My university classmate, Momoka, is a proud girlfriend who also does reader model activities. It's a miracle that she's going out with someone like me. One day, her club friend Oikawa invites her to drink. She wasn't really into it, but because I was worried, I decided to go along. When she became the target of an erotic game, I couldn't do anything since I was hiding our relationship. I fell asleep and when I woke up, she was having sex with Oikawa and the others…
