Link, the hero who saved the world, was dragged into another world by a mysterious force the moment he killed the Demon King. When he opened his eyes, he found that he had become the new Demon King. When the memory of the hero collides with the demon king's body, and when the holy sword skills turn into dark magic, he has to juggle between the Holy See's pursuit, the demon's schemes, and system tasks. With the instant noodle fan's complaining skills in his left hand and the black flames that can burn down a city in his right hand, can this most crooked demon king in history find the heart of a brave man and at the same time unravel the cruel reincarnation of "the demon slayer eventually becomes a demon"?
