Uroy hails from Jananda and belongs to Tonari's Group, marked by the black cloth worn around his right wrist signifying their shared identity and goal of escaping the island. Like all Jananda residents, he bears a triangular symbol on his palm denoting his status as a family member of prisoners. His background remains largely undefined, though he resided on Jananda for an extended period before the events involving Tonari's Group. At age nine, he joined Tonari in forming the group; by age eleven, they devised an escape plan. Uroy and Tonari infiltrated a shipping crew transporting prisoners as part of this strategy, though constant surveillance hindered their efforts. Uroy possesses short, slicked-back hair and is typically depicted shirtless with armor over his torso, wearing black pants suited to his rugged environment. His primary weapon is a sword, though he occasionally uses a bow and arrow. Within the group, Uroy functions as an older brother figure. He demonstrates unwavering loyalty and protectiveness, consistently drawing his sword to defend others. Tonari emphasizes his readiness to confront threats for his friends' safety. His self-sacrificing nature manifests during a critical encounter with a Nokker attached to Mia; he instructs Tonari to flee while he confronts the entity, an act that results in his death. His favorite food is chicken, and he aspired to keep multiple pets.