I've finally got the chance to live alone since starting university. I was supposed to be able to enjoy my free time masturbating without being disturbed by anyone. But for some reason, my female friend Nozomi, who has a boyfriend, comes to stay over at my house every night. At first I thought she was just being whimsical, but the weekend passed and she still hadn't come home. Her carefree smile, her overly defenseless pajamas, her meaningless body touches... Every time I tell myself that I didn't mean it, something inside me stirs. But nothing's happening. I can't wake her up. Late at night, while she's asleep, I start secretly masturbating, but she finds out and we end up having sex. I skip school over and over again... "Can I stay over again tonight?"... I no longer felt like I could refuse.