The exclusive actress "Otowa Sakino" from Prestige is my cute little sister! My sister, who just graduated, barged into my house where I live alone. It seems she will be commuting to university from here. My meddlesome sister keeps pushing into my private life and even found out that I'm still a virgin… That night, I drank too much and passed out. When I woke up, my sister was naked, straddling me, and vigorously moving her hips! As I panicked, she provoked me with the word "virgin" and I gave in, going all the way… Day by day, my sister's actions escalate, building an unusual relationship that transcends the sibling boundary!!
