A perfect crime? To me, it's full of flaws!

Inside the municipal bureau's office, the air conditioner was blowing cold air.

Qi Feng slumped on the leather sofa, looking like a boneless slime.

He held a bottle of iced cola in his left hand and rhythmically patted his stomach with his right, making a series of dull thuds.

"belch--!"

A long, lingering burp echoed in the quiet office, making the pen holder on the desk shake.

Liu Yuanshan was looking down at the case file, his brows furrowed into a deep frown. Startled by the hiccup, his hand trembled, and the nib of his pen drew a harsh black line on the paper.

He took a deep breath. "This little apprentice did well today, I'll hold back!"

"Hiccup—! Hiccup!"

Two more sounds rang out in quick succession.

Qi Feng let out a satisfied sigh, casually placing his smelly foot, clad in a military boot, on the mahogany coffee table, muttering, "Master, this cola is flat. Next time we need to get canned cola; that stuff is really strong, it hits right in the head."

Liu Yuanshan's temples throbbed violently.

He put down his pen, slowly raised his head, and his eyes flashed with murderous intent: "Qi Feng, do you think this is your warm bed at home?"

"Master, you can't say that. All police officers are one family, and the Municipal Bureau is our home." Qi Feng grinned, took another big gulp, and let out a comfortable groan. "Besides, I've found the evidence and done the profiling. Now it's the investigation phase, anyone can do that. Just let me rest for a bit."

Liu Yuanshan's hand slowly moved towards his waist.

A "click" sound.

That was the sound of a belt buckle coming undone.

Lin Haitang was sitting next to him organizing notes. When she heard the voice, she didn't even lift her eyelids. She silently moved her chair back three meters and used her tablet to cover her face.

"You little brat, I think you're getting cocky if you don't discipline yourself for three days!" Liu Yuanshan suddenly stood up, pulled out his worn-out leather belt, and lashed it out in the air with a loud crack.

Qi Feng's pupils contracted sharply, and he sprang up from the sofa like a cat whose tail had been stepped on, his movements so agile that he didn't seem like someone who had just finished working overtime.

"Holy crap! Old man, are you serious? This is violent enforcement! I'm going to report you to the inspector!" Qi Feng frantically circled the sofa.

"Go ahead and sue me!" Liu Yuanshan chased after him relentlessly, belt in hand. "If I don't whip your ass into eight pieces today, you won't know why the sun in S City is so red!"

"My dad has never hit me!" Qi Feng slid in to dodge the belt, still making sarcastic remarks.

"You orphan, of course your dad can't hit you!" Liu Yuanshan roared until his voice was hoarse. "But Master is also a father! I'm your biological father now, and it's only natural for me to exercise my guardianship!"

"Hey, hey, hey! Talk is cheap, but don't try to take advantage of me! I treat you like a mentor, and you want to be my father?!"

The office erupted into chaos.

Qi Feng, relying on his youthful agility, repeatedly jumped between the desk, chair, and water dispenser, and Liu Yuanshan couldn't even touch a corner of his clothes. He was so angry that his old face turned red, and he held his waist and gasped for breath.

Lin Haitang covered her face, peeking at the scene through her fingers, and sighed helplessly: "Qi Feng, just say less."

"No! This is a matter of principle!" Just as Qi Feng was about to continue his reckless behavior, the office door was suddenly flung open with a loud bang.

Qin An rushed in like a gust of wind, clutching several printed files tightly in his hand. He had clearly run very fast; his chest was heaving violently, and his forehead was covered in cold sweat.

Seeing the mess inside, Qin An was stunned for a moment, then disregarded everything else and shouted, "Master! Stop hitting him! We've identified the suspect!"

The belt in Liu Yuanshan's hand froze in mid-air, and Qi Feng also stopped his movement as he was about to climb out of the window.

"Speak!" Liu Yuanshan tightened his belt around his waist, his eyes instantly switching from "furious old father" back to "iron-blooded veteran detective".

Qin An slammed the file on the table, pointed to the photo, and said, "Zhou Decai, 42 years old, former deputy director of the Department of Cardiothoracic Surgery at the First People's Hospital of S City. Three years ago, his medical license was revoked due to a medical accident, after which he opened a private plastic surgery clinic in the north of the city. The key point is! He is left-handed, and the accident three years ago resulted in a fracture of his left tibia, leaving him with a slight limp!"

Qi Feng leaned closer, staring at the man in the photo.

The man in the photo wore gold-rimmed glasses and looked refined, even scholarly. But Qi Feng's eyes narrowed suddenly, and "My Eyes Are a Ruler" activated instantly.

In Qi Feng's vision, this two-inch photo is infinitely magnified and deconstructed.

Although the photo is from several years ago, the distance between his eyes, the habit of his pupils contracting, and the extremely restrained curve of his lips completely match the indifferent man pushing the cart in the surveillance video.

More importantly, the old photograph in the black tin box that Qi Feng brought back from the public toilet showed a man whose face was half burned, but the remaining outline was practically a "disfigured version" of Zhou Decai.

"It's him." Qi Feng abandoned his nonchalant attitude, his tone as cold as ice. "The woman in that photo should be his mother. The faces of the first three victims all bear a 60% resemblance to that woman."

Qin An nodded, his eyes filled with awe at Qi Feng's profiling abilities: "It matches perfectly. We discovered in his clinic's back-end system that he had been frequently purchasing large doses of formalin and medical bone wax over the past six months."

"Where is the clinic?" Liu Yuanshan asked in a deep voice.

"No. 14 Qingsong Road, North of the City, 'DeCai Medical Aesthetics'," Qin An replied quickly. "I've already had the video surveillance department retrieve the footage from around the clinic, and they found that black van parked in the warehouse in the clinic's backyard!"

"Haitang, apply for a search warrant and an arrest warrant immediately!" Liu Yuanshan ordered while putting on his coat. "Qin An, notify the SWAT team to blockade Qingsong Road. This high-IQ psychopath definitely has weapons; we need to act fast!"

"yes!"

The group hurriedly headed outside.

As Qi Feng passed by the table, he casually grabbed an unopened can of Coke and stuffed it into his pocket.

"Hey, Sister Haitang, stand behind me when we're catching people." Qi Feng leaned closer to Lin Haitang, raising an eyebrow mischievously. "I just leveled up my fighting skills, I'll make sure you're well protected."

Lin Haitang rolled her eyes at him, but her tone wasn't as cold anymore: "You should take care of yourself first, or you'll end up being sewn up like a doll."

"That won't work, my skin is too thick, he can't get the needle in."

……

Ten minutes later, three police cars with sirens blaring cut through the night sky and headed straight for the north of the city.

Qi Feng sat in the back seat of the car, toying with the black diary he had brought back from the public restroom.

The cover of the diary was somewhat worn; he had flipped through a few pages in the chaos. The handwriting inside was extremely neat, so neat it was unsettling. Each page recorded an "experiment," from how to select "materials" to how to "artistically process" them.

[June 14th, rain. The third piece was a failure. Her skin lacked elasticity, and there were obvious wrinkles at the seams. I need something more perfect. The girl in the mall was nice; her jawline resembled my mother's.]

Qi Feng closed the notebook, his stomach churning.

This is not human at all; it is a demon in human skin.

"System, if I rush in now and cripple him, would that be considered a violation of the rules?" Qi Feng asked in his mind.

[Ding! Host, please note that the law is the last line of justice. Violent torture does not increase experience points; only by bringing the perpetrator to justice can you obtain the 'Just Trial' reward.]

"Tch, so rigid." Qi Feng curled his lip.

The car quickly stopped in front of "DeCai Medical Aesthetics".

This is a quiet three-story building in the middle of the city, with a very high-end exterior. The marble exterior gleams coldly under the streetlights. It is already late at night, and the clinic is pitch black except for a faint blue light coming from a window on the second floor.

Qi Feng was very familiar with that blue light.

That's the light from the ultraviolet disinfection lamp.

"Group one, follow me through the main gate; group two, surround the warehouse in the backyard; group three, take charge of perimeter security!" The criminal police captain calmly directed the operation, holding a walkie-talkie.

The SWAT team members crouched low and dispersed quickly like ghosts.

Qi Feng stood at the main entrance with Liu Yuanshan, while Qin An followed the special police into the scene.

"Master, I feel something is wrong." Qi Feng suddenly spoke, his eyes fixed on the blue-glowing window on the second floor.

In his field of vision, a huge, radiating red square was enveloping the entire building.

In the center of that red box, a flashing, purplish-black exclamation mark appeared.

This is a warning that the system has never issued before.

"What's wrong?" Liu Yuanshan asked in a low voice, pressing his hand on the holster at his waist.

"Too quiet," Qi Feng murmured. "This kind of person has extremely strong obsessive-compulsive disorder. We came here in such a grand manner; there's no way he wouldn't have noticed. Unless…"

"Unless he's waiting for us."

Just as Qi Feng said, at that moment, the curtains on the upper floor of the building opposite were suddenly pulled open.

A man in a pristine white coat stood quietly by the window.

He held a glass of red wine in his hand, and through the glass, he slightly raised it towards the police car downstairs, a graceful yet eerie smile playing on his lips.

"Bang--!"

A muffled thud.

It wasn't the sound of gunfire, but rather the sound of some kind of pressure being released.

"Oh no! It's gas!" Qi Feng's nose suddenly caught a faint, strange odor.

"Everyone retreat! Retreat now!" Qi Feng roared at the top of his lungs.

However, it was too late.

Zhou Decai, who was observing from the shadows, gently pressed a button on one of the remote controls in his hand.

"Art is an explosion."

"boom--!!!"

The intense explosion and flames instantly engulfed the entire second floor, and the massive shockwave knocked two SWAT officers who had just rushed to the door to the ground. Glass shards flew everywhere like hailstones.

"Qin An!" Liu Yuanshan's eyes were bloodshot.