Kidou Senshi Gundam 0083: Stardust Memory - Uchuu no Kagerou
English title: Mobile Suit Gundam 0083: Stardust Memory - The Mayfly of Space
Japanese title: 機動戦士ガンダム 0083 スターダストメモリー 宇宙の蜉蝣
Type: Special
Episodes: 1
Source: Radio
Genres: Action, Drama, Sci-Fi
Studios: Sunrise
Duration: 3 min
Rating: PG-13 - Teens 13 or older

Mayfly reveals Cima's backstory in flashbacks as she reflects on her past prior to the events of Episode 13. It reveals that Cima and her unit poisoned a Side 5 colony using G-3 nerve gas, under orders, but were treated as pariahs afterwards by their own countrymen for committing such an atrocity. At the end of the war her superior refused to let her retreat to Axis. Because their home colony Mahal had been converted into a weapon, Cima and her men were left stranded and homeless.

(Source: Wikipedia)