2boys, ^_^, armlet, closed_eyes, closed_mouth, colored_tips, crossed_arms, earclip, facepaint, facial_mark, facing_viewer, forked_eyebrows, hair_between_eyes, happy, kimetsu_no_yaiba, laughing, letterboxed, looking_at_viewer, male_focus, medium_hair, multicolored_hair, multiple_boys, otayumaru, ponytail, red_theme, rengoku_kyoujurou, sidelocks, simple_background, smile, streaked_hair, sweat, toned, toned_male, topless_male, towel_on_one_shoulder, upper_body, uzui_tengen