Royal Guard

The, also known as the Zero Division.

Overview
The Royal Guard is known to promote former captains of the Gotei 13 to their ranks. The Royal Guard is a special organization that performs services for the Royal family. It has a considerable amount of fighting, organizational, and executive power compared to other organizations. They are responsible for protecting the Spirit King, the Royal Family and the Royal Palace. They are also charged with slaying Menos Grande, though the circumstances under which they do so are unknown.

Serving the royal family being the primary purpose of the Royal Guard, they don't interfere in Gotei 13's affairs and defense of Soul Society, as seen with major threats like Aizen and his Arrancar.

Known Members

 * Kirio Hikifune - the former captain of the Twelfth Division before Kisuke Urahara, promoted 110 years ago.