OVA
Description
Lucifero began existence as the archangel Morning Star, cherished by God for his unparalleled beauty and power. Convinced of his own perfection, he defied the command to bow before newly created humanity and ignited a rebellion in Heaven. Defeated by the archangel Michael, he was hurled into Hell, where he swiftly seized dominion as its ruler.

He masterminded a wager with Beatrice Portinari, betting her betrothed, Dante, would prove unfaithful during his Crusade. Dante's betrayal condemned Beatrice's soul to Hell upon her death. Lucifero claimed her for the ninth circle, plotting to corrupt her into his eternal bride and mother of his heirs. His deeper design, however, was using Beatrice as bait to lure Dante into the depths. He needed a soul sufficiently "black" to shatter the Chains of Judecca binding him to the frozen Lake Cocytus within Treachery. Past attempts using souls like Alexander the Great and Attila the Hun had failed, but Dante's sins marked him as the perfect instrument to break the chains.

Throughout Dante's descent, Lucifero manifested as a spectral shadow, taunting him with visions of his sins and displaying Beatrice's torment. He wielded powers including teleportation, shapeshifting, and projecting visions of future horrors, such as World War II, to crush his adversaries' resolve. Physically, he presented two primary forms: a colossal, three-faced demon entombed in ice, whose wingbeats unleashed the freezing winds scouring Hell, and his true form – a more agile figure with gray skin, horns, goat legs, and torn wings embodying his fallen state.

His personality fused towering arrogance, keen intellect, and profound contempt for humankind. He perceived humans as innately corrupt, asserting he merely "introduced sin" while they propagated it "like a disease." Even this pride faltered when defeated, leading him to bargain, offering Dante shared rule over the afterlife.

In their final clash, Dante ruptured Lucifero's outer demonic form, releasing his true essence. After a fierce battle across Cocytus, divine intervention encased Lucifero anew within the ice. Yet his chilling laugh echoed as a serpentine fragment of his essence slithered free, signifying his enduring influence persisted beyond imprisonment.