Miki decided to live alone with her husband's stepchild, Takashi, who decided to leave her husband who remarried. Because Kei was in a difficult age, he didn't open his heart to his mother-in-law, Miki, and Miki was heartbroken. One day, an incident occurs in which Kei assaults a classmate, and the situation becomes even more serious. After that, in an interview with her homeroom teacher, Miyagawa, Kei vented her dissatisfaction, and Miki, who became desperate, overlapped her skin with Miyagawa as if clinging. With that as an opportunity, something that had been tense inside Miki suddenly broke down...
