Collan Eislo, a Human of male gender, aspired to be a Sith apprentice and headed up a Sith cult known as the Apex Society.
Born into a noble family, Eislo became captivated by the Sith. He held the belief that the Force represented the galaxy's ultimate power within the galaxy, and that the Sith alone dared to fully utilize the power it offered. Consequently, he yearned to become a Sith apprentice, dedicating himself to studying Sith holocrons and leveraging his family's fortune to fund archaeological expeditions to locations of Sith importance.
Despite his efforts, Eislo lacked sensitivity to the Force, preventing him from becoming a Sith apprentice, irrespective of the number of Sith artifacts he collected. He then learned of tales concerning the mask of the ancient Sith Lord Darth Nihilus, which was said to bestow the wearer with the ability to wield the Force, and thus, he sought to locate it.
Accompanied by the Apex Society, a group of Sith followers under his command, Eislo embarked on a quest to locate the mask, eventually tracking it to the planet Volik. Eislo and his Apex Society journeyed to Volik, where Eislo assured his followers that upon acquiring the mask's power, he would ascend to the role of their master.