@shinkazki when a demon make the summon they will receive a familiar, buuuut Iruma is not a demon then when a human make a summon they will call a demon depending of the circle they use and this case Kalego use his own circle for the students process, then when Iruma did it he summons the professor 🤣🤣🤣🤣🤣🤣🤣🤣🤣