Gender: Female A high school girl living in the Izuma Colony of Side 6, she feels that her peaceful daily life in the colony is somehow fake. One day, after meeting the war refugee Nyaan, she becomes the pilot of GQuuuuuuX and participates in 'Clan Battles.' She has an honest and cheerful personality and has feelings for Shuji. Her relationship with Nyaan is closer than friends but more distant than lovers. She is very close to both Nyaan and Shuji. Others call her by the nickname Machu. She pilots the MS known as GQuuuuuuX. She seems to have potential as a Newtype.

Gender: Female A refugee girl separated from her family due to war. When her home colony was caught in the conflict during her childhood, she escaped Side 2 alone in a Petit Mobile Suit without having time to check on her family's safety. Fortunately, she was rescued by a ship and arrived at the Izuma Colony in Side 6, where Machu lives, staying there for five years. Nyaan's top priority is survival, and she claims she will do anything to stay alive. She is friends with Shuji and Machu. She has potential as a Newtype. She uses the MS named G-Fred.

Gender: Male A mysterious boy whose origins, background, and family relationships are completely unknown except for his name and face. It is unclear how he snuck into the Izuma Colony, how he obtained the Red Gundam, or where he learned the superior piloting skills to operate it so freely. He likes Machu and is very close to both Machu and Nyaan. He is obsessed with Gundams, and his speech pattern often involves saying things like "The Gundam is telling me to..." In reality, Shuji is Zeknova, a person from another timeline who came to the GQuuuuuuX world-line, intending to kill Lalah with that world's Gundam and bring an end to this alternate world. He has potential as a Newtype. He uses the MS Gundam, which came from 'the other side.'

Gender: Male The original owner of the Red Gundam. An ace pilot of the Principality forces known by the moniker 'Red Comet.' His true identity is Casval Deikun, the son of Zeon Deikun, the founder and politician of the Republic of Zeon. He has been seeking an opportunity for revenge against the Zabi family, whom he suspects of murdering his father. He is an exceptional Newtype with excellent piloting skills. He uses an MS called the Red Gundam, which is a repainted White Gundam.