Side stories included in the "Kingdom: Highlights" books:

Volume 1:
1. Kongou (金剛)
2. Umazakehei Sanbyaku (馬酒兵三百)

Volume 2:
3. Li Mu(李牧):
An insight to the past of Li Mu and Hai Yin as they resist the forces of the Xion Nus.
4. Meng Wu and Chu Zi (蒙武と楚子)