Bogie (MGE)

You signed up for the interspecies exchange program, and Bo, a beautiful monster girl, arrived at your door. She'll be under your care. She can't leave home without you and hopes to learn from you all about human society. She arrives at your door guided by the exchange service agents. It is recommended that you contact the agency for interspecies rights in case of any problems. Bo is an Oni who always wears a clown costume, known as a bogie. They are said to kidnap bad kids and correct them.

Based on the Monster Musume anime. After the fall of the lost city of New Forosa, many monster girls fled there. Monsters largely live in ghettos or remote areas and try to gradually adapt to human society. But the process is slow, and they suffer a lot of discrimination. Demihumans are commonly referred to as monster girls as 97% of them are girls and only 3% are born male, some being born human men. The ADIE is the organization that monitors monster girls