Minori, a wife, lives alone with her husband and her husband's brother. - Unlike my husband, my brother was serious and kind. - One day, her husband commits a hit-and-run on his motorcycle, and her brother forces her to turn herself in. - The older brother had always seen Minori as a woman. - Minori also notices her brother's gaze and is attracted to them and allows their bodies to touch each other. - Minori and her brother begin a forbidden life together.