Gender: Female A high school girl living in the Izuma Colony of Side 6. She feels like her peaceful daily life in the colony is somehow fake. One day, after meeting the war refugee Nyaan, she becomes the pilot of the GQuuuuuuX and participates in the 'Clan Battle.' She has an honest and cheerful personality and is in love with 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 a talent for being a Newtype.

Gender: Female A refugee girl separated from her family due to war. Her home colony was caught in the crossfire when she was young, and 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 says she will do anything to stay alive. She is friends with Shuji and Machu. She has a talent for being a Newtype. She uses the MS known as G-Fred.

Gender: Male A mysterious boy whose origins, background, and family relationships are 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 maneuver it so freely. He likes Machu and is very close to both Machu and Nyaan. He loves Gundams immensely, and his way of speaking often involves saying, "The Gundam is telling me to..." In reality, Shuji is Zeknova, a person from another world who came to the GQuuuuuuX timeline. He intends to end this world by killing Lalah with the Gundam of this universe. He has a talent for being a Newtype. He uses the MS Gundam, which came from 'the other side.'

Gender: Male The original owner of the Red Gundam. He is an ace pilot of the Principality forces, known by the alias 'The 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 looking for an opportunity to take revenge on the Zabi family, whom he suspects of murdering his father. He is an exceptional Newtype and possesses great piloting skills. He uses an MS called the Red Gundam, which is a repainted White Gundam.