Leaving the chaotic hall behind, Haruto stepped into the silent main server room.

  The air here was refrigerated to a razor’s edge, hummed with the low-frequency thrum of cooling fans and the rhythmic, blue-white flickering of server indicators. It was a cathedral of data, cold and indifferent. Haruto didn't hesitate. He bypassed the secondary nodes and moved straight to the innermost host terminal—the sanctum of the core mainframe. With a practiced motion, he jacketed the ORION into the terminal’s physical port.

  "There it is," he whispered, his eyes reflecting the cascading waterfalls of code on the monitor. "Gemini, extract this residual process. Don't leave a single bit behind."

  "Understood. Initiating deep-packet inspection," Gemini replied. Her voice, usually so steady, carried a faint ripple of static—a sign of the processing load. "Analysis complete. Nago, this is not a normal program. I am detecting a signature that defies standard architecture: self-replicating, high-dimensional, and multilayered. There is no mistake. It is the initial prototype of the [R]—the same logic-plague we encountered in the post-apocalyptic wastes."

  The moment the words hit him, a cold, sharp fury ignited in Haruto’s chest.

  "R... Lyzer!" he hissed, the name tasting like poison. "That bastard. He was already tampering with this 'garbage' even in this era. He’s been seeding the end of the world since the very beginning."

  [R]. To anyone else, it was just a glitch. To Haruto, it was a logical cancer—the same entity he had fought across timelines and dimensions. He had seen it devour civilizations; he had been hired by Elis to purge the variant that was currently strangling her people. Now, the truth was laid bare: all those tragedies, all those broken worlds, stemmed from this single, festering point in time.

  But the system didn't wait for his epiphany.

  "Warning!" Gemini’s voice spiked. "Triggered by our detection scan, the [R] process is forcibly awakening! It has identified us as a threat and begun an aggressive infiltration of the mainframe. Infection rate: 12%... 20%... It is proliferating exponentially!"

  The console flared a sudden, violent blood-red. The cooling fans ramped up to a frantic scream as the hardware struggled to process the viral load. Haruto’s mind raced. The "future R" sample he’d used during Elis’s commission was gone, spent in that final battle. He was standing before a god-tier virus with a pocket knife.

  "Damn it, I don't have a physical sample!" Haruto slammed his fist against the terminal desk. "Gemini, scour the internal logs from when we isolated it in the Otherworld! Salvage every scrap of the logical structure of that 'future R'—capture it with one-billionth-of-a-second precision—and construct an impromptu patch!"

  "Impossible!" Gemini countered, the UI on the ORION flickering wildly. "The computational resources required for a reconstruction of that scale are beyond current hardware limits! Infection rate: 45%... Mainframe control is being usurped by the [R] kernel!"

  "Then use me!" Haruto snarled. "I’ll bridge the gap. I’ll compensate for the lacking cycles with my own neural overhead. Just focus on the reconstruction! Build the poison, Gemini!"

  Without waiting for a reply, Haruto bypassed the safety protocols and interfaced his thoughts directly with the system via the ORION’s neural link.

  A torrent of raw, unencrypted information scorched his brain. It felt like pouring molten lead into his skull. His vision fractured into a kaleidoscopic mess of hexadecimal strings, but he didn't pull back. He dove deeper, coldly navigating the digital abyss, pulling fragments of Gemini’s memory together like a man trying to catch smoke with his bare hands. He was assembling the "blueprint of the lethal poison" from the ghost of a future that hadn't happened yet.

  "Infection rate: 88%... 92%...!" Gemini’s avatar was barely recognizable through the distortion. "Nago, your synapses are redlining! We won't make it before the brain-gate collapses!"

  "Apply it regardless! Now!"

  The infection hit 99%. The entire server room was bathed in a strobing, nauseating crimson light. The very air seemed to vibrate with the [R]'s recursive scream: ALL MINE. ALL MINE.

  Just as the final bit was about to flip—just before Haruto’s mind was swallowed by the void—Gemini’s reconstructed "future poison" hit the server.

  The effect was instantaneous and violent.

  "...! Synchronization initiated," Gemini reported, her voice regaining its clarity. "Confirming a massive causality paradox. Errors are cascading through the [R]'s hierarchy. This is... beautiful, Nago. The prototype is being confronted with its own 'perfected despair'—a version of itself that has already reached the end of its evolution. It is beginning to negate its own existence."

  The two versions of the [R] overlapped, their logic structures clashing in a fatal contradiction. The prototype, unable to reconcile its current state with the terminal failure of its future self, began to tear itself apart. The red glow on the monitors shattered into terminal error logs, scattering like digital ash before dissipating into a harmless mist of null pointers.

  Support the author by searching for the original publication of this novel.

  "...Silence confirmed," Gemini said, her tone returning to its soft, neutral baseline. "[R] presence in the main server has been completely eradicated. The infection has been purged down to the root. With this, the future '??' route—the collapse of this timeline—has been logically broken."

  True silence returned to the server room, broken only by the steady, peaceful hum of the fans. Haruto stood there for a long time, his forehead pressed against the cool glass of the terminal, waiting for his heart to stop trying to hammer its way out of his ribs.

  Slowly, with trembling fingers, he detached the ORION.

  "Goodbye, past calamity," he whispered into the quiet room. He looked at the screen, where a single prompt blinked: SYSTEM OPTIMAL. "I won't let you taint her future again. Not this time. Not ever."

  He turned and walked toward the exit, his shadow long against the blinking lights of the servers. Behind him, the heart of the world beat once more, steady and clean.

  Would you like me to continue with Haruto’s exit from the facility and his first encounter with Elis after the purge?

  Leaving the chaotic hall behind, Haruto stepped into the silent main server room.

  The air here was refrigerated to a razor’s edge, humming with the low-frequency thrum of cooling fans and the rhythmic, blue-white flickering of server indicators. It was a cathedral of data—cold, indifferent, and smelling of ozone and ionized dust. Haruto didn't hesitate. He bypassed the secondary nodes and moved straight to the innermost host terminal, the sanctum of the core mainframe. With a practiced motion, he jacketed the ORION into the terminal’s physical port.

  "There it is," he whispered, his eyes reflecting the cascading waterfalls of emerald code on the monitor. "Gemini, extract this residual process. Don't leave a single bit behind."

  "Understood. Initiating deep-packet inspection," Gemini replied. Her voice, usually so steady, carried a faint ripple of static—a sign of the processing load. "Analysis complete. Nago, this is not a normal program. I am detecting a signature that defies standard architecture: self-replicating, high-dimensional, and multilayered. There is no mistake. It is the initial prototype of the [R]—the same logic-plague we encountered in the post-apocalyptic wastes."

  The moment the words hit him, a cold, sharp fury ignited in Haruto’s chest.

  "R... Lyzer!" he hissed, the name tasting like poison. "That bastard. He was already tampering with this 'garbage' even in this era. He’s been seeding the end of the world since the very beginning."

  [R]. To anyone else, it was just a glitch. To Haruto, it was a logical cancer—the same entity he had fought across timelines and dimensions. He had seen it devour civilizations; he had been hired by Elis to purge the variant that was currently strangling her people. Now, the truth was laid bare: all those tragedies, all those broken worlds, stemmed from this single, festering point in time.

  But the system didn't wait for his epiphany.

  "Warning!" Gemini’s voice spiked. "Triggered by our detection scan, the [R] process is forcibly awakening! It has identified us as a threat and begun an aggressive infiltration of the mainframe. Infection rate: 12%... 20%... It is proliferating exponentially!"

  The console flared a sudden, violent blood-red. The cooling fans ramped up to a frantic scream as the hardware struggled to process the viral load. Haruto’s mind raced. The "future R" sample he’d used during Elis’s commission was gone, spent in that final battle. He was standing before a god-tier virus with a pocket knife.

  "Damn it, I don't have a physical sample!" Haruto slammed his fist against the terminal desk. "Gemini, scour the internal logs from when we isolated it in the Otherworld! Salvage every scrap of the logical structure of that 'future R'—capture it with one-billionth-of-a-second precision—and construct an impromptu patch!"

  "Impossible!" Gemini countered, the UI on the ORION flickering wildly. "The computational resources required for a reconstruction of that scale are beyond current hardware limits! Infection rate: 45%... Mainframe control is being usurped by the [R] kernel!"

  "Then use me!" Haruto snarled. "I’ll bridge the gap. I’ll compensate for the lacking cycles with my own neural overhead. Just focus on the reconstruction! Build the poison, Gemini!"

  Without waiting for a reply, Haruto bypassed the safety protocols and interfaced his thoughts directly with the system via the ORION’s neural link.

  A torrent of raw, unencrypted information scorched his brain. It felt like pouring molten lead into his skull. His vision fractured into a kaleidoscopic mess of hexadecimal strings, but he didn't pull back. He dove deeper, coldly navigating the digital abyss, pulling fragments of Gemini’s memory together like a man trying to catch smoke with his bare hands. He was assembling the "blueprint of the lethal poison" from the ghost of a future that hadn't happened yet.

  "Infection rate: 88%... 92%...!" Gemini’s avatar was barely recognizable through the distortion. "Nago, your synapses are redlining! We won't make it before the brain-gate collapses!"

  "Apply it regardless! Now!"

  The infection hit 99%. The entire server room was bathed in a strobing, nauseating crimson light. The very air seemed to vibrate with the [R]'s recursive scream: ALL MINE. ALL MINE.

  Just as the final bit was about to flip—just before Haruto’s mind was swallowed by the void—Gemini’s reconstructed "future poison" hit the server.

  The effect was instantaneous and violent.

  "...! Synchronization initiated," Gemini reported, her voice regaining its clarity. "Confirming a massive causality paradox. Errors are cascading through the [R]'s hierarchy. This is... beautiful, Nago. The prototype is being confronted with its own 'perfected despair'—a version of itself that has already reached the end of its evolution. It is beginning to negate its own existence."

  The two versions of the [R] overlapped, their logic structures clashing in a fatal contradiction. The prototype, unable to reconcile its current state with the terminal failure of its future self, began to tear itself apart. The red glow on the monitors shattered into terminal error logs, scattering like digital ash before dissipating into a harmless mist of null pointers.

  "...Silence confirmed," Gemini said, her tone returning to its soft, neutral baseline. "[R] presence in the main server has been completely eradicated. The infection has been purged down to the root. With this, the future '??' route—the collapse of this timeline—has been logically broken."

  True silence returned to the server room, broken only by the steady, peaceful hum of the fans. Haruto stood there for a long time, his forehead pressed against the cool glass of the terminal, waiting for his heart to stop trying to hammer its way out of his ribs.

  Slowly, with trembling fingers, he detached the ORION.

  "Goodbye, past calamity," he whispered into the quiet room. He looked at the screen, where a single prompt blinked: SYSTEM OPTIMAL. "I won't let you taint her future again. Not this time. Not ever."

  He turned and walked toward the exit, his shadow long against the blinking lights of the servers. Behind him, the heart of the world beat once more—steady, rhythmic, and clean.