The steel tank groaned.It was a sound that made every hair on the back of my neck stand up. A deep, metallic moan, like a submarine diving too deep.

  "Pressure holding at 180 atmospheres," Mark II announced. "Temperature: 450 degrees Celsius. Warning: Structural integrity of the primary seal is fluctuating."

  "Hold it there," I wiped sweat from my eyes. My hands were shaking slightly inside the heavy alchemical gloves.

  We were attempting the **Haber-Bosch Process**.It sounds boring in a textbook: *Combine Nitrogen and Hydrogen to make Ammonia.*In reality, it means compressing explosive hydrogen gas to 200 times atmospheric pressure inside a super-heated steel bomb. If a seal failed, Sector 4 wouldn't just have an accident; it would have a crater.

  HISSSSS.A jet of invisible gas shrieked from a microscopic crack in the flange."Leak detected!" Amelia screamed, ducking behind a reinforced barrier.

  "Vent it!" I shouted. "Emergency release! Now!"

  I slammed the manual override valve. The steam whistle screamed as the pressure dumped into the exhaust stack outside. The groaning metal relaxed. The danger passed.

  I slumped against the cold concrete wall, ripping off my goggles.Failed. Again.

  "That's the third seal this week," Amelia said, coughing in the lingering steam. She looked tired. We both did. Her usually pristine robes were stained with grease, and she had dark circles under her eyes."Maybe Vane was right," she muttered. "Metal has a limit, Julian. You can't force air to be solid. Not without enchantment."

  "It's not the metal," I snapped, frustration boiling over. "It's the weld. There are microscopic imperfections in the joint. Bubbles of air. Mana residue. I just... I can't see them."

  I looked at the massive steel vessel. It was blind work. I was trying to thread a needle in the dark. Mark II could scan it, but Mark couldn't weld it. By the time he told me where the flaw was, the gas was already escaping.

  "I need better eyes," I whispered.

  "Get a Artificer's Monocle," Amelia suggested, taking a bite of a stale sandwich she'd brought from the cafeteria. "My cousin uses one for gem cutting. Costs two thousand gold."

  "No," I stood up. "I don't need a tool. I need an upgrade."

  The System Interface.

  I sat on a crate and closed my eyes."System," I subvocalized.

  The blue screen flickered into existence against the darkness of my eyelids. It had been months since I really looked at it. I had been so busy building the factory, so busy fighting the Academy, that I treated this... this *miracle*... like a background app.

  [Name: Julian Dong] [Class: Acoustic Engineer (Variant)] [Level: 15][STR: 12][AGI: 14][INT: 55] (Boosted by Mark II linkage)[PER: 18][Free Attribute Points: 1]

  There it was.The point I had earned from the Freshman Trial. The point I had saved because I was afraid of making the "wrong build."Analysis paralysis.But I wasn't a gamer anymore. I was an engineer with a leaking pressure vessel.

  This tale has been unlawfully lifted from Royal Road; report any instances of this story if found elsewhere.

  "Strength helps me lift the wrench," I muttered to myself. "Agility helps me run from the explosion. Intelligence helps me design the bomb."

  But none of them helped me *see* the leak before it happened.I looked at PER (Perception).In games, Perception was for spotting traps or finding loot.In physics, Perception was Resolution. It was the difference between seeing a blur and seeing the atoms.

  "System," I commanded. "Allocate 1 Point to Perception."

  [Confirm Allocation? This action is irreversible.]"Confirm."

  The Shift.

  It didn't feel like a level-up in a game. There was no fanfare.It felt like a headache.A sharp, stabbing pain behind my eyes that lasted for a split second, followed by a sensation of... clearing.Like popping your ears after a flight. Like wiping a dirty windshield.

  I opened my eyes.The factory floor looked different.No, that wasn't right. The factory was the same. *I* was different.

  I looked at the sandwich in Amelia's hand.I didn't just see bread. I saw the crumb structure. I saw the uneven distribution of moisture in the crust. I saw a tiny speck of dust settling on the lettuce, drifting in a specific aerodynamic arc.

  I looked at the air.I could see the heat waves rising from the cooling reactor. I could see the faint, shimmering distortion of the ambient mana field, swirling around Amelia like invisible smoke.

  "Julian?" Amelia asked, freezing mid-bite. "Your eyes. Pupils are... dilating."

  "I see it," I whispered.I walked back to the failed pressure vessel.Before, it looked like a smooth steel flange.Now? It looked like a mountain range.I traced my finger over the weld. I could feel the texture, but more importantly, I could *see* the stress lines.Right there. A hairline fracture, no wider than a red blood cell. It glowed faintly in my vision—a stress concentration point where the crystalline structure of the steel had been interrupted by a tiny pocket of nitrogen.

  "Mark," I said. "Scan sector 7-G of the flange. Confirm micro-fracture."

  "Scanning... Confirmed, Maker. Fracture width: 15 microns. How did you detect that without magnification?"

  "I just turned up the resolution," I grinned.

  I grabbed the welding torch.Usually, welding was a guess. You laid the bead and hoped it held.Now, it was surgery.I lowered the mask. Through the dark glass, the arc light was blinding, but my new eyes filtered it. I watched the puddle of molten steel flow. I saw the impurities floating to the surface and flicked them away with the rod. I saw the metal fuse at the molecular level.

  I stitched the wound in the steel. Perfect. Uniform. Airtight.

  "Amelia," I lifted the mask. The world was still painfully sharp, dangerously detailed. I would need to learn to filter this out later, or I'd go crazy counting dust motes. "Fire it up. Full pressure."

  "Are you sure?" Amelia hesitated. "If it blows..."

  "It won't blow," I said confidently. "I saw the atoms holding hands. They're not letting go."

  Success.

  Pressure: 200 Atmospheres.Temperature: 500 Degrees.Seal Status: 100%.

  The machine hummed. It was a terrifying, violent hum, containing enough energy to level the city block. But it held.And then, from the collection valve, a clear, pungent liquid began to drip.

  *Drip.**Drip.*

  The smell hit us instantly. Like a thousand dirty diapers concentrated into a perfume.Ammonia.

  "It smells horrible!" Amelia gagged, covering her nose and mouth. "This is your great victory? Stinky water?"

  "That stinky water," I bottled the sample, holding it up to the light. "Is the future, Amelia."

  "With this, we can make Ammonium Nitrate," I explained. "Fertilizer. We can grow crops in the dead of winter. We can feed the Lower District for pennies."

  I carefully placed the bottle in a padded crate."And," I added, my voice dropping lower. "If we mix it with fuel oil... we can make something else."

  "Bombs?" Amelia guessed, her eyes sad.

  "Leverage," I corrected. "The Academy has Fireballs. Now, we have High Explosives. We finally have a seat at the negotiation table."

  I looked at my hands. The Perception upgrade was still active. I could see the calluses, the grease stains, the tiny scars from a hundred failed experiments."System Alert," text scrolled across my vision, crisp and clear.[Perception Check Passed: You have unlocked a new Sub-Skill: Structural Analysis.]

  I smiled.The game had changed. I wasn't just building blind anymore.I could see the cracks in the world.And if I could see them... I could break them.