Wife Minori lives with her husband and his older brother. Unlike the husband, the brother is serious and kind. One day, the husband hits someone with his motorcycle and flees the scene, but the brother makes him turn himself in. The brother has been seeing Minori as a woman for some time. Minori notices his gaze and they are drawn to each other, ultimately giving in to their desires. Minori and her brother-in-law's forbidden life together begins.
