Yui, a sexless married woman, has never been able to let go of her womanhood. If she continues to wither away like this... her feelings grow stronger day by day, and she finally decides to work at the Eterna Kyoto store, a brothel for married women. As she has sex with various men, Yui's sexual desires awaken, and she blossoms more and more erotically and beautifully... Today, without the store's knowledge, she spends her days having creampie sex.