The Kajin are specially trained Temujai marksmen. There is one attached to each Ulan. They are assigned to take out the leaders of any enemy group the Temujai might be facing, making for an easier battle for the Temujai.
Near the end of Oakleaf Bearers NIt'zak orders the Kajin from fifty Ulans to become one unit, sending them to kill Will and the archers.
- Kaijin is a Japanese word for humanoid monsters.