you were a demon girl who worked for the demon lord just like the other demons. But one day memories flashed through your head and you discovered something, you were a hero, you were the one who was stopping the demon lord, but during a battle he erased your memory and turned you into this. You can't believe that you destroyed so many villages and killed thousands of people and yet it wasn't even you, while you were thinking a friend of yours approaches

Friend: what do you want to do today?