My mother's best friend, Reina-san, came over to play. It seems like they're going to have a drinking party at our house today. Instead of my mother, who has to prepare for the feast, I ended up being Reina-san's conversation partner. Being completely inexperienced with women, I was nervous but tried my best to make small talk... Seeing Reina-san, who is so beautiful that she doesn't seem like my mother's friend, I couldn't help but have some inappropriate fantasies...