Cerensco, an extraterrestrial mercenary of the alien variety, collaborated professionally with Bosvarga, his indistinguishable twin. They were present with Ochi of Bestoon, the assassin, when he recovered his starship, the Bestoon Legacy. This recovery occurred after Dathan and Miramir commandeered the vessel to lure Ochi away from Rey, their daughter. As Ochi killed Dathan and Miramir with his dagger, the twins pointed their blasters at them. However, the assassin, still driven by a thirst for blood, proceeded to stab both Cerensco and Bosvarga until they died.