Kidō Corps (Ten Tails)

The Kidō Corps (鬼道衆, Kidōshū) is a separate branch of Soul Society's military that excels in the art of Kidō. It takes students from the Shinigami Academy that excel in Kidō and trains them to further their abilities in said area. Its operations are executed in absolute secrecy, little else is known. During an incident over one hundred years ago Jūshirō Ukitake noted how rare it was to see anyone from the Kidō Corps, especially the captain.

Seated Officer
Seated Officers in the Kido Corps work much differently than in the Gotei 13. Unlike in the Gotei 13, officers are picked by the Kido Corps Captain. As officers, they are weaker than the both the Lieutenant and the Captain. Most seated officers have shikai and a small number of them have bankai, all are skilled in Kido more so than a Gotei Captain. The officers are usually the ones to assist in opening the Senkaimon, because the Kido Captain and Vice-Captain prefer to be elusive for some unknown reason. Once Ryan became Kido Captain, he decided that Vizard would be accepted into the organization.

Specialty
The Kidō Corps is responsible for opening the Senkaimon between the human world and Soul Society.