![large.jpg](https://media.kitsu.io/anime/poster_images/161/large.jpg)
MOMO is a Realian—more specifically, a prototype 100-series Observational Realian—developed with special technology to combat Gnosis and utilize the Hilbert Effect. She was created with the appearance and personality of a little girl, and like all Realians, she never ages or otherwise changes from her manufactured appearance. (Source: Wikipedia)