Board Thread:Questions and Answers/@comment-36592086-20180818210959/@comment-36550774-20180818215656

NO! The overlord began its existence as a spirit of Darkness to COMBAT the FSM. (All this Oni stuff came later in the show. (Later = more canon) )). The Oni already existed before hand. Why would an Oni turn into a spirit and Be immortal? Mistake was an Oni, and she died and DIDNT become a spirit! (also the Overlord is immortal, and Oni arent immortal.)