Tersu was a Human female from the planet Zakuul who was a member of the Scions of Zakuul, a subgroup of the Knights of Zakuul that specialized in Force visions and were obsessed with the idea of fate. A fair-skinned woman with reddish hair and brown eyes, Tersu wielded a magenta-colored lightsaber in battle like other Scions. After Emperor Arcann ordered the massacre of the Scions around the time of his ascension to the throne of the Eternal Empire, Tersu was among the few Scions who escaped the purge and settled in an enclave on the shadowport Asylum under the leadership of Heskal. In 3632 BBY, the Scions summoned the figure known as the Outlander to Asylum and tested the foreigner to determine why they could not see the Outlander's future. Along with other Scions, Tersu attacked the Outl