Maou Beginner no How to Sekai Seifuku

Joshua, a demon tribe who entered the Dama Academy to succeed the fallen family business. Waiting for him to dream of becoming a demon king who was redeemed by everyone was the cold wind of the world !? A slime pharmacist, a friend named Plum, Joshua became a severe reality with his business knowledge as a weapon Confronting a different world business comedy that won't lose out!
(From google translate, I'll provide a better one later)