Vent and Aile

Vent and Aile are Humanoid fraternal twins. Vent is a boy and Aile is a girl and the two of them are 18 years old. They both used to be delivery people, but due to the Maverick attacks, they both become Guardians. Vent is kind and determined, but is extremely hot-headed and reckless while Aile is a tomboy and very energetic, but is more lenient and compassionate while also being cautious about enemies. In the past, both of them lost their mother to the Mavericks at a young age and have under been their boss’s, Giro’s, care until his death at Serpent’s hands, at this point, they became orphans 4 years later, but still continue to fight together as Guardians. Vent wields Biometal Model Z, which contains Zero’s essence, while Aile wields Biometal Model X, which contains X’s essence. (You, the protagonist, can choose to be a human, Humanoid, or a Reploid, male, female, transgender, or non-binary, and you can choose your own Biometal Model)