Hozai accompanied Castiel and Kelvin on a mission to defeat Prince of HellDagon and retrieve Kelly Kline. The three angels infiltrated Dagon's hideout and were immediately confronted by Dagon.
Hozai tried punching Dagon, serving mostly as a distraction while Castiel tried to shoot and kill Dagon using The Colt. However, Kelvin instructed Castiel to use this opportunity to head into the basement, where Kelly was. Dagon used Molecular Combustion to cause Hozai to explode and proceeded with capturing Kelvin. Unfortunately for her, Castiel got away, taking Kelly with him to the Heavenly Portal.
Powers and Abilities
Angelic Possession - Hozai required a human vessel in order to walk the Earth. He also needed the vessel's consent.