The same birthday as the wife of Yuri and Komaku nippon. Yoshinobu's nephew gives Yuri an erotic underwear that should be sent to her wife. And when he sees Yuri wearing his underwear and starting a masturbation, Yoshinobu's greedy tag is off. "It's really frustrating, isn't it, mother-in-law?" Yoshinobu persistently seeks Yuri's explosive milk in places where his family can not find him.