I'll Steal Your Luck and Rewrite My Fate

Dying from a terminal illness, Lin Jiu'er accepts a devil's bargain: transmigrate into doomed cannon fodder roles and steal the heroine's destiny in exchange for life itself. World after world, she discovers these disposable side characters were never meant to survive—sacrificed to elevate the perfect female lead. But Lin Jiu'er refuses to play victim. Armed with a mysterious system and zero sympathy for protagonists, she'll plunder their luck, seduce their men, and rewrite every tragic script. Noble princess or wealthy heiress—no heroine is safe from her revenge.