Kanna is living a married life where she and her husband are drifting apart. At this timing, her long-time female friend, Jun, starts to pursue her, leading Kanna to have a lesbian affair. Unlike her rough husband, Jun is soft and gentle, and as they meet several times, Kanna begins to feel a sense of fulfillment that she never experienced with her husband. Kanna's heart is swayed by this presence that fills her loneliness, but her husband finds out about the lesbian affair... Is he displeased with the way they protect each other? In a fit of rage, her husband begins to force himself on Kanna right in front of Jun.