revenger in academy

Leon is a poor guy coming from a poor family he entered Victoria academy, An educational institution attended by the sons of noble families and wealthy merchants, Leon got bullied by everyone in the academy but in his second year he summoned the demon queen called Elesa, seeing a chance to get revenge from the society he faked his disappear , for the next year he trained his body and mind and changing his face and name to enter the academy as a new person calling himself "John shon", with the demon queen elesa and a new power John who was before Leon will take his revenge.