There are so many charismatic characters in this manga that they could have already released a whole series of spin-offs and made it something of a full-fledged franchise. Moreover, in a variety of genres, ranging from RPG-like fantasy adventures to buddy movie-like comedy with bromance gag humor.Just make a spinoff about them. Sousou no ubel
Probably still Serie.so now I wonder who is actually the strongest mage in this universe