I had almost no experience with women, and few friends. I was just spending my days feeling bored. Then one day, Yui, a married Yui at my part-time job, asked me to have sex with her. At first, I was half-joking, but she told me that she was sexless and frustrated despite being newly married... and I ended up having sex with Yui. From that day on, Yui and I started to have a relationship where we desired each other...