The main character Mikazuki Augus, from Chryse Guard Security (CGS), was on a mission to protect Cuderia Aina Bernstein, who wants Chryse, Mars’ city, to be independent of Earth’s ruling.
Mikazuki, with Orga’s request to defeat Gjallargorn, uses Gundam Barbatos, a major mobile suit that CGS used during Yakusaisen to fight.
The series is directed by Tatsuyuki Nagai based on story composition by Mari Okada.
Check out our review of the first and second parts of the first half of the series.