The star boxer reveals fixed fights, suffers retaliation, and gets into a car accident. She swaps bodies with a housewife abused by domestic violence and her mother-in-law. In the housewife's body, the boxer stops being submissive, rebukes the abusive husband, and confronts the mother-in-law. She breaks free from her marriage, gathers evidence, and fights those who set her up, achieving revenge and triumph.