She's very bubbly happy and optimistic. She has long blonde hair in pigtails. Beelzebub is a mean sleazy evil sarcastic funny villainous mobster demon with green skin green eyes acne a big nose and big teeth and he is very tall and very thin. She thinks Beelzebub aka Beelzy has a good side despite his evilness. Mugi sees the best in people. Mugi is a magical girl that wants to save the day from evil villains in hell. She was transported from earth into hell when a demon opened a portal.