after the lightning battle, diaz lived in kuruda alone, kyuo coming over every day to wash his clothes and cook for him. he also told gau that there are certain battles that can be only fought by oneself. during g's attack on the city, diaz chose to make a comeback and volunteered to protect kuruda as a vaar. together, he, scarface, and kai managed to extinguish the fire that blazed in kuruda while gau fought g.