Little is known of Axis' personality as he remained silent throughout the film. However, he was often seen accompanying Tredd Furia so he most likely held a similar low opinion of Lucis and King Regis Lucis Caelum CXIII.
Following the death of Crowe Altius, Axis secretly observed the argument between longtime friends Nyx Ulric and Libertus Ostium alongside Tredd and Sonitus Bellum. After Libertus openly deserted the Kingsglaive, blaming Lucis and King Regis for Crowe's death, the trio silently left.
Axis was among the members of the Kingsglaive summoned to an emergency meeting where Nyx revealed that Niflheim had secretly kidnapped princess of Tenebrae, Lunafreya Nox Fleuret, and positioned a small fleet of airships in a ravine near the capital. It is unknown which ship Axis infiltrated but he was among the Kingsglaive who betrayed their sworn brothers once the fleet took flight. Except for Nyx, the traitors killed most if not all of the still loyal members of the Kingsglaive.
Following Nyx and Lunafreya's escape from General Glauca, the pair were attacked on the highway by one of Niflheim's small military transport gunships. Tredd, Axis, and Sonitus were on board and they used the gunship's turret as their primary weapon, capitalizing on Nyx's new inability to use magic. Petra Fortis soon came to Nyx's aid in a Lucian military truck and provided Nyx with the covering fire he needed to slip away.
Libertus later came across the burning remains of Petra's truck under the highway. It was surrounded by the bodies of several Niflheim soldiers, along with the three traitors. Libertus overheard Glauca and Luche setting an ambush for Nyx with a still active radio in their possession.