This Sith nanny droid was a RO-series childcare and nanny droid employed at Darth Sidious's secret facility situated on Mustafar. It collaborated with RO-Z67, a fellow Sith nanny droid, in this location. Their shared responsibility involved caring for abducted Force-sensitive youngsters, who were intended to be nurtured and instructed to become part of Sidious' network of intelligence operatives and killers. The Sith nanny droid met its end, along with RO-Z67, when Sidious commanded the shutdown of the station's gravity stabilizers. This occurred during a raid on the facility by Anakin Skywalker and Ahsoka Tano, who successfully liberated the children, resulting in the base's submersion into the molten lava beneath.