doma taihei, doma umaru, himouto! umaru-chan, game asset, non-web source, official art, self-datamine, 1boy, 1girl, black-framed eyewear, black eyes, black hair, black jacket, blonde hair, blush, brother and sister, closed eyes, closed mouth, collared shirt, glasses, hands on another's shoulders, hat, himouto! umaru-chan himouto ikusei keikaku, hood, hood down, hoodie, jacket, long hair, looking at another, newsboy cap, open mouth, outdoors, portrait, red hat, red hoodie, semi-rimless eyewear, shirt, short hair, siblings, smile, standing, sunset, under-rim eyewear, white shirt