*Anzu* Futaba is an idol available in THE iDOLM@STER: Cinderella Girls. She is voiced by Hiromi Igarashi. While she is currently working at an unnamed talent agency in Cinderella Girls and SHINY FESTA, she is affiliated with 346 Production in Gravure For You! and the anime.
*Umaru* is the main protagonist of the Himouto! Umaru-chan series. The word "himouto" means "dried-fish little sister". It is a combination of "himono-onna", meaning "dried-fish woman" who's proper in public but lazy at home; and imouto, "little sister", but "himouto" can also mean "worthless lazy-bum sister".