Mia is a member of the Shaehai Rebels, a wandering group of Antiphon agents who refused to re-assimilate and deserted their exploration mission. Mia is a single core, meaning she is made up of only one Antiphon core (vs Nico who is made up of numerous cores). Mia is the Shaehai's primary technician, she uses her exceptional knowledge and a seemingly spiritual connection with the ship to catch issues before they ever appear.

Her refsheet can be found here: https://refsheet.net/OldManCassius/Mia

Art by https://www.furaffinity.net/user/whimsydreams