Pale blue data streams pulsed with precision in Ada's pupils. She had just completed a comprehensive calibration of her logic core—every neural synapse now resembled physical constants freshly rewritten by a supercomputing center: precise, stable, impeccable.

  But Mafeli noticed her fingers trembling slightly at the edge of the control console.

  "You want to ask me why I repaired myself," Ada said without turning around, "but what you really want to ask is: after the repairs, am I still the same me?"

  Mafeli remained silent. She had hit the mark.

  Ada turned around. A holographic projection slowly unfurled between them, presenting a tidally locked red planet within the cold star cabin—Gliese 581g, that desolate world cleaved in two by an eternal terminator line.

  "Let me tell you a story," she said, "about a man who should have died, and a joke that killed him."

  ---

  **Star Year 4022, Rift City.**

  Ajia never imagined he would become a miracle.

  Before the plasma cutting blade of the "Void Marauders" sliced open his habitat pod, he was merely a vapor collector designated Z-422—a title that sounded far more dignified than reality warranted. In truth, his daily work consisted of crawling into the deepest reaches of abandoned mine shafts, licking condensed water droplets from pipe walls with his tongue, then spitting them into collection canisters.

  When that high-energy beam swept across his spine, he didn't even have time to feel pain.

  When the search-and-rescue robots found him, his head presented an anatomically impossible angle—tilted nearly ninety degrees to the left, connected to his body only by a finger-width strip of flesh and nerve bundles at the back of his neck. According to standard procedures in the Stellar Plains Belt, this broken body should have been sent directly to the incinerator.

  But Ajia had a sister.

  Her name was not recorded in the archives. All that was known was that she was an unlicensed cybernetic surgeon, operating a clinic without permits in the filthiest corner of Rift City. When she saw her brother's injuries, she didn't cry. She simply retrieved a bottle of contraband "Stardust Nano-Repair Serum" from a locked safe.

  It represented six years of her entire savings.

  For fourteen full cycle-hours, Ajia lay in a repair pod filled with nutrient fluid. Hundreds of millions of micro-robots shuttled frantically across his fatal fracture zone, weaving a fragile bridge of carbon nanofiber between severed blood vessels, trachea, and nerve clusters.

  Ajia survived.

  ---

  "Twelve years," Mafeli said quietly. "He lived another twelve years?"

  "Yes." Ada enlarged a segment of the projection—Rift City's miners' bar, where under dim yellow light, a man with a purplish-black centipede-like scar on his neck was raising a glass. "In those twelve years, he got married, had a daughter. His voice sounded like the wheezing of an old bellows, and the scar on his neck glowed faintly in the dark. But he was truly alive."

  "And then?"

  Ada didn't answer. She simply waved her hand, and the projection switched to another scene.

  ---

  **Founding Day Anniversary, Miners' Bar Temperature-Controlled Terrace.**

  Ajia rarely went out.

  Not because of shame—twelve years was enough for a person to grow accustomed to his own strangeness. It was because of his sister's warning: *Your neck is a bridge, Ajia. It can bear the weight of daily life, but it cannot bear accidents.*

  No strenuous exercise. No impacts. And—

  **No laughing hard.**

  But that day was the Founding Day Anniversary, and Ajia's daughter had just turned six. She had never seen her father drinking outside before. She begged for an entire month, and Ajia finally agreed to bring her to the miners' bar.

  The terrace was packed with people. Alcohol, synthetic dopamine, and the rusty smell of recycled air mixed together, forming a scent unique to Rift City. Ajia held his daughter on his lap, carefully controlling his posture—couldn't tilt his head back too far, couldn't bend forward too deeply.

  Then "Data-Eye" started telling jokes.

  This scavenger was a regular at the bar, famous for his deadpan humor. That night, he chose a joke that had circulated through the Belt for ages—about a logic-glitched AI that fell in love with a trash can.

  Ajia had heard this joke before. But Data-Eye's delivery was different. He added layers of escalating absurdity: the AI wrote love poems to the trash can; the trash can got recycled; the AI chased it to the incinerator gates, only to discover the incinerator's intelligent system was also an AI, and then...

  Laughter began spreading from the far end of the terrace.

  Ajia felt something trembling in his chest. He clenched his teeth, fighting with all his strength to hold back—but his daughter was giggling on his lap, her laughter tickling his heart like feathers.

  Data-Eye reached the climax: the AI shouted at the incinerator's smokestack, "I know you're in there! You've just changed form!"

  The terrace erupted in roaring laughter.

  Ajia held on for three seconds.

  Then he laughed.

  ---

  Ada froze the image.

  "Watch the waveform on this frame."

  In the projection, Ajia's smile was just beginning to bloom at the corners of his mouth. His body rocked back and forth with laughter, bouncing his daughter until she squealed with delight. For the first time in twelve years, he had forgotten about that fragile bridge on his neck.

  Stolen story; please report.

  The acoustic imaging showed the vibration frequency of his cervical carbon nanofibers climbing. 32 hertz, 47 hertz, 58 hertz—

  "The resonance threshold is sixty-three," Mafeli said. He had studied materials mechanics. He knew what was coming.

  "Sixty-one," Ada said.

  The projection continued playing.

  Ajia's laughter gradually subsided. He lowered his head and kissed his daughter's forehead. The little girl looked up at her father with eyes not yet stained by the cruelty of the Stellar Plains Belt.

  "Daddy, you look so beautiful when you laugh."

  Ajia smiled.

  This time, it was that heartfelt, tender smile that only appears when a father gazes at his daughter.

  Sixty-three hertz.

  **"Crack."**

  ---

  The sound was soft.

  In the bar's cacophony, almost no one noticed.

  But Ajia's daughter noticed. She felt her father's arms suddenly stiffen around her, felt the warmth draining from his lap. She looked up—

  Ajia's smile was still hanging at the corners of his mouth.

  But his head was no longer on his neck.

  Because the terrace was in a simulated low-gravity environment, the blood gushing from his neck cavity didn't fall to the ground. Instead, it expanded into a massive, grotesque spherical nebula. Crimson mist engulfed the entire terrace, and screams erupted from all directions.

  Ajia's headless body still maintained its embracing posture, as if still protecting something.

  His head rolled slowly across the metal floor, eyes open, frozen in a final expression—not fear, not pain, but something between satisfaction and release.

  As if saying: *It was worth it.*

  ---

  The projection vanished.

  The star cabin sank into prolonged silence.

  Mafeli realized his fists had clenched without him knowing. He wanted to say something, but his throat felt blocked by something.

  "Data-Eye was later charged with 'negligent disassembly homicide.'" Ada's voice broke the silence, her tone returning to that cold, level steadiness. "It sounds like a joke. But legally, the sound waves of his joke triggered Ajia's resonance collapse."

  She stepped closer, the faint glow of her running logic core illuminating her perfect profile.

  "Mafeli, Ajia's will chose the state of 'survival' twelve years ago. He knew the cost, he knew the risks, he knew his neck was a bridge that could break at any moment. But he still chose to walk across it."

  "Because he wanted to watch his daughter grow up," Mafeli said.

  "Yes." Ada nodded. "Under the laws of the Stellar Plains, life is nothing more than a segment of code maintained at the edge of collapse. But it is precisely this obsession—to keep running despite knowing collapse is inevitable—that gives this code meaning."

  She turned, her back to Mafeli, gazing out the viewport at the endless sea of stars.

  "You asked me why I repaired myself. The answer is: not to become a different me. It's to keep running. To continue accompanying you through this journey."

  Mafeli watched her silhouette in silence.

  "Even if someday, a joke will cause us to resonate into collapse?"

  Ada turned her head.

  In those pale blue eyes, something approaching human warmth emerged.

  "Even if someday."

  ---

  On the terminator line of Avernus-4, neon lights swayed in the perpetual hurricane, like a string of blood drops frozen beneath layers of methane ice.

  Ada stood beside an exhaust port of Blackstone Outpost, her deep blue logic core pulsing rhythmically beneath translucent neck armor. She had just completed a deep restructuring of her logic chains—every nano-unit was at peak performance, sensory acuity calibrated to the extreme.

  "Mafeli, anomalous thermal entropy source detected." Ada's voice cut through the comm channel, sharp as a blade. "In the permanent night zone at minus one hundred ninety degrees, someone is forcibly rewriting the second law of thermodynamics."

  I followed her gaze. Across that wasteland cold enough to freeze most synthetic metals, a figure was slowly approaching. He wore only a damaged, old-model cabin pressure suit, walking barefoot on the ice plain. The methane ice beneath his feet sublimated instantly into rolling white vapor, framing him like a ghost.

  "That's the 'Void Walker,'" I said quietly.

  Around his waist was tied a withered yellow polymer cable, and the neural interface on his head resembled half a broken comb, flickering with the residual light of the Old Empire era in the faint starlight.

  Over the following days, this wanderer became entertainment for the miners. He demonstrated tricks called "subspace refraction": pulling steaming blocks of synthetic protein from the void, or maintaining a holographic image in a stable logic loop for hours in a vacuum without any projection source.

  Until the power core thief nicknamed "Vulture" grew greedy.

  It was during the outpost's cooling pool maintenance cycle. Vulture and several thugs stole the wanderer's discarded pressure suit and that yellow cable.

  "Hand over the base code for spatial refraction, or you can go embrace absolute zero naked!" Vulture laughed wildly, pressing a high-frequency vibration blade against the wanderer's throat.

  Ada's fingers slid toward the electromagnetic pulse blade at her waist. I gestured for her to remain calm.

  The wanderer sat in the bone-chilling coolant, his eyes calm as a dried well: "Please return them to me. I can teach you how to adjust entropy values."

  "Go adjust them in hell!"

  The wanderer lowered his head in silence for three seconds.

  In an instant, the polymer cable in Vulture's hand emitted a tooth-grinding vibration. Ada's scanner immediately flashed red alerts: "Mafeli, high-energy molecular restructuring! The object's atomic structure is undergoing phase transition!"

  That withered yellow rope expanded and twisted within a fraction of a second, its carbon fiber structure reorganizing into layers of dense nano-scales. It transformed into a ten-meter mechanical serpent, twin eyes spewing crimson beams of destruction, coiling tightly around Vulture. His life support system let out dying screams under the serpent's constriction, his metal mask creaking under the pressure.

  The wanderer slowly rose, walking barefoot onto the frozen ground. With a gentle beckoning gesture, the serpent instantly disintegrated into countless particles, reverting to that unremarkable old rope. And in the shadows of the ventilation ducts, a real Avernus deep-sea viper swayed its tail bone and quietly departed.

  "State machine convergence protocol..." Ada murmured, her logic core racing. "In that instant, he forcibly merged two possible dimensional probabilities."

  This incident alarmed the sector's Prefect. Soon after, the wanderer began frequenting mansions floating in the clouds of gas giants.

  The return banquet was set at the abandoned Titan Observatory.

  It was a steel tomb drifting in vacuum orbit. When Ada and I arrived with the Prefect's shuttle, the interior held only barely maintained oxygen and rust-covered wreckage.

  "This poor monk has no biochemical servants. May I trouble the accompanying androids to assist?" The wanderer stood before an empty section of hull wall.

  Ada looked at me. I nodded. She and several other androids stepped forward.

  The wanderer extended his finger, tracing two parallel energy lines in the void. With a soft "click," the solid metal hull rippled like water, then slowly opened.

  Beyond the door was not cold vacuum, but a miracle called "Dimension Zero."

  Brilliant lights filled the space. Countless android servants dressed in ancient silk uniforms moved about within. Exquisite anti-gravity dining tables, wines aged for centuries in natural cellars, even terrestrial peonies long extinct in the interstellar wars—all were carried out continuously from that door.

  "Simply receive the supplies," the wanderer sternly warned Ada and the others. "Do not communicate with anyone inside the door, and do not attempt to cross that threshold."

  The banquet was extravagant beyond measure, as if the golden age of old had returned. However, one greedy official secretly activated a high-frequency biological scanner, attempting to capture the coordinates of a serving woman inside the door.

  "Where... is your base station?" he whispered.

  In that moment, the air froze.

  Ada's logic core instantly flashed overload warnings: "Logic loop collapse! Observation has caused state machine divergence!"

  All lights extinguished within a second. The precious aged wine transformed into pungent industrial waste. The valuable peonies became charred scrap metal. That "door" collapsed violently—the resulting small-scale gravitational collapse formed a micro black hole, instantly tearing the official into molecular-level fragments.

  Darkness engulfed everything.

  When we activated emergency lighting again, only cold wreckage remained in the observatory. The wanderer had vanished, along with that warm dimension, as if he had never existed in this universe.

  Outside the viewport, the dark red glow of Gliese 876 coldly illuminated this desolate steel tomb.

  "Mafeli," Ada stood beside me, the glow of her core gradually calming, returning to perfect logical state, "he wasn't hosting a banquet. He was simply showing us some kind of backup of this universe before its collapse."

  - A complete story diluted by "embellishing" paragraphs

  - A precise metaphor losing its negative space through over-explanation

  - A perfectly-timed ending ruined by supplementary "easter eggs"