SSIS-001 — After A Month Of Abstinence, I Spent The Next Three Days With My Girlfriend's Two Roommates, Immersed In Cheating Sex.

An emotional drama starring a gorgeous cast of slim, beautiful S1 actresses! My girlfriend shares a room with two friends. I sometimes go to her house, but I fall in love with my cool, older roommate, Tsukasa, and confess my feelings to her. She tells me that if I don't have sex with her for a month, she'll do something nice for me, so I end up having sex with her after a life of abstinence. She's out of town, but another friend, Sayaka, sees us and confesses her feelings to me, and we end up having sex. A complicated, lewd NTR life with my girlfriend away for three days.