The Touka-san who lives in the opposite room seems like a quiet liberal arts girl at first glance. But... every time I see her voluptuous body through the window opposite, it troubles me. That day was different from usual... she started masturbating as if to invite me... Bold I-cup breasts pressed against me, forced creampie, while being teased with shame by the introverted, perverted liberal arts older sister, I was treated like a slut!