The first release from the NAGIRA label. This is the story of a housewife who didn't want an affair and one who did. Yuri (Yui Hatano) and Tomoko are ordinary housewives living in an apartment. Meanwhile, career woman Mami (Ria Kashii) is busy every day but continues to have affairs with Tomoko's husband. Meanwhile, Yuri and Tomoko go to a pub and get to know the owner. Yuri's Kokoro flutters when she accepts the invitation... Once she has experienced pleasure, she falls into it despite her hesitation.