Rule 34 Dev - 140wwwei 2boys arm_tattoo ass back black_nails blood cannibalism completely_nude fushiguro_megumi gore hand_on_another's_back holding_scalpel jujutsu_kaisen knife male male/male male_only no_visible_genitalia nude_male partial_male ryoumen_sukuna_(jujutsu_kaisen) sadism sadist sadistic scalpel tattoo|8093436240