The natives of Korugar are humanoid in appearance, with bright red skin. Their planet was a peaceful place until its original Green Lantern, Sinestro, became corrupt. Wanting to ensure that Korugar would be a place of order, Sinestro set himself up as the planet's dictator, and ruled it with an iron fist. When the Guardians learned of Sinestro's crimes, they stripped him of his ring and exiled him to the anti-matter universe of Qward (in the reboot of the Green Lantern series Green Lantern: Emerald, it is new Lantern Hal Jordan that uncovers Sinestro's crime). Katma Tui, the leader of the Korugaran resistance movement against Sinestro, was recruited as Sinestro's replacement. However, due to Sinestro's repressive reign, the Korugarans had come to view the Green Lantern symbol as a sign of tyranny, and rejected Katma, calling her "The Lost" . The Korugaran's distrust of the Guardians is still strong by the time Soranik Natu is recruited, as she is reviled by her associates when she receives the ring. Their opinion of her changes after she faces Sinestro during the Sinestro Corps Wars.