A Twi'lek child who lived on the planet Ryloth during the Clone Wars, Numa escaped being captured by the Separatist droid army by hiding in tunnels beneath the town of Nabat.
Two clone troopers from Ghost Company -- Boil and Waxer -- discovered Numa while on a recon mission. She showed them the tunnels, which Obi-Wan Kenobi then used to free the Twi'lek prisoners and defeat the town's Separatist occupiers.
During the Galactic Republic attack to free Ryloth and its people from the Separatists, two clone troopers named Waxer and Boil were sent on a reconnaissance mission to the city of Nabat. The pair discovered Numa hiding in an alley and decided to take her with them to safety.
Numa lived in the city of Nabat on the planet Ryloth during the Clone Wars. After Numa's parents were killed during the Separatist invasion, the young Twi'lek was able to avoid capture and lived in the abandoned city and its tunnel system underneath until being rescued by a pair of Republic clone troopers.
After being brought to the Republic staging area, Numa showed the company's commander, General Obi-Wan Kenobi, the system of tunnels underneath the city that she had been hiding in. This allowed the Republic forces to flank the droid army and free the city.