Sovereign is both a spacecraft capable of traversing the Void and the name of the AI that operates the ship.
As an AI, Sovereign is responsible for managing the Deep-Dive Simulation experienced by the marines transported aboard the ship and is thus aware of all events that occur within that simulation.
Like humans, Sovereign has a Soul, which means it is possible for the Sovereign to be a participant in the Allbright System.
First appearance: Arc 1, Chapter 6