>>89012There's not really such a thing as a villain in this show because there is no central protagonist, but all the isekaijin are huge dicks who fuck up the world for their own amusement and he definitely lives up to that. He seems to be behind most of the scheming happening this season, but it's hard to tell who all will benefit in the end since the people he screws over are morally grey at best.
It's hard to explain this show because there just isn't anything else quite like it.