Following the global disruption caused by the pandemic, the reopening of the academic gates marked the start of the 2013–2014 school year. At Kuoh Academy, amidst the sea of mortal teenagers and disguised young devils, two anomalous entities registered as fresh transfers.
Anissa Maharani and Ridho entered the academy under the guise of ordinary human students. In truth, they were two high-tier deities walking the mortal plane: Ridho, carrying a hidden primordial weight, and Anissa, carrying the pristine, unyielding cosmos of the absolute final incarnation of Goddess Athena. For centuries, the gods had viewed the human world from high thrones; now, as the fabric of the universe began to tear, Anissa and Ridho sought to understand the fragile, resilient nature of mortality from within its own ranks.
Living among mortals allowed Anissa to suppress her divine presence, shielding her from the sensory networks of the Underworld and the Chaos Brigade. Yet, destiny refused to grant the Goddess of Wisdom her requested peace.
Act II: The Ambush of the Old Satan Faction
The fragile truce between the supernatural powers collapsed during the Summit of the Three Factions. The historic meeting—intended to solidify peace among the Angels, Fallen Angels, and Devils—was augmented by the arrival of crucial foreign delegates: three emissaries representing the Shinto Pantheon, a delegation from the Alaya Hero Association representing the collective will of humanity, and Rossweisse, leading the Valkyrie vanguard from the Nordic realms.
Before the treaty could be signed, the sky above the summit grounds shattered into a chaotic violet hue. The Old Satan Faction, driven by fanatical devotion to the original rulers of Hell, launched a catastrophic ambush. Leading the assault were the direct descendants of the Original Demon Kings:
Shalba Beelzebub, wielding the rot and decay of the fly-lord's legacy.
Katarea Leviathan, commanding massive tidal currents of dense, abyssal demonic energy.
Creuserey Asmodeus, radiating the maddening, destructive aura of absolute lust and slaughter.
"Mortal worms and false kings!" Shalba's voice bellowed across the barrier, his demonic wings expanding to blot out the sun. "You gather to sign a pathetic treaty, yet you ignore the true lineage of the underworld. Today, this summit becomes your collective pyre!"
Act III: The Vortex of Chaos
The battle erupted instantly into an apocalyptic crossfire. The Three Factions deployed their elite guards, while the Shinto emissaries formed complex defensive arrays alongside the strategic barriers woven by the Alaya Hero Association. Rossweisse commanded the Nordic sky-grids, firing barrage after barrage of elemental magic to intercept Katarea's sweeping abyssal tides.
However, the sheer density of colliding energies—demonic power, holy light, Norse runes, and the collective willpower of Alaya—created an volatile cosmic anomaly. The intense friction tore open a localized spatial vortex, a swirling maelstrom of raw, chaotic energy that began consuming the surrounding dimensional walls.
Sensing the sudden, catastrophic shift in the battlefield's energy, Anissa stepped forward, her human disguise burning away to reveal the shimmering, golden outline of Athena's true cosmos.
"The balance is completely collapsing," Anissa warned, her eyes flashing with divine wisdom as she manifested the edge of her golden shield to protect the nearby human delegates.
Before she could stabilize the spatial rift, a colossal presence manifested beside her. Aji, the Primordial Ruler of the Nusantara Archipelago, arose from the shadows of the human delegation. His ancient, terrestrial energy flared, resonating with the raw power of the volcanic and oceanic foundations of his homeland.
"This maelstrom isn't a mere accident of war, Athena," Aji stated, his voice carrying the deep vibration of the earth itself. "The descendants of the Demon Kings are fracturing reality itself. If this vortex expands, it will swallow both the mortal realm and the supernatural domains alike."
Locked at the epicenter of the ambush, the final incarnation of Athena and the Primordial Ruler of Nusantara found themselves completely ensnared by the chaotic currents. As Shalba, Katarea, and Creuserey unleashed their ultimate spells against the summit, the vortex flared with blinding intensity, dragging Anissa, Aji, and the destiny of the world into the heart of the conflict.
The localized spatial vortex, fueled by the apocalyptic crossfire of the factions, pulsed violently before violently snapping back, depositing the combatants directly onto the fractured grounds of Kuoh Academy. The human illusion covering the campus shattered instantly under the pressure of the descending entities.
Witnessing the sudden manifestation of Athena's golden cosmos and the tectonic, ancient resonance of Aji Saka, the three descendants of the Original Demon Kings realized these were no ordinary mortal students. The sheer threat of a Primordial Ruler of Nusantara and the final incarnation of the Goddess of Wisdom forced Shalba Beelzebub, Katarea Leviathan, and Creuserey Asmodeus to temporarily abandon the Three Factions summit and commit their entire military might to a grand assault right there on the academy grounds.
"To think two hidden gods were playing human within these walls!" Creuserey Asmodeus shrieked, his eyes burning with chaotic malice as he pointed his demonic staff forward. "Your divine blood will make an excellent tribute to the true legacy of the Underworld!"
Creuserey lunged first, unleashing a dense, suffocating wave of Asmodeus' signature slaughter-magic. The absolute energy sliced through the academic buildings, turning stone and reinforced concrete to ash as it rushed toward Anissa.
"Impertinent devils," Anissa spoke, her voice echoing with the absolute authority of the Sanctuary. Without breaking her stance, she raised the Aegis shield. The divine artifact expanded into a wall of pure, blinding starlight. When Creuserey's dark magic collided with the barrier, it didn't merely stop—it violently dissipated into harmless golden particles.
Simultaneously, Katarea Leviathan hovered high above the courtyard, her multiple devil wings beating furiously as she conjured massive, serpent-like torrents of abyssal water from the Underworld's deepest seas. "Let us see if your shield can withstand the weight of an ocean, Athena!" she roared, sending the crushing, cursed tides flooding down to drown the entire campus.
Before the catastrophic torrent could hit the ground, Aji Saka stepped to the vanguard. He slammed his foot onto the earth, activating the primordial currents of the Nusantara archipelago. "You dare bring foreign waters to wash away the land I protect?" Aji bellowed.
The ground beneath Kuoh Academy groaned as massive columns of volcanic rock and earthen pillars erupted from the subterranean strata. The earth rose like a defensive cage, absorbing the impact of Katarea's abyssal currents and neutralizing the curse with the raw, cleansing heat of geothermal magma. The steam generated by the collision blinded the battlefield in a thick, white shroud.
From within the mist, Shalba Beelzebub materialized directly behind Anissa, his hands glowing with the green, rotting aura of the Beelzebub bloodline. He fired a point-blank barrage of decay-flies, designed to erode physical flesh and divine cosmos alike.
"Your vigilance wavers, Goddess!" Shalba sneered.
But Anissa did not even turn around. Sensing the trajectory through her cosmic awareness, she thrust her Golden Staff of Victory backward. The tip of the staff flared with the light of a miniature supernova, incinerating Shalba's decay-magic instantly and forcing the Demon King descendant back with a powerful kinetic shockwave.
As the smoke cleared over the ruined courtyard of Kuoh Academy, the three descendants stood flanked against the two deities. The air cracked with overlapping pressures—the divine cosmos of Athena, the ancient terrestrial weight of Aji, and the condensed malice of the Old Satan Faction. The battle for the fate of the mortal world had officially turned Kuoh Academy into ground zero.