Anos, the demon ruler of oppression, has killed innumerable mortals, ghosts, and gods. Anos longs for a calm planet after a protracted period of time filled with various wars and conflicts. So he makes the decision to have a future birth.
He finds the earth to be in a fairly tranquil state when he awakens 2,000 years later. He worries, though, that his offspring have weakened drastically because the magic has all but vanished by this point. He enrolls in a school in an effort to reclaim his rightful position and look for his descendants. There, he rapidly learns that his magical power is significantly distinct from those of the other students. His skills are so exceptional that the academy is unable to fully comprehend them. As a result, Anos is categorically branded as incompetent and is viewed as an outsider by the kids.
The outsider now starts his journey to retake his position at the top of the demon race with the aid of Misha, the lone student he befriends.