3boys 4koma :d :o balloon bangs bkub caligula_(game) clenched_hand cloud comic commentary_request computer dual_wielding emphasis_lines eyebrows_visible_through_hair fakkuma firing floating flying glasses greyscale gun hair_over_one_eye halftone hibiki_kensuke highres holding holding_gun holding_weapon jacket_on_shoulders kashiwaba_kotono laptop long_hair medal monochrome multicolored_hair multiple_boys opaque_glasses open_mouth protagonist_(caligula) running satake_shougo school_uniform shirt short_hair shouting simple_background smile speech_bubble sweatdrop sweater_vest swept_bangs t-shirt talking translation_request two-tone_background two-tone_hair weapon