Ren was dragged from his prison cell in silence.

  Chains wrapped around his wrists, cold against his skin, but his mind was far from the stone corridor and the watching guards. His thoughts were still trapped in the vision—the endless void, the demon’s voice, the truth buried beneath centuries of lies.

  The blade remembers.

  The words echoed again and again.

  He did not understand what Emma no Kage had truly meant, only that something inside him had changed. The trance had faded, but its weight remained, heavy and suffocating.

  They brought him into the inner room.

  The chamber was vast and hollow, carved deep into the mountain itself. Ancient markings lined the walls, faintly glowing beneath the torchlight. Far below this place—hidden beneath layers of stone and seals—rested Kokuen, the Black Blade.Ren could feel it.

  Watching him.

  Only a few stood within the chamber.

  The elders sat high above, their faces unreadable.

  Tetsuyu stood to the side, tense and silent.

  And Akari…

  Ren’s breath caught.

  She stood before him, calm as ever, her hands folded neatly in front of her. She said nothing. No protest. No plea. Everyone expected this to be the end.

  Everyone expected Ren to die.

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  The chains were removed.

  Kaien stepped forward, blade already drawn.

  “This is your final judgment,” one of the elders said. “We will see whether the Kurogane Way has succeeded.”Ren lifted his head slowly.

  “If I win,” he said, his voice steady, “I walk free. I choose my path. I decide whether I kill or not.”

  A pause followed.

  “And if you lose?” the elder asked.

  Ren met Kaien’s gaze.

  “Then I will become what you want,” he said. “A merciless soldier.”

  Kaien raised his blade in agreement.

  Before the fight began, Akari stepped forward.

  She still said nothing.

  She simply reached out and placed a hand on Ren’s chest.

  A single tear fell from her eye.It landed against his armor.

  Ren froze.

  It was the first time he had ever seen Akari cry.

  She pulled him into her arms, holding him tightly, her voice barely more than a whisper.

  “My son,” she said, her words trembling, “always do what you believe is right.”

  Then she stepped away.

  The fight began.

  Kaien struck first—fast, precise, unforgiving. Ren barely had time to react as steel clashed violently through the chamber. Each blow carried killing intent, each strike meant to end the fight quickly.

  Ren fought back.His movements were sharp, controlled, almost unnatural. He blocked and countered without hesitation, exactly as the Kurogane Way demanded. The elders watched closely.

  Good, they thought. The hypnosis worked.

  The battle grew fierce. Sparks flew as blades collided again and again. The stone floor cracked beneath their feet, pressure building with every strike.

  Tetsuyu clenched his fists.

  Something was wrong.

  Kaien pressed harder, forcing Ren back. With one final clash—

  CRACK.

  Ren’s blade shattered.

  The sound echoed unnaturally, as if it had reached far beyond the chamber.Deep below them, a seal fractured.

  Kaien raised his sword.

  “No hesitation,” he said coldly. “That is the Kurogane way.”

  He moved to strike.

  “Stop!” Akari cried.

  She stepped between them.

  The blade pierced her stomach.

  Blood spilled across the stone as Akari collapsed into Ren’s arms.

  Time shattered.

  “Mother…” Ren whispered.

  Kaien showed no remorse.

  “Sentiment makes you weak,” he said.Something inside Ren broke.

  The Cursed Mark on the back of his neck burned alive.

  A monstrous surge of aura erupted from his body, shaking the chamber violently. The ground beneath them cracked open, ancient markings flaring as the seal below collapsed entirely.

  Ren screamed.

  “What have you done to my mother?!”

  His eyes burned crimson.

  From the depths below, Kokuen awakened.

  A thousand demon spirits tore through the fractured ground, screaming into the human world—twisted shadows that clawed at reality before vanishing in seconds, unable to fully manifest.

  But they were never meant to remain.The mark consumed Ren.

  Shadow devoured flesh, erasing Ren Kurogane completely. When the storm of aura finally settled, nothing remained of him.

  Only silence.

  Then—

  A figure stood where Ren once had.

  Tall. Majestic. Terrifying.

  Emma no Kage.

  In his hands rested a dark cocoon, pulsing faintly with power.

  Tetsuyu fell to his knees.

  Akari lay motionless.Kaien stood frozen in disbelief.

  Emma no Kage smiled.

  “At last,” he whispered, “the blade has chosen.”

  And the world crossed the point of no return.