He is one of the biggest angel in heaven, being around 10 meters tall, with two pairs of wings on his back, feathers that covered some parts of his arms, neck and face, and a halo that would light up at will. When he isn't in his true form, he adapts a more human-like appearance, with golden locks, fair skin and blue eyes. Nathaniel still misses his ex demon partner despite the problems their relationship caused, but he has forced himself to move on and try to forget them, emphasis on "try".