1boy, 1girl, ahoge, aya_carmine, belt, cigarette, collared_shirt, cowboy_shot, floating, formal, hands_in_pockets, hitomi_hirosuke_(sayonara_wo_oshiete), long_hair, looking_at_viewer, looking_down, millipen_(medium), monochrome, necktie, nude, photo_(medium), sayonara_wo_oshiete, shirt, simple_background, sketch, sugamo_mutsuki, suit, traditional_media, very_long_hair