This person, an Oblee, lived on the world of Oblis within the Cularin system. This occurred millennia before the Clone Wars. They were a member of the Oblees' dominant class, the scientist-philosophers. When a shadow creature arrived on Oblis and integrated with the atmosphere of the planet, the scientist-philosophers decided to employ the Darkstaff, an age-old Sith artifact that a wandering trader had brought to the planet, to fuel a device capable of expelling the shadow creature from Oblis. This particular Oblee was assigned the duty of controlling this device, placing the Darkstaff into a designated slot to activate the mechanism. Regrettably, the machine failed to banish the shadow creature. Instead, it initiated a large cataclysm that led to the obliteration of Oblis.
During the Clone Wars period, the Heroes of Cularin experienced a vision depicting the final moments of Oblis. This vision showed the scientist-philosopher inserting the Darkstaff into the machine that was intended to force the shadow creature away from Oblis.