Laeras-Wu was a male Voss who lived on the planet of the same name well before the Galactic War between the Galactic Republic and the Sith Empire. A Force-sensitive Mystic, Laeras-Wu died sometime before 3641 BBY, and his spirit remained within the Shrine of Healing on Voss alongside fellow Mystics Shanatka-Lo and Hanar-Ye to teach Force rituals to other Mystics and healers. Laeras-Wu, Hanar-Ye, and Shanatka-Lo taught the Sith Lord Fulminiss a healing ritual at the request of the Mystic Valen-Da, and though Fulminiss corrupted the ritual with the dark side of the Force, the three spirits remained confident in the wisdom of their fellow Mystic.