Hello everyone. What I'm looking for is a manga about a grand and mighty demon king who is fed up of his position and regularly visits the human realm to relax as a normal, powerless boy. But then a young demon girl discovers him and he starts panicking about what she might and might not know. There's no legit plot as far as I could tell. Thank You. (If there are any other funny mangas/novels about a supreme Overlord having a commoner second life you know of, please let me know. Not a reincarnation or anything either. But trying to live in both lives at once and the experiences in one makes him do stuff as the other. Evil God/The Other Side of the Last Boss is a close example.)