arthur pendragon (fate), arthur pendragon alter (fate), fate/grand order, fate (series), non-web source, 2boys, ahoge, armor, black armor, black cape, blonde hair, cape, dual persona, fingernails, from behind, full armor, gauntlets, grey hair, hair between eyes, half-closed eyes, looking at another, male focus, multiple boys, open mouth, selfcest, short hair, shoulder armor, simple background, somano, upper body, white armor, white background, yaoi, yellow eyes