She traveled back in time to escape her greedy relatives, using her secret healing powers to strike a deal with a powerful villain family. Her plan was simple: save their dying son, use their power for revenge, and then retire to a quiet, simple life. But she miscalculated one thing—her acting was too good. Now, her brother thinks she's an angel, the villainous family head has made her his daughter-in-law, and the husband she saved from death has become dangerously obsessed with her, refusing to sign the divorce papers she so desperately wants.