onasu (sawagani),fate/grand order,fate (series),romulus quirinus (fate),1boy,animal ears,armor,blue hair,breastplate,chibi,dark-skinned male,dark blue hair,dark skin,earrings,energy,floating,full body,glowing armor,golden wings,gradient hair,highres,jewelry,long hair,male focus,multicolored hair,purple hair,red eyes,solo,t-pose,tail,transparent background,very long hair,wings,wolf boy,wolf ears,wolf tail