Sakanaku Tenka

About
Sakanaku is a member of the  Black Corps  of the  Leazas  Army. In  Kichikuou Rance, he defected the Army and joined  Ex 's Rebellion in an attempt to take down Rance who had just become the new King of Leazas.

He's a commander that leads a unit within the black corps. A bald middle-aged man, Sakanaku is one of the eldest soldiers of the black corps seen, which implies a more experienced and veteran soldier. He wields a big  double-edged sword in the battlefield. It is unknown if he exists in canon.