Sakai served as an Imperial Moff and held authority over the Thuris sector throughout the period of the Galactic Civil War.
Holding the title of Moff, Sakai, an Imperial leader, governed the Thuris sector. He expressed disapproval of the methods employed by Moff Abran Balfour in his governance of the adjacent Parmic sector.
Shortly following the Battle of Yavin, a distinguished Rebel SpecForce unit known as Reekeene's Roughnecks initiated opposition against Sakai. They utilized the CEC modified HT-2200 medium freighter, named Reekeene's Retribution, to conduct 1,200 armed assaults on Imperial forces and assets. The Roughnecks received recognition for destroying 872,000,000 tons of Imperial resources, including an orbital starship yard; these actions may have been exclusively against Sakai's forces.
Sakai was successful in uncovering the identities of a number of Roughneck members and subsequently reached out to the special forces within the Imperial Navy. A specialized unit, designated Venom Guard, was tasked with locating and eliminating the Roughnecks. Following a coordinated multi-ship assault by the Rebel fleet on an Imperial stronghold within the Thuris sector, the Retribution experienced an infiltration. This ship did not accompany the other ships in its fleet.