After Becoming a Doomed Side Character, I Just Want to Survive

Leng Qiuxiang died after collapsing from three straight months of working overtime on a 24/7 schedule. When she opened her eyes, she had become the atrocious supporting female character who forced herself on the crown prince, abused and humiliated him, hooked up with her lover, and was ultimately chopped into pieces and fed to dogs. Worse still, the moment she arrived, her lover was flirting with her, while the future mad crown prince, who would turn dark and slaughter scumbags, lay on the bed, glaring at her back with murderous eyes.