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…