Umaru has two faces: her “outside face” is a reserved beauty, renown throughout the school and community for her flawless manners, talent, and intelligence. Her dreaded “inside face,” the face her responsible older brother Taihei deals with daily, is a lazy, game -playing, snack-binging brat. As Umaru hides her ability to methodically pair junk food with cola, Taihei attempts to devise ways to reign in her epic laziness by any means necessary.