I have almost no experience with women, and I don't have many friends. I was just having a boring day. One day, he was forced to have a physical relationship with Yui, a married woman at his part-time job. At first, I was just joking, but then she started saying that she was frustrated because she wasn't having sex even though she was newly married...I ended up having sex with Yui. From that day on, Yui-san and I started a relationship where we wanted each other...