Ling, the law enforcement elder of the killer organization, returned home after completing a mission and accidentally traveled to a world that had no history in his bed. At the same time, I also obtained a thousand years of skill and an eternal appearance. (Ling: I have become a demon~~~~~, thoughts: I give you your power, I screamed Qu, is there such a thing? I...) Later, Ling went down the mountain, met two male protagonists, and started her dream. (Thoughts: What a dream! Ling: How do I know, you arranged it for me. Thoughts: Hey, don't look at me like you are an idiot. Ling: You are. Thoughts: Oh, I remembered, it was to conquer the world, haha, I forgot for a while. Ling: Damn, how could I sign a contract with you, my God, kill me. God: I don't kill people)