After accidentally being sent by the System to a world of anime where he can't go home unless he plays soccer and defeats the protagonist to become number one in the world, the villain figures that, based on the rules of the volleyball and running worlds he's experienced, all he needs to do is act the opposite way. So the villain confidently takes the field, trash-talks and looks down on people, then puts them down and mocks them off the field. What the heck! The sly protagonist seems even more villainous than the villain this world officially recognizes. So who's the villain here? Is this right? It can't be. And why can't he get out of becoming number one in the world? Damn soccer players.
Theme: He didn't bother being a proper villain before, and now the protagonist has caught him and won't let him escape