Fear

"In order to be overwhelmingly stronger, we most certainly need greater armies, greater artillery, greater defense, greater military esoteric technology, but most importantly…" The Martial Master grinned. "We need greater Martial power. We live in the Age of Martial Art, of course. Martial Art is the most powerful force, whichever side has greater Martial power will win."

"The Hungry Pain technique," Rui murmured.

"Indeed. This incredible technique that you've given the Martial Union is the key to the dominance of the Kandrian Empire," The man informed Rui. "The biggest stumbling blocks in the Kandrian Empire's dominance over East Panama are the three other Sage-level powerhouses in East Panama. Only they possess the power to rival us in war. However, with the power you have given us…"