1boy, bare_legs, blonde_hair, chalk, chalkboard, forked_eyebrows, holding, holding_chalk, holding_paper, kimetsu_gakuen, kimetsu_no_yaiba, male_focus, marotoskin, multicolored_hair, necktie, no_pants, open_mouth, paper, red_eyes, red_hair, red_necktie, rengoku_kyoujurou, shirt, smile, solo, watch, white_shirt