While the front of the shop maintained a peaceful, ordinary rhythm, Lin Yuan's internal calculations never ceased.
His greatest bottleneck remained his lack of personal protection. The high-tech Necronite suit that once made him untouchable was fundamentally crippled; its self-repair systems were stalled, and the damaged quantum core could only spare enough energy to project the liquid metal across his left hand and forearm. In a world with 2.4x gravity and highly dense matter, his baseline human flesh was fragile. One clean strike from a high-tier body-tempering master could shatter his internal organs.
He needed an exoskeleton—a temporary anchor to bridge the gap while Chronos recovered.
Lin Yuan began quietly purchasing heavy, high-density local ores from wandering miners: Black-Iron Grit and Heavy-Copper Ingots. Late at night, behind the barred doors of the smithing chamber, his black nano-infused hand became an industrial forge. The nanobots couldn't replicate the complex quantum fibers of his original suit, but they could manipulate the molecular structures of these primitive local metals.
He began constructing an inner lining beneath his grey robes. The nanobots systematically fused the dense black-iron into microscopic, interlocking hexagonal plates, perfectly tailored to his skeletal structure. It was heavy, primitive, and completely lacked the advanced electronic warfare suites of his old world—but it was solid. Bound together by thin networks of Necronite particles, this hidden metallic "cast iron shell" could absorb immense physical impacts, granting him a massive defensive trump card without altering his external appearance.
During the day, Lin Yuan stood calmly behind his sleek wooden counter, wiping down a display of Blood-Vitality Salves while keeping his ears tuned to the ambient chatter of the market street.
Two local mercenaries were leaning against the weapon racks, idly testing the balance of his standard iron sabers while whispering to one another.
"Did you hear about the Black Stone Ridge?" one muttered, keeping his voice low. "The Crimson Hawk Mercenary Corps sent a squad into the deep valley three days ago. Only one came back alive, completely crazed, babbling about a hidden stone cave guarded by a high-tier beast."
"A cave?" the other asked, eyes narrowing.
"They say it's the long-lost meditation cave of the Iron-Bone Elder from three decades ago. His signature manual, the Nine-Fold Vajra Forging Technique, is rumored to be sealed inside. If a rogue cultivator gets their hands on that, they could instantly establish a mid-tier clan in this outpost."
Lin Yuan's hand didn't falter as he polished the glassless case, but inside his mind, Chronos immediately flagged the keyword.
[Data Logged: "Nine-Fold Vajra Forging Technique". Mapping location: Black Stone Ridge, approximately 45 kilometers North-West. Analyzing local terrain risk...]
A genuine body-tempering manual. This was exactly what his library lacked—the raw data of high-tier local physical cultivation to help him reverse-engineer a method to unlock his body's potential under this world's physics.
Before Lin Yuan could analyze the rumor further, the heavy wooden doors of the shop creaked open, and the idle chatter of the mercenaries instantly died. The two warriors quietly lowered their weapons, bowed their heads submissively, and slipped out of the shop without a word.
A heavy, authoritative aura stepped into the room.
The customer was a young man in his early twenties, but his physique was staggering. His shoulders were incredibly broad, his neck thick, and his skin possessed a faint, metallic bronze sheen—a clear sign of advanced Skin-Tempering. He wore luxurious dark blue silk robes embroidered with the crest of the Gao Family, one of the three dominant Aristocrat clans that controlled Wu-Tan Outpost. Behind him stood two grim-faced guards carrying heavy polearms.
The young master's eyes swept across the neat, organized shop with an expression of cold, aristocratic indifference. He didn't look like a man who bought cheap mercenary junk. He looked like a wolf entering a rabbit's den.
"Are you the proprietor, Lin?" the young man asked, his voice deep and carrying a natural vibration that made the wooden shelves rattle slightly.
Lin Yuan smoothly stepped out from behind the counter, his expression perfectly calm, his posture slightly lowered to mimic the respect a common shopkeeper owed a wealthy clan member.
"This humble one is Lin Yuan," he replied in a flawless local accent, his eyes scanning the young master's stance, breathing patterns, and the subtle tremor in his right wrist. "How may the Gao Family's honored young master grace my modest establishment?"
The young man pulled a wrapped object from beneath his cloak and slammed it onto the counter. The heavy fabric fell away to reveal a shattered weapon—a magnificent, high-density Cold-Steel Spear, its shaft snapped completely in half and its blade deeply notched by some immense physical force.
"My name is Gao Xun," the young master said coldly, his eyes locking onto Lin Yuan's face like a hawk watching its prey. "My spear was damaged during a hunt against a second-tier Iron-Hide Boar. The blacksmiths in the inner district say the metal is too dense to re-forge without weakening the core, and they want two weeks to make a new one. I don't have two weeks. I heard from the market rumors that the new smith in the outer district has a unique hand with metal distribution."
Gao Xun leaned forward, a heavy, suffocating pressure radiating from his dense muscles. "Re-forge this blade. Keep its original weight, increase its structural density so it doesn't notch again, and have it ready in three days. Do it, and the Gao Family will reward you with twenty silver pieces and our protection. Fail, or ruin the metal..."
He didn't finish the sentence, but the cold glint in his eyes made his intent entirely clear. This was a high-stakes test—a prominent client whose favor could cement Lin Yuan's position, or whose wrath could destroy his quiet sanctuary in an instant.
Lin Yuan looked down at the shattered spear, a faint, imperceptible smile touching the corners of his mind. To the local smiths, manipulating highly compressed cold-steel was a monumental chore. To his nanobots, it was child's play.
"Young Master Gao's trust is this humble smith's honor," Lin Yuan said smoothly, bowing slightly. "Three days. Your blade will be returned, harder and sharper than the day it was forged."