Himouto! Umaru Chan
Himouto! Umaru Chan is a Japanese manga series by Sankaku Head. Umaru Doma is a high school girl, living with her older brother Taihei. At school, Umaru appears to be the ideal student with good looks, top grades and many talents. However, she transforms into a kid-sized layabout and spends time at home with hobby addiction, much to Taihei's dismay. Throughout the series, Umaru uses her alternative personality to make friends with others.