Kanou, Ashido

狩能雅忘人

Ashido is the enigmatic Shinigami from Bleach who made his debut in episode 148. Little is known about him, aside from his name and the fact that he remained in Hueco Mundo to eliminate Hollows before they could reach the real world, thereby reducing the workload for other Shinigamis.
He arrived in Hueco Mundo because he and his squad were pursuing a group of Hollows. They tracked them into their territory. Upon arrival, they continued fighting until Ashido was the sole survivor. He wears a Hollow’s mask because it belonged to the last Hollow his friend defeated before dying. The mask conceals his handsome face but aids him in combat; it deflects Hollow Cero blasts and serves as an effective shield.