DHLD-004: 여대생의 여동생의 여자 회에 친구가 내 집에 묵으러 왔다! 존재로 유명한 여동생의 친구들은 매일 밤 「동정」인 나를 덮쳐 모두의 성녀●로 했다!

A friend came to stay at my house at the girls' party of my female college student's sister! My sister's friends, who are all famous for being, attacked me who was a "virgin" every night and made me everyone's sex slave!