Becoming the Male Lead’s Villainous Sister Novel

Veteran agent Cen Lingqiu undertakes her final mission before retirement: preventing the female lead’s suicide. The female lead, beautiful yet frail and disabled, is isolated in the male lead’s mountain manor, treated as a mere stand-in. Transmigrated into the villainous older sister of the male lead, Cen Lingqiu’s task is to stop the female lead’s self-destructive tendencies. Despite the female lead's coldness, Cen Lingqiu showers her with kindness, nursing her back to health and showing her the world. However, after faking her death to complete the mission, Cen Lingqiu learns the female lead has relapsed, deeming the mission a failure. Forced to return, she dies again accidentally. Upon her third return, the female lead, now dangerously mad and possessive, hallucinates and demands Cen Lingqiu stay, threatening suicide if she leaves. The plot has spiraled out of control, with the female lead’s initial rejection of kindness evolving into a desperate, possessive love that leaves her begging Cen Lingqiu not to go, a stark contrast to her initial hatred.