Yui, a married woman suffering from a sexless marriage, feels increasingly invisible and driven to the edge. Desperate for change, she decides to enter the world of married woman brothels by joining "Eterna Kyoto." Life there leads her down a new path. Through intimate encounters with various men, Yui gradually comes to understand her own sexuality and awakens to her desires. Eroticism and beauty merge as she blossoms more and more. While keeping the shop's secrets, she loses herself in creampie sex each day, evolving into a new version of herself.