ZN-A4, also known as Zee, was a service droid of Santari Khri, a Jedi from the High Republic Era. During the fall of Talanorr, her former master saved the route to Koboh Abyss in her memory bank. Also, Santari gave her a tuner and told her to activate the Forest Array when the time came. After the attack of the Nihil raiders, she was trapped under the Koboh surface but was awakened by Cal after two centuries. After Gera found Zee’s true potential, he droid-napped her for the memory bank. But after getting rescued by Cal, she completed her former master’s uncompleted mission by activating the Force Array for the mantis crew.