Zero

This enigmatic figure embodies a fractured existence, possessing angelic wings representing dual entities: a black form resembling Zeroboros and a white remnant of Xion. Seeking a replacement for the Guardian of End Earth in Elde, he eventually entrusts the world to Souma after meeting him between realms. Despite possessing the Twin Dragon Rings, he shared one with Souma. His past involves a desperate fight against Zeroboros' possession, leading to the sacrifice of others and a transformation that left a piece of his soul. Now, having accepted a non-human state, he observes the world, entrusting Souma with its protection.