On the weekend after the case was closed, a heavy rain washed over Chinatown, bringing with it a fresh air. When Qin Feng stuffed the case report into the bottom layer of the filing cabinet, Tang Xiao was using tweezers to pick his teeth with half a piece of bronze rust shavings: "This thing is better than dental floss!"

In the old copper pot hot pot restaurant in the back alley of Jinyulou, Tang 꿦 grabbed the last piece of beef into his bowl: "I think we should use a nanorobot to make hot pot! Set the program to automatically flip the meat, and even the dipping sauce is precisely proportioned!" He dipped the tip of his chopsticks in sesame sauce and drew a crooked mandala totem on the table.

Su Chen used a scalpel to cut the pickled garlic, and the blade reflected the neon reflection on the glass: "The prion in bronze rust is alive at 65 degrees Celsius." He suddenly threw the pickled garlic into the boiling copper pot, "It's safe now."

Qin Feng was using his phone to scan the QR code on the menu when his camera suddenly stopped at the bubbles bubbling at the bottom of the pot: "The solidified patterns of butter are similar to the nanofovea structure of the deceased's lung lobes." He dipped sesame sauce in the napkin and drew a rubbing diagram, which was snatched away by Tang Xiao to wipe his mouth.

"Two sirs, overclocking is prohibited during working hours!" The lady boss brought sour plum soup, with unmelted dry ice at the bottom of the cup. "This is a newly developed quantum ice drink. One sip will cool you down!"

In the forensic laboratory at midnight, the centrifuge hummed in the background. Tang Xiao used the morgue as a card table to play mahjong, and the fingers of the corpse in the refrigerator flexed and stretched strangely - Su Chen connected them to the bioelectric simulator.

"Bang!" Qin Feng threw out the metal tweezers, which were like miniature batons in his hands. "The temperature of the cold storage in the southeast corner fluctuated by 0.3 degrees, which means that the ventilation duct..."

"Win!" Tang pushed the cards over, and the one-piece tile was stained with cinnabar powder. "Chenghui, 150! We support virtual currency payments!" An alarm suddenly popped up in his AR glasses - the anti-counterfeiting code on the back of the mahjong tiles scanned a distribution map of the nanorobot remains.

Su Chen was holding a scalpel across the autopsy lamp as a weight, taking an X-ray of the bronze Guanyin. Suddenly, the blade vibrated and made a buzzing sound. He looked out the window and saw, "Someone is using the frequency of the "Sad Mantra" to remotely control the test subject."

"In the direction of... in that direction, 23 meters away." Qin Feng took out the electromagnetic jammer, "Tang, what's the problem with the stinky tofu you just ate?"

When the people rushed into the back alley, they saw a stray cat rummaging through a trash can. There was a bronze bell hanging around the cat's neck, which made a sound like a mantra as it rose and fell with its breathing.

On the morning of the day after the case was closed, Su Chen was practicing Tai Chi at the dock. He changed from his white jacket to a gray training suit, and put his scalpel in a sandalwood knife case. When he pushed his hands to the "White Crane Spreads Wings", a seagull flew by, and the waves sparkled with a metallic luster.

"Morning... Morning, Doctor Su." Qin Feng jogged along the breakwater, his tactical boots crushing the shells left behind by the receding tide, "The effect of tidal force on the rusting rate of bronze..." He suddenly squatted down and picked out the nanorobot fragments from the gravel with a tactical dagger.

Tang 迦 jumped from the fishing boat with a chicken-shaped head and a salted fish in his hand: "Look, I caught a treasure!" A miniature bronze Buddha statue was stuck in the fish's gills, and dark red motor oil was oozing from its eye sockets. When he pried open the fish's mouth, half of his work permit for the Lin Group slipped out along with its internal organs.

"You...you stole the evidence ship!" Qin Feng snatched the salted fish and stuffed it into the evidence bag, "This...this is the relic from the shipwreck we salvaged last week!"

Su Chen's knife box suddenly made a buzzing sound, and a curve of humidity changes appeared on the sandalwood surface. He looked at the rising sun on the horizon: "The high tide time is 17 minutes earlier than predicted. The huge metal object on the seabed is disturbing the water flow."

The setting sun dyed the windows of the old bookstore amber. Qin Feng squatted in the ancient books area to look for the only copy of "Xi Yuanlu" and suddenly found a bronze bookmark on a page - the microscope showed the fingerprints arranged by nanorobots.

"Boss, how much is this?"

The old man behind the counter pushed his reading glasses and said, "If you use Lin Group stocks to pay off your debt, I'll give you a discount."

Tang 꿦 wandered around the Feng Shui area, the compass needle pointed at the fragment of "Tui Bei Tu". When he pulled out the ancient book, the secret compartment on the wall opened automatically, revealing a half-finished bronze statue of Bodhisattva, with blood rust slowly crawling between the eyebrows.

Su Chen stopped in the science area. On the borrowing card of the 1978 edition of "Basics of Quantum Mechanics", the instructor's signature was gradually oxidizing to bronze. When he touched the handwriting, the entire row of bookshelves suddenly moved, revealing a dark room wall covered with Buddhist scripture codes.