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Amate Yuzuriha, a high-school girl living in the Izuma colony, meets a female courier named Nyaan.

Char, an ace pilot of the Principality of Zeon forces, captures the Earth Federation's latest mobile suit Gundam, a key component to their "Operation V," at Side7. From that moment, the tide of war shifts dramatically, ultimately leading to Principality of Zeon’s victory in the One Year War. However, just before the end of the war, Gundam and Char...

Amate meets a boy named Shuji, who pilots the Red Gundam. She can’t forget the sensation of the glowing universe they experienced together and suggests forming a MAV to enter the Clan Battle. Amate decides to use the entry name "MACHU."

A super unicum known as the "Witch," who shot down over 100 enemies during the One Year War, enters the Clan Battle to settle an old score with the Red Gundam. Seeing this Witch, who clings to mobile suit combat even at the cost of abandoning her husband and child, Machu witnesses the depths of human obsession.

Machu plans to earn money in the Clan Battle and travel to Earth with Shuji and Nyaan. However, on the day of the Clan Battle, Machu is caught by Xavier. At this rate, the trip to Earth will remain just a dream. At that moment, Nyaan…