1boy, 1girl, adjusting eyewear, black choker, black shirt, blonde hair, brother and sister, brown bag, brown coat, brown vest, choker, coat, long sleeves, looking at viewer, multicolored hair, open mouth, pink eyes, pink hair, project sekai, round eyewear, shirt, siblings, simple background, skunlv, streaked hair, sweater, tenma saki, tenma tsukasa, turtleneck, turtleneck sweater, v, vest, white background, white sweater, wing collar, yellow eyes, zozotown