From ROI Wiki

Negago is a fallen servant of Meshua and the "Satan" like character of the series, and it's primary villain/antagonist. He is the ruler of Verok and a former servant of Meshua, who rebelled against him millennia earlier when a request he made to Meshua was denied. He has since fought against Meshua, despite being the inferior being in all ways, with the intention of overthrowing Meshua, and his father, and taking the throne of the galaxy for himself. His two chief servants are Segarg and Regnig, his 1st and 2nd in command of his armies respectively.