Kou Ryuu has a tall and strong built. His face is covered by many scars and he has a goatee. He is wearing armour and wielding a glaive.
There is not much known about him.
Kou Ryuu was the commander of one of the wings. He separated his cavalry unit quite early in the battle from the main part of the army, but returned independently when a cavalry unit of the rebel army wanted to hit the flank of it. After this he used his men to create a "wall", when the Shou Hei Kun Army performed the "Hourai".
As a general, Kou Ryuu appears to be a competent and capable military commander.
Kou Ryuu is skilled with a glaive as he was able to slain enemy soldiers with ease.
Kou Ryuu proves to be a capable leader as he leads his army in the frontline.
Kou Ryuu has the eye for tactical maneuvers as when he returned to the main army, without any signal, in order to crush the flanking cavalry. He also shown to have tactical knowledge as he served as one of the wall for the "Hourai" strategy.