在我和我心爱的丈夫住在这所房子里，我每天都有外遇。- Yui Hatano

Yui is having an affair. While her beloved husband is away on business, she actually invites her lover into their home - their very own love nest. The entrance, the living room, and the bedroom... In the very places where she spends her daily life, she reveals her true nature, which she never shows her husband, and comes wildly from the extraordinary pleasure without even a hint of guilt...