Not long after the initial extinction of the Sith, the people of the mountain planet Korba are helping the Jedi purify the kyber crystals, which have been bled by the Sith. A young native girl named Aau seems to have an unusual effect on the crystals when she sings. Her father, Abat, is trying to help a Jedi named Kratu with finding a way to heal the crystals, but warns Aau that her singing is dangerous. While Abat is in the mines, Aau discovers another cave entrance with crystals and begins to sing, only for Abat to interrupt her, causing the caves to react violently. Kratu attempts to save them, but Aau realizes what she must do and sings again, which manages to finally purify the crystals. Kratu reveals that Aau must come with her to fulfill her destiny as she and Abat have a tearful goodbye.