Greti was a young girl from Lanteeb, a Lanteeban native, who resided in the mining settlement of Torbel during the era of the Clone Wars. Possessing Force-sensitivity, she was the daughter of Teeba Bohle. Because of her natural gift for Force healing, she assisted Obi-Wan Kenobi in mending the wounds and curing the ailments of the village inhabitants during the time Torbel was under siege. She inquired about accompanying him to Coruscant for Jedi training, but Kenobi, aware of her advanced age, regretfully declined. Following the siege, she, along with the remainder of her village, relocated to Naboo.
During the conflict, Greti, an only child, shared a home with her mother, Bohle, and approximately 300 other individuals in the village of Torbel on the world of Lanteeb. Following the planet's seizure by the Separatists, General Lok Durd demanded that the residents provide him with all of the mine's resources. On that particular day, her mother, in addition to several miners, fell victim to a severe illness contracted from the Damotite. Greti felt very worried when she went to see them at the hospital camp. It was during this time that she encountered Obi-Wan Kenobi and Anakin Skywalker for the first time, who were disguised as villagers with the intention of ending the Separatist occupation. Upon meeting her, Obi-Wan was astonished by Greti's aptitude for Force healing, which led to a close bond forming between them.
The subsequent day brought a theta storm that swept over Torbel, damaging one of the shields and placing the village in even greater peril. Anakin, utilizing his technical prowess, managed to restore power to the shield, thus saving the village. Nevertheless, there were numerous casualties, including Arrad, who were afflicted with a terrible sickness. With the Jedi's cover now compromised, Kenobi enlisted the aid of Greti and Sufi to treat the afflicted. Initially unsure of what to do, Greti received guidance from Kenobi on controlling her emotions, enabling her to heal several villagers, including her mother, while others had already succumbed to the illness. In the days that followed, Greti learned to meditate through the Force, as she was having difficulty sleeping.
Upon learning of the Jedi's presence in the village, Lok Durd dispatched his forces to eliminate them. However, Anakin and Obi-Wan devised a plan to surrender themselves to the Separatists in order to safeguard the villagers. Upon discovering this, Greti persuaded them to remain and offer sanctuary. During the siege, a Republic fleet succeeded in breaching the planet's defenses and provided assistance to the villagers in their fight against the Separatists. When Taria Damsin arrived in the village to warn Kenobi and Skywalker, she was seriously wounded after destroying Durd's laboratory at Lantibba City. Greti managed to heal the young Jedi Master in time before the droid army approached the village. Although she survived the attack, Torbel was left in ruins. On that very day, Greti and the remaining villagers were offered refuge by Queen Jamillia of Naboo. Before departing, Greti expressed her desire to go to Coruscant and become a Jedi, but Kenobi, aware of her age, reluctantly declined. Understanding his reasoning, she bid him farewell as she departed for Naboo.