- Sai - The Kingdom of Sai is one of the four "middle" kingdoms the Twelve Kingdoms. It is currently ruled by Kouko.
- Han - The Kingdom of Han is the westernmost kingdom, known for its artisans and craftsman. It is ruled by Ranjou.
- Kyou - The Kingdom of Kyou is one of the four "middle" kingdoms of the Twelve Kingdoms. It is ruled by Shushou