decides to live seriously, but...