1boy, ass, black_eyes, black_hair, boxers, facial_hair, from_behind, goatee, golden_kamuy, hair_slicked_back, hair_strand, kneeling, looking_at_viewer, male_focus, male_underwear, no_pants, ogata_hyakunosuke, purple_male_underwear, ri_(ri_kaos21), scar, scar_on_cheek, scar_on_face, short_hair, smile, solo, stitches, stubble, toned, toned_male, undercut, underwear, undressing