An Oathsworn Circle
- Leaf Shakes the Wind [age ?]: Night Caste
- Nameless Ravine [age ?]: Dawn Caste
- Rivers Between Us [age 16]: Marukan engineer; sorcerer, scholar, and peace-loving martial artist. Twilight Caste
- Song of the Silver Wind [age ?]: Eclipse Caste
- Storm of Amber [age ?]: Marukan Circuit-Rider; judge and lawman of the horse tribes. Zenith Caste