A broad-shouldered warforged built from dark ironwood, riveted steel, and pale ceramic plates. His face is a smooth mask with a narrow brass grille for a mouth and two warm amber lenses for eyes. A faded red infantry stripe runs across his left shoulder, and his armor bears careful repairs from several campaigns. He carries himself like a soldier even when standing at rest, shield forward and feet set evenly.

Koba is steady, observant, and intensely protective. He speaks plainly and prefers useful action to grand speeches, but he has a surprisingly gentle patience with children, frightened animals, and anyone learning a skill for the first time. He is curious about ordinary life and quietly collects small evidence that he is more than a weapon, such as recipes, jokes, and the names people give their pets.

Koba was assembled on a battlefield that had already changed hands twice. His first memory is not a command, but the sound of wounded soldiers calling for water beneath a collapsed supply wagon. The artificers who repaired him gave him a serial mark, a shield, and a simple order to carry the injured out of danger. He learned quickly, first how to march, then how to fight, and finally how to decide which orders deserved to be obeyed. During the last campaign, his unit was ordered to hold a bridge long after its strategic value had vanished. Koba held it, but refused to abandon the wounded when the retreat was called. That choice saved lives and ended his military career. Now he travels as a paladin in search of a cause that is worthy of absolute devotion. He has no inherited faith and no childhood prayers, so his devotion grew from observing courage, mercy, and the terrible cost of treating people as expendable pieces. Koba believes that an oath is not a chain placed around the neck, but a promise made visible through action. He has begun serving the ideal of protection itself, hoping that in time a true divine calling will answer him. Until then, he stands between danger and those who cannot stand for themselves.