Kazuma is a Shinigami, and one of the few remaining with the strength needed to fight against Averian and his army. The young, boyhood innocence he was once known for vanished as he watched his world torn apart by hollow and Arrancar, and by the death of his mentor, Kusaka Kori, and the subsequent disappearance of his idol, Kenji Hiroshi. Kazuma is a Captain among The Ryu Order, alongside his older brother and his friend, and stands in stoic defiance to Averian's attempts at domination.