Seireitei

is in the center of Soul Society, a circular shiro with four main entrances, ten days apart,, each guarded by a Gate Guardian. The walls of Seireitei are made of stone called, a material known to negate all Reiryoku, similar to magnetic lodestones, preventing the ability to gather Reishi underneath your feet to walk in the air whist within Seireitei. The stone also forms a spherical barrier around the city. Stopping anything spiritual from breaching it.

The majority of the residents of Seireitei, nobility and Shinigami alike, do not interact with the citizens of Rukongai. However, residents of Rukongai, like Renji and Rukia, are allowed to apply for the Shinigami Academy, which is often the only escape from the poorest conditions of Rukongai. Some Seireitei residents, such as ex-commander of the Onmitsukidō, Yoruichi Shihōin, and the Shiba clan, do maintain residences outside the castle.

At the center of Seireitei are the, a white tower, and Hill, where executions take place.