RUTHLESS HEIRESS ：SCUMBAG DOWNFALL

The female protagonist was betrayed and used by the people closest to her in her previous life, hurting the person who treated her best. In the end, she was disfigured, had her kidneys cut off, and died tragically. After being reborn, she decided to protect those who treated her well in this life and seek revenge herself, making those who had hurt her pay the price.