TV-Series
Description
Dii Aï El designates the super-account "Dark God Vecta" within the Underworld simulation, operated by Gabriel Miller. Miller is an executive and Chief Tactical Officer of Glowgen Defense Systems, contracted by the U.S. National Security Agency to infiltrate the Ocean Turtle facility and seize the AI A.L.I.C.E.

Miller possesses a lifelong obsession with capturing and observing human souls, originating from childhood insect experiments and culminating in the murder of his friend Alicia Klingerman to witness her soul's departure. This fixation drove him to master FullDive technology, dominating VR environments like Gun Gale Online under the alias "Subtilizer" through unconventional tactics such as weapon theft and close-quarters combat.

As Vecta in Underworld, Miller wields high-level system privileges granting maximum durability and elevated object and system control authorities. Commanding the Dark Territory's invasion forces, his appearance features dark armor, wings, and a menacing form befitting a deity of destruction.

His primary Underworld objective is capturing the artificial fluctlight Alice Zuberg. Miller employs psychological warfare, weaponizing traumas of human players like Asada Shino (Sinon) by recreating traumatic avatars from their past. His combat style heavily utilizes Incarnation—a system enabling mental willpower to override physical laws—manifesting abilities such as energy absorption and soul extraction.

His actions escalate during the war, including direct assaults on figures like Integrity Knight Bercouli Synthesis One and the catatonic Kazuto Kirigaya (Kirito). Miller's obsession extends beyond military goals; he attempts to consume the souls of characters like Alice and Asuna Yuuki to experience their emotional essence. This culminates in a final confrontation where he recoils from psychological backlash when confronted by manifestations of Alicia.