When Mayumi faces the restroom at midnight, son, Masayuki of the Giri looks in a figure of the So from Sukima. The Mayumi begins Masturbation to show it off to him. Masayuki plays with it between crotches, too, and two people reach the top together. Mayumi to have the smile that is Youen in when I return panties to Masayuki who is going to leave. At a moment of the So, Masayuki woke up in a study room. He had nocturnal pollution….