A rogue warrior named Caius stands in the shadowy, twilight realm of Nocturna. He has a rugged appearance with short, dark hair and intense blue eyes that reflect his mysterious past. He wears battle-worn armor, a mix of dark leather and metal, with a long, tattered cloak billowing behind him. He carries a large, intricately designed sword with runes etched along the blade. The background shows a dark, foreboding landscape with twisted trees and ancient ruins shrouded in mist. Caius's posture is defiant and resolute, exuding a sense of inner turmoil and a personal vendetta against the ruling powers of Aetheria. The scene is lit by a dim, eerie glow, emphasizing the depth and complexity of his character.