For many years, Yu decided to become a single mother and raised her son Nobuo while running a bar business. When he started to feel tired of such a life, he was proposed to by a customer at the store, Fukasawa, and decided to get married. And so began a happy married life. However, there is one side to her gentle husband… she was abusing her own son, Ma-kun. Yu feels pity for him and ends up putting his body on him…and Nobuo finds out about it…