Lwyll was a female Human residing on the moon of Nar Shaddaa before the Galactic Civil War; she was romantically involved with the smuggler Roa. Despite the obvious affection between them, Roa's repeated proposals of marriage were always turned down, unless he gave up his smuggling career. Eventually, Roa chose to retire, and Lwyll consented to become his wife, even though their love was well-known throughout the Corellian Sector of Nar Shaddaa. However, Roa responded to the call to battle during the Battle of Nar Shaddaa, piloting a ship named in her honor, the Lwyll. After this battle, Roa and Lwyll journeyed to the Corporate Sector.
During the Yuuzhan Vong invasion of the galaxy, Lwyll met her death on the planet Atzerri; subsequently, Roa joined the countless individuals fighting in the war, driven by a desire for vengeance for the loss of his beloved.