SONE-153: My girlfriend's best friend and acquaintance, Nishiyama Aika, is a famous AV actress known as Kawakita Ayaka. I have masturbated to Kawakita Ayaka's work. One day, I saw my girlfriend cheating on me and was at a loss as to what to do, when Aika called out to me, and we suddenly became closer and started a relationship. The days of having sex with a popular AV actress under the same roof were the best period of my life. But as I was drowning in my carnal desire, I began to forget that she was just a girl...