Miki heads to her sister's couple's house to introduce her fiancée to her sister, where her brother-in-law catches her eye, but she unknowingly seduces her brother-in-law. Raped by her brother-in-law while stealing her sister's eyes. Then her days of humiliation. She is threatened by her brother-in-law and urged to sexually process her mother's remarried partner, and is humiliated even in front of her fiancée. However, she continues to be fucked, and changes occur in her Miki's feelings.
