The obsidian walls of Kael Phenex's sanctum seemed to breathe with contained power. Years of secrecy, brutal training, and calculated gambits had transformed the gilded pawn into something the Underworld wouldn't recognize – wouldn't dare to recognize. Through Kael's eyes, his father's carefully staged illusions – the doctored reports, the scripted public appearances masking his true growth – felt like a fragile dam holding back a flood. Riser's presence, a bitter aftertaste in Kael's mouth, was a necessary poison. The fallen heir's sneering lessons on Phoenix Fire kinetics ("Absorb the blow, channel it back, fool!") were grudgingly absorbed, filed away in Kael's mind like shards of obsidian. Riser's resentment was palpable, a dark mirror reflecting Kael's own buried fury at the world that had tried to cage him.
The Summons: Gambits in the Void
Kael focused, the cool weight of the Mutated Rook Piece heavy in his palm. The Multiversal Summoning Protocol hummed, a cosmic roulette wheel spinning on his demonic energy. Ambition. Power. Resonance. He poured his will into the void, picturing conquest, unyielding strength, a force to shatter paradigms.
The tear in reality screamed. Pressure. Kael staggered, blood trickling warm from his nose as the figure descended. Madara Uchiha. Rinnegan eyes burned with cold, ancient ambition. Kael felt the Six Paths chakra surge into him – not just power, but millennia of war, loss, and the crushing weight of godhood. His mind threatened to fracture. Hold. Adapt. He offered Madara the Mutated Rook Piece, the terms simple: a new world to conquer, amplified power, immortality. Madara's acceptance was a silent, crushing wave. Kael watched, senses reeling, as the Uchiha's Susanoo solidified into unbreakable obsidian, radiating a Super Devil's aura that made the air crackle. An ally. A weapon. A cornerstone.
Next, the Knight Piece. Sosuke Aizen. The man materialized with unsettling serenity, his glasses reflecting the void. Kael felt the icy intellect probing him, dissecting the offer. The flood of Kyoka Suigetsu mastery, Kido knowledge, and hollow-tinged Reiatsu was like swallowing an ocean of illusions. Aizen's choice of the Knight Piece felt less like submission and more like a predator selecting a new hunting ground. His empowered spiritual pressure gained a corrosive edge, Satan-class potential simmering beneath the calm. A strategist. A wild card.
The Mutated Queen Piece pulsed. Kael sought not a healer, but a creator. He focused on cosmic ambition, reshaping existence itself. The tear opened, and Kagaya Otsutsuki descended. Not weakened, but at the zenith of detached divinity. The influx was profound – not pain, but the chilling weight of divine chakra manipulation, Tenseigan power, the indifferent calculus of a being who saw worlds as clay. Kael offered him the Underworld as a canvas. Kagaya's acceptance was serene, terrifying. As demonic energy fused with Otsutsuki biology, Kagaya's aura bloomed into Super Devil magnitude, warping the light around him. A divine architect. Unfathomable potential.
Piece by piece, Kael built his pantheon, each summon a gamble witnessed solely through his senses:
Kaido (Rook): The dragon's roar vibrated in Kael's bones. The raw animal power, Conqueror's Haki, and thirst for battle surged into him. Kaido's scales turned obsidian, his roar infused with demonic dread (Ultimate-class, bordering Satan).
Douglas Bullet ( Rook): Rage and the drive to surpass Roger hit Kael like a physical blow. Bullet became a fortress of demonic metal (High Ultimate-class).
Mihawk (Knight): The swordsman's calm precision was a balm amidst the chaos. Mihawk's senses sharpened, Yoru gaining the power to sever dimensions (Peak Ultimate-class).
Gol D. Roger (Mutated Knight): Roger's infectious laugh and boundless freedom flooded Kael with warmth. The Pirate King's Haki reached celestial heights (Peak Ultimate-class).
Satoru Gojo (Mutated Bishop): The instant Kael gained the Six Eyes was revelation. The universe dissolved into infinite data streams – energy flows, spatial weaknesses, probabilities. Gojo's empowered Limitless felt like holding infinity (Satan-class hax).
Ryomen Sukuna (Mutated Pawn): The corrosive flood of Cursed Energy, Cleave/Dismantle mastery, and innate adaptation (a core trait, not technique) made Kael's soul shudder. Sukuna became a grinning apocalypse (Satan-class destruction/adaptation).
Kuroka (Rook): Her feline grace and Senjutsu merged seamlessly with demonic energy, making her a phantom in the shadows (High Ultimate-class).
Daenerys Targaryen (Bishop): Her latent affinity for Summoning Magic surprised Kael. Empowered, she could summon spectral dragons, her bond with Drogon transcending worlds (Ultimate-class).
Alyssa Bloodmoon (Queen): The ancient vampire's blood magic ascended, promising battlefield control and stolen vitality (Ultimate-class, Satan potential).
Izuku Midoriya (Pawn): Kael felt the boy's brokenness, the volatile fusion of "One For All For One" and "Nullification Reclamation." Demonic reinforcement stabilized the chaos within Deku (Ultimate-class, immense potential).
Orihime Inoue (Bishop): Her pure desire to protect resonated. Kael sensed her Shun Shun Rikka evolve – fairies gaining demonic wings, shields expanding to reject harm on a conceptual level. The ultimate safeguard (Ultimate-class hax/healing).
The Crucible: Forging the Third Super Devil
Training became a symphony of controlled annihilation. Kael felt every blow from Kaido and Bullet, the fractures in simulated reality. He navigated Aizen and Kagaya's multidimensional strategies, his mind stretched thin. Mihawk's blade taught precision that cut to the soul. Sukuna's sneering critiques were barbs driving him forward. The Six Eyes analyzed everything, demanding impossible efficiency. Sukuna's innate adaptation became his lifeline – reacting, evolving, rewriting his own demonic code against each simulated death.
Burned by hellfire? Phoenix nature adapted, becoming immune.
Sliced by spatial fracture? Body evolved, resisting the shear.
It was agony. Each "death" forced a radical metamorphosis. His demonic core grew denser, hotter, straining towards a threshold only felt in legends.
The breaking point came within Gojo's Unlimited Void, layered with Madara's Truth-Seeking Orbs and Aizen's soul-deceiving illusions. Information overload met sensory deprivation. The Six Eyes screamed. Adaptations faltered. Annihilation loomed.
Satori.
The Six Eyes fused with his perception of adaptation. He didn't see attacks; he saw the fundamental code of the energy assailing him. He saw how to rewrite it. Not adapt. Reject.
With a roar tearing from his soul, Kael rejected the attacks' existence. Pure white Phoenix Fire, blazing with Absolute Rejection and Reactive Evolution, exploded outwards. Truth-Seeking Orbs dissolved. Illusions burned away. Unlimited Void shattered.
Silence. Kael stood amidst the ruins, breathing. His aura wasn't Ultimate-class. It was Super Devil. Vaster. Denser. A pressure that made even Madara and Kagaya step back, their own Super Devil auras momentarily eclipsed by the sheer newness of his ascent. Freedom. Power. Control.
The Dragon's Due: A King's Trial
Vali Lucifer and Albion manifested. Not a sound, but a shift in reality Kael felt in his bones. Vali's void-like eyes held predatory interest. Albion's grin was pure chaos.
"Took your time, hatchling," Albion rasped, the sound grating in Kael's enhanced hearing.
Vali stepped forward, his presence a crushing singularity Kael met with the calm pressure of a sovereign. "Super Devil. The standard is met." Vali extended his hand. The dark pact sigil on Kael's palm flared with icy agony. "But the wager's core remains. Prove you can fight beside me. Defeat me. Alone."
Kael met Vali's gaze. White flames, threaded with iridescent adaptation and stark rejection, ignited around him. He didn't speak; his will flowed to his peerage. They formed a silent, imposing ring. Observe. Contain. Do not interfere. The void became their Colosseum.
The Duel (Kael's Perspective):
Vali moved. Dividing Line slashed the void, aiming to halve Kael's being. Kael's Six Eyes saw the frequency, the anchor point. His adaptation shifted his core's resonance. The Line passed through him, scattering harmless motes. Resonance Shift: Complete.
Albion's Scale Mail flared. Draconic annihilation roared forth. Kael raised a hand. White Rejection-Fire met the wave. It ceased to exist. Conceptual Annihilation: Successful.
Vali vanished. Juggernaut Drive speed. A fist aimed to shatter his spine. Kael's Phoenix Ascendant wings flared – white fire and adaptive energy – carrying him skyward. The shockwave rippled beneath him. He retaliated – a Spatial Fracture ripped towards Vali, guided by Six Eyes, amplified by Super Devil might. The void screamed.
Vali Reflected it. Amplified. Kael's body hardened against spatial shear. The fracture washed over him. He countered with a Conqueror's Haki-infused Demonic Blast, charged with Vali's own reflected energy. Detonation. Light seared his vision.
They blurred. Speed. Power. Adaptation. Rejection. Kael felt Vali's stolen strength, Albion's chaotic fury. He used Divide to reflect Vali's attacks, amplified by his own core. He wove illusions (Aizen's memory), shredded by draconic senses. He struck with Haki-imbued force (Roger's echo), meeting Scale Mail with world-shattering impacts. Albion's frustrated roar echoed in his mind.
Vali gathered power. Juggernaut Drive strained the void. Divine Dividing: Apocalypse Fang. A beam of pure unraveling, deletion incarnate, lanced towards him. The Six Eyes screamed analysis. Adaptation pathways flickered, overwhelmed by scale. Orihime's power. The pure concept of Rejection.
Kael focused his entire being. Will. Vitality. Absolute Rejection. He raised his hands, palms outward. A Command.
"Santen Kesshun: I REJECT YOUR EXISTENCE!"
A dome of blinding white light erupted. Where the Apocalypse Fang touched it, the beam vanished. Unmade. Rejected from reality. Harmless sparks faded.
Vali's shock. A microsecond. A crack in the ice. Kael moved. Phoenix Ascendant Momentum. Riser's lesson. Super Devil power. Conqueror's Haki. A streak of white light. His fist, concentrated Rejection and Adaptive Force, slammed into Vali's Scale Mail.
KRA-KOOM!
The sound was divine armor shattering. It was the dark pact sigil on his palm exploding into white light before vanishing. It was Vali Lucifer hurtling backwards, trailing shattered scales and Albion's pained bellow, crashing through dimensions onto a distant obsidian plinth.
Silence. Kael hovered, wings folding. His breath steadied. The icy knot of the pact was gone. Only boundless freedom remained.
Vali rose. No rage. A chilling, respectful smile touched his lips. "I underestimated the Phoenix's metamorphosis, Kael Phenex." He inclined his head. "The wager is settled. You stand as an ally. A King." His gaze swept Kael's peerage. "Expect my peerage's call. The true game begins." Vali vanished.
Kael lowered his fist. He looked at his pantheon – gods, monsters, heroes bound by his will. Madara's Rinnegan gleamed. Kagaya observed. Gojo smirked. They had witnessed their King conquer a Dragon Emperor. The cage was dust. The path was his.