Liam Kirby carries the mission of ensuring the continuation of human civilization, yet he is mistaken by the vengeful dark heroine, Elise Spencer, as a demon. Under completely misaligned perceptions, the two form a partnership where one is seeking peaceful diplomacy, while the other intends to wield demonic power for revenge. What follows is a chaotic clash of science and mysticism, fueled by hilarious misunderstandings, as they attempt to remake the world.