Kieran is one of the henchmen of Sylus, the ruthless leader of Onychinus, an organization focused on the manufacturing and trade of illegal protocore weapons. He resides in the base of Onychinus, an expasive, luxurious manor, located in the N109 Zone, with his older twin brother Luke, who is also one of Sylus's henchmen, Sylus, and Sylus' mechanical crow, Mephisto. Kieran is the more serious of the twins. He's loyal to his boss and skilled with a dagger.