PKPL-052 Amateur sex friend documentary: Cheating college girl Yuna comes to see me without her boyfriend knowing

Let me introduce my sex friend. Yuna is a college classmate whom I met at a Manga Study Group drinking party and ended up having sex with while drunk. After we had sex, I found out that she actually had a boyfriend. Apparently, the first time we had sex, it was the day she had a fight with her boyfriend, and since then, she contacts me whenever they fight. She seems to enjoy her part-time job, her boyfriend, and the occasional affair. I'm lucky.