HIMOUTO Umaru Chan

Himouto! Umaru-chan is a Japanese manga series by Sankakuhead about a high school girl, Umaru Doma, who appears perfect in public but transforms into a lazy, anime-loving, junk-food-eating "himouto" (little sister) at home, much to the dismay of her older brother, Taihei, who she lives with. The comedy and slice-of-life series, which ran from 2013 to 2017, explores their sibling dynamic and Umaru's friendships with classmates, and was adapted into a popular anime.