Satoru, who after death reincarnated into slime in a new world for himself and is now known as Rimuru, managed to travel along the way, find many friends among monsters, and even founded his own city. Rumor about the new ruler of the forest spread quickly, and now the kings of human nations have turned their gaze toward him. The appearance of a new player on the political map inevitably brings its adjustments. What awaits Rimuru after contact with humans in the new world? We will find out in the new season.