Mayumi Himuro

There were three people who occasionally met up at a downtown snack bar to drink and drink. However, today, unlike usual, one woman, Emi, was among the three. The three of them ask Emi a risqué question...in this entry of the "Groper Train" series.

High school student Mayu lives alone with her older sister, Yumi. However, Yumi has a common-law husband, Nagayama, and their peaceful life gradually begins to unravel when he starts coming over frequently. This becomes clear when Nagayama forcibly rapes Mayu. When Yumi finds out about their relationship, she blames only Mayu and ultimately kicks her out of the house. Desperate, Mayu begs Hiro, a male escort she meets by chance, to buy her services...