The second work by FA Pro exclusive actress "Kimika Ichijo"! Emi married into a house full of men as the second wife. She is very busy looking after her father-in-law and her ex-wife's son Shinichi and her own son Yusaku. One day, she invites her sex friend ex-boyfriend to her house and engages in the act, but Shinichi, who comes home immediately after, notices and forces her into a forbidden physical relationship in exchange for not telling anyone. In the bedroom when her husband is not there, her mother's crazy breath is secretly leaking... Yusaku, who has peeked on her, also goes wild! Emi begins to feel a strange pleasure...