art by as109, cu chulainn (fate), cu chulainn (fate/stay night), 1boy, solo, male focus, blue hair, gae bolg (fate), red eyes, jewelry, necklace, ponytail, long hair, weapon, jacket, earrings, polearm, leather jacket, casual, cross, leather, spear, hand in pocket, cross necklace, smile, pants, shirt, alternate costume, grin