Sailor Uranus
is the white-haired member of the Witches 5 with a rank of Level 202 and able to use nano-machines to completely obliterate her enemy in her "Mosaic Buster" attack, named for the mineral viluite. She acts under the alias of , Mugen Academy's top student and prefect of the Computer Club, using her nanomachines to turn computers into Hoste-sucking machines for the Mugen Prep School held in Mugen Academy. Viluy attempts to take Mercury's soul but ends up being killed by Sailor Uranus. When Kaolinite revives the Witches 5 for her curse against the Sailor Guardians, Viluy targets Mercury's insecurities and later attacks Sailor Moon before destroyed by the Outer Guardians.