Interlude

The paths between worlds are dangerous places. In order to clean, straighten, and maintain the Dangai, the path between Senkaimons, there is a device known as the Cleaner that runs regularly inside.

A time-stop in Seireitei put deadly wrinkles in the Dangai. Untended, running in two separate times, the Dangai became even more dangerous and unpredictable then usual. When time was restored, it became necessary to repair the Dangai, a task the existing Cleaner was not built for. The Mender was created by the Captain of the Twelfth Division and put to work, running for periods of twelve hours several times a week. Over time, the number of times the Mender was scheduled to run was lessened as the Dangai slowly straightened out.

While the Dangai was safe again to use in ordinary circumstances, when the Mender was active it became more dangerous then ever before...