The perfect charm of Riho Fujimori's lover's sister. An extremely attractive sex movie about adultery. Riho Fujimori lived with her younger sister. Because she was busy working, she didn't have a lover. Then this older sister met her younger sister's boyfriend and fell in love. Riho Fujimori's charm is beyond compare. With just a few basic touches, that guy couldn't stand it and had secret sex with this girl. The scenes take place extremely attractive and dramatic.