Mobile Suit Gundam: The Witch from Mercury S00 E03 "Mobile Suit Gundam: Witch of Mercury" 1st Season First Half Retrospective Special

"This witch... rides a Gundam."

A. S. (Ad Stella) 122 ― An era when a multitude of corporations have entered space and built a huge economic system. Suletta Mercury, a lone girl from the remote planet Mercury, transfers to the Asticassia School of Technology, run by the Beneritt Group which dominates the mobile suit industry.