2boys, ?, abs, alternate_costume, alternate_pectoral_size, bara, bare_pectorals, belt, chest_hair, collared_shirt, confused, glasses, greyscale, kekkai_sensen, klaus_von_reinhertz, large_pectorals, long_sideburns, male_focus, mature_male, monochrome, multiple_boys, muscular, muscular_male, mutton_chops, navel, navel_hair, nipples, nore_(boosuke), open_clothes, open_shirt, pectorals, semi-rimless_eyewear, shirt, short_hair, sideburns, sketch, smile, steven_a._starphase, stomach, tusks, underpec, upper_body