Giga & the Cyber Empire: Considered an equal to Tsurulina the 4th, Giga leads his own technologically advanced island of Cyber City far away from the jurisdiction of the largest empire.
Shigeki X: The original leader of the legendary Shigeki Empire, it has been said he controlled one of the few kingdoms in the entire world that was able to resist the powers of the Maruhage Empire, even drawing infamy from Tsuru Tsurulina the 3rd.