1boy, bara, bare_pectorals, blush, brown_hair, content_rating, cover, cover_page, doujin_cover, facial_hair, goatee, large_pectorals, long_sideburns, male_focus, mature_male, mizuki_gai, muscular, muscular_male, nipples, open_clothes, open_shirt, original, pectorals, short_hair, sideburns, solo, tentacles, tentacles_on_male, thick_eyebrows, upper_body