A woman realizes she has transmigrated into a novel as Princess Lily, who is destined to be killed by Hank, a powerful Demon King. Facing her grim fate, she decides to defy the story by seeking a pact with Hank, despite warnings about his violent past and the disloyal nature of night hunters. Confident in a secret advantage, she boldly challenges Hank to either kill her or accept the contract. When she refuses to choose, Hank makes the decision himself, sealing their pact and altering the destined sequence of events.