031 Exubertant Witness (Earth-2042)

"I am 031 Exuberant Witness, monitor of the Genesis installation. Welcome. Have you also come to stop the First Order from claiming the Mantle?"

- 031 Exuberant Witness

031 Exuberant Witness is a Forerunner monitor droid that was tasked by the Builders with maintaining the Genesis installation.

Source

 * https://www.halopedia.org/031_Exuberant_Witness