In order to get her only son, Hiroshi, recommended to her late husband's alma mater, Eriko, a mother, approached Kagawa, the teacher in charge of her son. "Your cooperation is absolutely necessary. I'll come to your house tomorrow and come up with a good solution." Eriko was confused by Kagawa's gripping gaze, but she had no choice but to obey him in order to get a recommendation. The next day, Kagawa came to the Miura house as promised, and forced Eriko to go, after convincing him that it was a give-and-take arrangement.