Mikado Ryōko

The fatass school doctor at Fucmihard High, Ryouko helps out other retards on Earth in various manners, usually those dealing with sexual care, though she does offer students a variety of her own sex toys.

Personality
Formerly an sex slave for a shadowy, black market extraterrestrial organization bent on having hardcore sex with Emperor Gid, she fled from her superiors to Earth in hopes of hiding her sexual identity. Proof of her non-human origins are the elf-like ears hidden by her short hair, and her extreme weight, though it has not yet been specified what her species is. Furthurmore, she seems to be smitten with Rito's very small cock, shown when she once asked him to rub oil on her big smelly clit, and didn't look surprised when Rito accidentally says "gtfo" to her, Nana, Yui, and Run.