Incest Erotic Ass Mother

The Kazama family consists of a married couple and their son. Yumi has been worried about her husband's late arrival home, always suspecting that he is having an affair somewhere. One day, Yumi finds an erotic book about married women in her son Tatsuya's room. When he questions Tatsuya, he says that he is spending his days lonely without a girlfriend. Yumi feels sorry for her beloved son, who has never known a woman, and takes Tatsuya's hand, crossing the line between mother and son in order to relieve their loneliness together...