Circles
each of the primary social castes of the Nagai race was placed into a Circle, with membership being determined by birth. Within each Circle were several Sub-circles, and individuals could move upward through the Sub-circles during ritualized combat. The system of Circles was briefly abandoned during the Tof invasion of Nagi, as members of all social castes worked together to drive off a common enemy. In the aftermath of the Tof invasion, many Nagai lobbied to remove the system of Circles all together.