Yanci was a Human miner (a female), living in the last years of the Galactic Republic on New Apsolon. She was a student of medicine and felt compassion for the Workers on that world.
In the year 41 BBY, Yanci, together with her friends Kevta and Bini, encountered Jedi Master Qui-Gon Jinn and his Padawan, Obi-Wan Kenobi. They initially believed them to be Absolutes (their adversaries) and launched an assault. Obi-Wan sustained an injury during the conflict, but Yanci, upon realizing their error, employed her medical skills to mend his leg. Once he recovered, and after the Jedi, accompanied by Eritha, departed the mining facility, the Absolutes launched an assault on the mine. Yanci rushed to find the Jedi, but by the time they returned, the Absolutes had already completed their slaughter. Among the dead were Yanci's comrades, Bini and Kevta, the latter of whom she held romantic feelings for.