After Becoming the Villainess, I Saved the Demon King

She transmigrated into the villainous heiress who abused the future Demon King. According to her original fate, she will die under his revenge, while he will personally destroy the entire world. To rewrite the ending, she has no choice but to draw close to the man who hates her most, healing his broken heart. But as fate begins to deviate from the prophecy, she discovers that a bigger conspiracy is hidden behind this apocalypse, and the real enemy has only just revealed themselves...