1boy, ass, bara, between_buttocks, biggym, black_fundoshi, black_hair, blush, ei_(marutendon), feet_out_of_frame, from_behind, fundoshi, grin, hachimaki, hands_on_own_hips, headband, japanese_clothes, long_sideburns, looking_at_viewer, looking_back, male_focus, muscular, muscular_male, original, short_hair, sideburns, smile, solo, thick_eyebrows, topless_male, triceps, undercut