The Villainess Who Saved the Devil by Mistake

She wakes up in a cultivation novel—not as the heroine, but as a throwaway side character destined for a tragic end. One impulsive act of kindness changes everything: she saves the story's future villain, a man feared by all. To the world, he's ruthless and cold. To her, he's tender, devoted, whispering promises of eternal love. 'I'll never betray you,' he swears. She believes him. She vows to stand by him through life and death. But when his promise shatters, so does her heart—and she walks away, leaving behind the devil who once called her his salvation.