The storm had settled, but the battlefield had not.

  Kage and Lucifer circled each other, a deadly dance of predator and prey—though which was which remained unclear. Steam rose from the rain-soaked ground, creating a ghostly mist around their feet.

  The ground beneath them was a wasteland of destruction—cracked asphalt, melted cars, and scorched remnants of the city that had once stood here. The weight of their silent standoff drowned out the echoes of sirens in the distance, a world away from their private apocalypse.

  Kage's shadow armor pulsed, wrapping his body in undulating darkness, reinforcing his strength, enhancing his speed. Tendrils of living shadow writhed around his limbs, responding to his will. He could feel Lucifer watching, observing—his curiosity palpable in the charged air between them.

  Lucifer, too, was aware of his limitations now.

  He could feel it. His vessel was breaking. His divine form chipped away with every second, fractures spreading across his perfect skin like a porcelain doll slowly shattering. But his interest in Kage only grew, a scientist fascinated by an experiment yielding unexpected results.

  How much more could he push him?

  And then—they clashed.

  Fists met fists. Their movements blurred, their speed overwhelming the air itself, creating vacuum pockets that popped with small thunderclaps.

  Each exchange sent shockwaves rippling outward, distorting the misty air around them. Every impact cracked the earth beneath them, deepening the web of fissures across the ruined highway. They were evenly matched in raw combat—Kage's strikes met with Lucifer's own in a deadly ballet, neither gaining advantage.

  Lucifer twisted his body in an impossible motion, dodging a devastating finishing blow by mere millimeters, his perfect form bending in ways human anatomy shouldn't allow. The air whistled as Kage's fist passed where Lucifer's head had been a fraction of a second earlier. He was about to dismiss Kage's potential—until he felt it.

  Kage's shadow armor extended—striking with a reach beyond human limits, a jagged spear of darkness shooting from his shoulder.

  A sickening crack echoed as Kage's enhanced blow connected with Lucifer's jaw, stunning the divine being for a split second. The perfect face, marred by a fracture that spread like a spiderweb across his cheek.

  Kage followed up—relentless, merciless.

  A storm of heavy punches crashed into Lucifer's body and face, each strike breaking more of the pristine form he had possessed. Cracks spread with each impact, golden light beginning to leak from the fissures in his skin.

  Teleport.

  Lucifer disappeared—only for Kage's shadow to react just as fast, anticipating the move.

  Lucifer reappeared behind Kage, gripping his left arm with his right hand, fingers digging into flesh with inhuman strength.

  Then—he unleashed a wild gust of wind, a cyclone birthed from his will alone.

  The sheer force ripped the debris of their destruction away, sending cars flipping end over end, crumbling nearby structures as if they were made of sand. The roar was deafening, a hurricane compressed into a city block.

  Kage was nearly knocked off his feet, his body lifted by the overwhelming force—but at the last second, two shadow rods shot from his armor, planting him firmly in place like anchors, refusing to yield.

  Lucifer's eyes gleamed, appreciation mixing with frustration.

  "You must think this is a battle of attrition, my child." His voice was still harmonic, but his patience was waning, the dual tones discordant now.

  "We both know this vessel won't last. Now let me teach you what it means to fight a deity."

  Lucifer raised a hand—then abruptly stopped mid-gesture.

  His body twitched.

  His fingers curled—unnatural spasms, jerking slightly as if something was trying to control him from within. The movements betrayed an internal struggle, a war between host and invader.

  His amber eyes flickered, momentarily showing Kagawa's natural color before returning to their golden glow.

  Kage smirked, the expression out of place on his blood-streaked face.

  "A battle of attrition would be smart." His voice was sharp, pragmatic. "I know that body can't hold your abilities forever."

  Kage planted his feet, rolling his shoulders with deliberate calm. "I could play the long game. Let you keep rotting away until there's nothing left of you."

  Then, his smirk widened, feral and challenging.

  "But that's how a loser with no pride would fight."

  Lucifer's brows furrowed slightly, the first sign of confusion marring his perfect features.

  Then—the air shifted, growing dense with potential.

  Kage clasped the back of his hands together, fingers interlocking in a simple gesture that looked almost like prayer. The motion was elegant in its simplicity, yet ancient power stirred around him.

  Lucifer's eyes widened, recognition dawning.

  "Oh?" Lucifer thought to himself. "This child... has reached this level of sorcery?"

  The atmosphere shifted, pressure building like the moment before a thunderstorm breaks.

  The moon glowed fiercely from behind the dissipating clouds, casting a long shadow behind Kage. The battlefield—what remained of it—was silent, save for the faint crackling of electricity still lingering in the air.

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  This wasn't something Kage had studied. He hadn't trained for this, hadn't practiced this gesture.

  But in this moment, in this battle, he understood it—bone-deep knowledge surfacing from somewhere beyond conscious thought.

  The shrine didn't appear because he willed it into existence—it answered his defiance. It responded to his unyielding spirit, his refusal to be conquered.

  It was instinct. Pure, raw instinct, honed in the crucible of combat.

  Lucifer's flickering amber eyes locked onto him, intrigued by this unexpected development.

  And Kage's voice boomed through the abyss, resonating with power that shocked even him.

  "I understand it now."

  His shadow pulsed outward, his presence towering, eclipsing the destruction around them.

  "My concept. This fight."

  He exhaled slowly, steady despite his injuries.

  "And your death."

  The ground ruptured—a shrine materialized behind him in a flash of midnight energy.

  The Kanji of Death carved onto its gates, glowing with eerie blue fire.

  Kage's voice resonated through the abyss, carrying authority beyond his years.

  "Shrine Technique... OPEN."

  The battlefield collapsed into shadow, reality itself bending to his will.

  A shrine technique is the ultimate manifestation of a sorcerer's concept. It is not merely an attack. It is not merely a technique. It is a domain. A battlefield. A reality bent by one's will.

  To unlock a shrine, a sorcerer must not only master their concept—they must become one with it. They must embody its essence in every fiber of their being.

  Shrine techniques often require extensive preparation, ritualistic conditions, or an unwavering resolve.

  Few sorcerers in history had achieved this level of power.

  Even fewer could wield it in the heat of battle, summoning it through will alone.

  For Kage—this wasn't a moment of pride.

  It was a declaration.

  A defiance against fate itself.

  And then—the battlefield became his domain, his reality to command.

  Lucifer's own shadow betrayed him, stretching unnaturally as a clone of Kage emerged directly behind him, solid darkness taking physical form.

  Lucifer's wings flared open—he hovered, trying not to touch the blackened terrain that seemed to ripple with malevolent consciousness.

  His eyes gleamed, a predator recognizing another predator's territory.

  "Oh... this is lovely, my child."

  Lucifer's voice echoed in layers, appreciation genuine despite the circumstances.

  "Only the truest of sorcerers have managed this."

  Kage's shadow clones surrounded him, each an exact replica, moving with perfect synchronization.

  Lucifer's smirk faltered slightly, the cracks in his face widening.

  "But my child..."

  Lucifer's hands slowly came together, mirroring Kage's gesture with precise movements.

  "The best way to counter a shrine technique—"

  Lucifer's body twitched violently, a seizure racking his frame.

  His wings cracked, feathers falling like black snow.

  His skin peeled further, golden light pouring from the widening fissures.

  The Kanji of Death pulsated behind Kage, responding to his determination.

  Lucifer's hands trembled violently. He forced his voice out—a growl beneath his divine harmony, two voices struggling for dominance.

  "—is with my own shrine technique!"

  Then... silence. Nothing. Lucifer's golden eyes widened slightly in shock. His fingers, once so steady, now spasmed with unnatural twitches.

  This body...

  It wasn't enough. The realization hit him like physical blow.

  Kage's gaze snapped toward him, recognizing the opportunity, the moment of weakness.

  Lucifer's wings crumbled, dissolving into ash and light.

  His back split open, his body rejecting itself, golden radiance pouring from the wound.

  His vessel was failing.

  Lucifer screamed in agony as his body plummeted from the air, the sound piercing yet beautiful even in its suffering.

  Kage moved.

  Faster than before, shadow propelling him forward.

  Lucifer tried to teleport—but his movement stuttered, the distortion of reality failing like a damaged engine.

  Another clone of Kage appeared from the shadows beneath—impaling him from behind with a spear of darkness.

  Lucifer screamed—his voice no longer divine, the harmonics fractured and discordant.

  More clones emerged from the darkness, materializing from every shadow.

  Lucifer twisted violently, fighting with desperation now rather than confidence, as the Kage clones rained devastation upon him.

  Each blow peeled away his celestial skin, revealing Kagawa's mortal flesh beneath, the transition from divine to human progressing with each strike.

  Lucifer gasped, his harmonic voice warping, cracking like damaged crystal.

  Kage drove his fist into Lucifer's chest—impaling him, shadow extending from his arm to pierce the divine heart.

  Lucifer's body cracked—shattered—fragments of light and flesh exploding outward.

  All that remained were those golden, amber eyes—staring through the darkness, hatred and admiration mingling in their inhuman depths.

  His voice, once melodic, now drenched in fury and promise.

  "DON'T THINK YOU'VE WON, BOY."

  Blood spilled from his lips, glowing golden then fading to crimson.

  "My return is inevitable."

  His voice no longer a song—but a demonic roar, the sound of divinity corrupted.

  "And I will ensure... YOUR DEATH WILL BE BY MY HANDS!"

  Kagawa's body began to inflate—

  His flesh grotesquely twisting, ballooning outward, light pouring from every orifice.

  Kage's eyes widened as he realized what was happening.

  "...Oh, shit."

  A suicide attack. He's going to take me with him.

  The entire battlefield erupted.

  A final detonation, Lucifer's last act of defiance—a desperate gambit to mark his opponent forever, even in defeat.

  The explosion consumed everything—buildings, streets, the very air itself turned to flame and fury. The shockwave rippled outward for miles, shattering windows and collapsing structures.

  Kage's shrine crumbled, his clones dissolved, and he was thrown through the inferno like a leaf in a hurricane. The divine fire seared his flesh, burning patterns into his skin that would never fully heal. The pain was beyond description—not just physical, but spiritual, as Lucifer's dying essence carved itself into his very being.

  Then—

  Blackness.

  But the scars remained.

  Even in unconsciousness, even as his body fought to survive, the marks of that final explosion would stay with him forever. Twisted patterns of burn tissue across his arms and torso, a permanent reminder that he had faced a god and lived.

  When he finally awakened days later, pulled from the rubble by Guild members, the physical wounds had mostly healed.

  The scars had not.

  They never would.

  Present Time — The Depths of Madness

  The memory hit him like a physical blow.

  Kage screamed as the phantom pain erupted across his flesh—the divine fire burning through him again, every scar on his torso igniting with remembered agony. The chains that bound his wrists rattled violently as his body convulsed, reliving that final explosion.

  The scars caught the moonlight streaming through the barred window, creating a map of suffering across his skin. Even chained and broken, even after all this time, the marks Lucifer had left on him still burned when the memories resurfaced.

  The nightmare never truly ended. His body bore its permanent testimony to that battle, and sometimes—like now—the past clawed its way back to the surface with merciless clarity.

  He could feel that divine fire coursing through his veins, the same sensation from that moment when Lucifer's dying essence had carved itself into his very being. The scars pulsed with heat, reminding him of what he had endured, what he had survived.

  What he had defeated.

  Emi, who had just been leaving, turned back, her hand on the partially closed door.

  "What the hell are you screaming for?"

  Kage's maniacal laughter filled the chamber, bouncing off the cold stone walls.

  He let his head droop forward, his scruffy, unkempt hair covering his wild, gleaming eyes.

  The scars pulsed with remembered heat as his emotions peaked.

  "Oh, nothing, sis."

  His smile twisted, his body shaking in exhilaration rather than fear.

  "When the time comes... after I kill Haikito—"

  He paused, the memory still fresh and raw, the phantom burn of his scars making his voice shake with barely contained fury.

  "I will kill the devil himself."

  Again.

  Emi's eyes narrowed, something like concern flickering briefly across her features.

  She turned without a word, walking out, the heavy door closing behind her with finality.

  Kage's laughter grew louder.

  Darker.

  More unhinged.

  The laughter of a man who had been marked by a god and lived to tell the tale—who carried the proof of his defiance in every scarred inch of his flesh.

  The laughter of someone who had stared into the abyss, fought it, and emerged victorious but forever changed.