Heartbroken after being dumped by my girlfriend, trying to heal my wounds... I had a lewd encounter with my stepmother in the bathroom. (Isshi Momoko ROE-101)

Ryota, who lives with his father, is currently depressed after being dumped by his fiancée. In this situation, his father is unable to introduce him to his new fiancée, Momoko. After discussing it with Momoko, he decides, "I'll comfort him," and they begin living together as a trio. Even after starting this new life, Ryota remains closed off emotionally. However, one day, he bumps into a naked Momoko in the bathroom. From that day on, Ryota regains his spirits, and Momoko's physical contact with him becomes increasingly intense each day…