1boy antenna_hair arm_tattoo black_eyes black_hair blue_robe blush cloak cowboy_shot dragon_tail dragon_tattoo fate/grand_order fate_(series) from_behind hair_between_eyes hand_in_own_hair kitchin long_hair looking_at_viewer looking_to_the_side male_focus parted_lips robe sakamoto_ryouma_(fate) sakamoto_ryouma_(lancer)_(fate) see-through side_slit simple_background sleeves_rolled_up solo sweatdrop tail tattoo white_background white_cloak