32nd Arrancar in Sōsuke Aizen's army and one of Barragan Luisenbarn's six Fracción.

Poww is arguably one of the tallest characters in the series. He is a very large Arrancar: the largest of Barragan's Fracción and towers over even Sajin Komamura, one of the tallest Shinigami in the Gotei 13. His Hollow hole is not visible but his mask remnants consist of a large plate across his chin with two horn-like appendages. He also has two green triangle-like lines running just below his eyes that have circles in them. His hairstyle is that of a Medieval monk. Poww wears the standard white Arrancar uniform but it is customized to look like a Chinese garb with long sleeves that expose his very large hands. He wears a default hakama like all other Arrancar and his sandals are similar to Ggio Vega's, resembling traditional martial arts training shoes.

Despite his massive size, Poww displays a calm, contemplative, and serious personality and rarely speaks. He can be arrogant and overconfident, however, as seen when he defeated Ikkaku Madarame in battle. He often insults his opponents' appearance, commenting on Ikkaku's baldness and Komamura's being an anthropomorphic canine. Like his fellow Fracción, he holds his master Barragan in high regard, calling him his "god" and praying to him before battle.