After My Killer Big Sister's Quick Transmigration, the Small Worlds Fall Apart?

Two female leads! Two female leads! If that's not your thing, please turn back!!!! From the female pursuer's perspective!!!!!!!!!!!! Lin Xiao was the world's greatest assassin, a legendary figure who spent her entire life navigating a world of bloodshed, with countless lives staining her hands. Cold and ruthless defined her, and missions were her whole life. But when the loneliness and exhaustion of old age came crashing over her, she chose to end her life. She thought that was the end, but instead she unexpectedly became a quick transmigration tasker. Each small world comes with its own crises and challenges. Lin Xiao's task is to quietly complete a series of minor missions, becoming an unseen force that guides each world toward a happy ending. She planned to pass through each world like a visitor, completing her assignments without leaving a trace. But the wheels of fate began to turn. In world after world, she encountered the vicious female antagonists everyone was supposed to despise. Some were arrogant and domineering, others cunning and calculating, but each of them found her way into Lin Xiao's heart without her even realizing it. Lin Xiao, who had never fallen for anyone before, gradually developed feelings for these villainesses. On this fantastical journey through the unknown, can Lin Xiao complete her missions and find love with the villainesses? What kind of ripples will the clash between a cold-blooded assassin and vicious female antagonists stir up across these different worlds? First world: aloof top student at school vs. haughty heiress Second world: award-winning actress vs. gorgeous, washed-up starlet