Miki heads to her sister-in-law's house to introduce her fiancée to her sister, where she notices her brother-in-law, but unknowingly seduces her brother-in-law. She steals her sister's eyes and is raped by her brother-in-law. Then the days of humiliation. She is threatened by her brother-in-law and is urged to sexually treat her mother's remarriage partner, and is humiliated even in front of her fiancé. However, the crime continues to occur, and Miki's emotions change.