Royal Guard

The, also known as the Zero Division. is an organization which is dedicated to protection of the Spirit King, the royal family, and the royal palace.

Overview
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 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 They are known to do whatever is required by order of the Spirit King.

The Royal Guards authority supersedes the authority of all within Soul Society.

History
The history of the Royal Guard is not commonly known due to their status as a secret organization.

Mission
The Royal Guard serves as guardians with the primary responsibilities of:
 * Protecting the Spirit King.
 * Protecting the Royal Family.
 * Protecting the Royal Palace.

Transportation
The Royal Guard commonly stay within the Royal Palace. When they travel their preferred method of transportation is a huge pillar called the. This pillar enters from the inner dimension and lands with significant force upon its arrival. The Tenchūren however does not have the ability to return to the Royal Palace on its own, and relies on Kūkaku Shiba's cannon to launch it back.

Organization
The Royal Guard is known to promote former captains of the Gotei 13 to their ranks. The Royal Guard has has no soldiers, it only has 5 members and all of them are former Captains. Their total power surpasses the power of all the 13 Divisions together.