A story about two mothers and children. My son, Tatsuo Asamiya, who goes to a university in Tokyo and lives alone. Brothers Yohei and Yasuhiro Tanihara and their aunt Yuki Tanihara live with their mother, Ryoko Asamiya, due to the renovation of their house. In other words, he lives in Tatsuo's parents' house. One day, Tatsuo took her home as originally planned, but he couldn't help but be sexually aroused by her mother. I have sex infrequently. At the same time, Yasuhiro witnesses his own mother Yuki and Yohei having sex, and becomes jealous of her enviable relationship.
