Mother Eliza is the holographic personification of the mother computer on Station E-1077. She functions as both an absolute authority figure and as a counselor to calm and reassure the students on E-1077. The appearance of Mother Eliza varies from person to person as she reflects the image of the most calming female figure in an individual's life. In the case of Keith Anyan, Mother Eliza appears as woman who has a very strong resemblance to Physis.

Both Keith and Physis were genetically engineered from scratch by a program initiated by Mother Eliza.