A prominent figure in the field of Veterinary Medicine, Glacius Yuri became an activist in primate liberation after completing their tenure at ESO State Community Center of the Stars. Having been exposed to much violence as a native of the Zealot caste in their early life, Glacius fled and sought refuge with the Doctors, where they learned to help others. Now, with the native primates still in captivity on Earth, Glacius and the Doctors venture to fulfill the promise of release that the Homo Insipiens have reneged.