2boys, black_jack_(character), black_jack_(series), cigarette, closed_mouth, collared_shirt, eueunge, graphite_(medium), greyscale, hair_over_one_eye, holding_finger, korean_text, long_sideburns, long_sleeves, looking_at_another, male_focus, monochrome, multiple_boys, photo_(medium), ribbon, rock_(character), scar, scar_on_cheek, scar_on_face, severed_finger, shirt, short_hair, sideburns, simple_background, smirk, smoke, smoking, sunglasses, sweat, thick_eyebrows, traditional_media, upper_body