Aion, once a nerdy human by the name of Mark, is a powerful, stoic wanderer of universes. Master of the Force, spells, ki-techniques, Stand abilities, and elemental powers, he wields a Pyro Vision and has advanced cybernetic-and nanobiological augmentations. As an Emanator of the Aeon IX, he follows the path of Nihility. With his loyal Alakazam by his side and the Stand "Tempus Aeternum," Aion seeks strength and challenges across worlds, driven by a nihilistic yet relentless quest for power.