A Sedrian priest, named Pek, who was male, developed abilities akin to those wielded by Force users following exposure to the Golden Sun. High Priest Cardo was Pek's father.
Cardo, the High Priest, was the father of Pek, who himself was a priest and a leader among the Sedrians. In his youth, Pek was romantically involved with Fala, who was the daughter of Karak. Pek, being a priest, devoted himself to ensuring the perpetual radiance of the Golden Sun and upholding the traditions and culture of his people.
When the Galactic Empire made their presence known on Sedri, initiating the construction of their garrison, their activities began to decimate the local marine ecosystem. Consequently, Pek ventured from Fitsay to survey the installation, successfully infiltrating it. On his return journey to Fitsay, he faced an ambush by Imperial seatroopers piloting waveskimmers. During the ensuing conflict, he received assistance from newly arrived individuals who vanquished the seatroopers. Despite his initial reservations, Pek discovered that these individuals were members of the Alliance who had come to Sedri with benevolent intentions. He insisted that the Alliance agents accompany him to Fitsay to meet his father.
After the Alliance representatives engaged in discussions with Cardo, Pek made a commitment to guide them to the Imperial garrison on the subsequent day. However, the following morning, Pek revealed that his father had prohibited him from leading the Alliance team to the base. Despite this, he chose to defy his father's orders and do what he believed was right. Utilizing his comprehensive knowledge of the base's layout, Pek facilitated the Alliance agents' infiltration of the garrison.
Pek accompanied the Alliance team on their journey to the renegade settlement to locate the missing diplomat Mors Odrion, where he was reunited with Fala. The Alliance team successfully convinced Fala that her father was collaborating with the Galactic Empire, leading Fala and many of the renegades to withdraw their support for Karak. During the Battle of Fitsay, Pek, Fala, and the Mon Calamari Rekara aided the Golden Sun's chosen champion in defeating Karak and liberating the Golden Sun to illuminate all of Sedri. Following these events, Pek, together with Fala, succeeded Cardo as High Priest.