Transmigrate into a Book: The System Is Keeping Me from Becoming a Villain

Ling Yuran unexpectedly transmigrates into a novel called The Immortal Path of the Phoenix, where she becomes one of the story's villains. Her golden finger System tells her that she can return to the real world as long as she follows the plot. But her System is a White Lotus Development System, for crying out loud!

Resigned to her fate, Ling Yuran sees her younger brother, another villain who always has her back, grow up into a lovestruck fool for the heroine. While he's still young, she puts an arm around his shoulders and sighs. "My foolish little brother, the most important thing for a swordsman is to stay away from feelings. Page one of the sword manual: kill your wife to attain enlightenment. Page two: slay the one you love..."

How do Ling Yuran's useless System and her lovestruck little brother keep her from following the villain's plot...