Kai Renald Roulle

Kai hails from a lineage of weapon artisans and stands as one of the "Three Indestructible Warriors." Possessing exceptional skills in both forging and mechanical craftsmanship, he fell in the Battle of Renril before being resurrected by Fushi in the modern arc of Season 3. Rational and composed by nature, he speaks little but carries an unshakeable inner resolve, serving as Fushi's most dependable source of technical support and logistical backbone in contemporary society.