Slime Musume wa Shinshokushitai!

Synopsis

A slimy interspecies cohabitation comedy between a gloomy high school boy and a slime girl!! Midori, a slime girl from another world, infiltrates human society under the orders of the Demon King, and she takes up residence in the home of the downbeat high school boy, Hikage Okuma...? (Source: Akita Shoten, translated)