"You demon cult lackey! When my father returns, he won't let you off!"

  "You bastard! You'll die a horrible death!"

  Liu Yueyan's injuries gradually improved, and her temper returned.

  She started ordering Lin Lin around again.

  He fed her, and after half a mouthful, she spat it in his face, then resumed her non-stop cursing.

  Lin Lin didn't indulge her. He had been the one taking care of her all these days.

  Working hard, busy inside and out, only to be met with endless abuse—that was definitely unacceptable.

  Towards people who were ungrateful, he always struck back hard.

  In his past life, working in his father's lab, Lin Lin had learned how to tame the lab cats and dogs.

  Simply put: positive reinforcement logic.

  When the cat or dog did something wrong, punish it.

  Punishment methods were nothing more than spankings, bitter sprays, or stern reprimands.

  When the cat or dog corrected its mistake or did something right, reward it.

  Reward methods were nothing more than tasty treats.

  So now, what needed to be done with Liu Yueyan was punishment.

  Of course, Lin Lin was a good person. He wouldn't use violence.

  More importantly, Liu Yueyan's wounds had only just scabbed over; the stitches weren't even out yet.

  So he found a hemp rope and gave Liu Yueyan some "blueberry juice" hypoxia training.

  But Liu Yueyan was really stubborn. Even half-strangled, she kept cursing.

  "Cough... you don't dare strangle me to death. Uh... if you kill me, my father will kill you."

  Her severed stumps thrashed back and forth, completely disregarding that the wounds might reopen or the stitches might tear.

  Seeing this, Lin Lin had to bring out the big gun he had prepared earlier.

  A few years ago, Lin Lin had encountered a cultivation world item called Thunderfire Stone.

  Legend had it that these stones, after being struck by lightning, contained electrical energy.

  But once used, the stone's electricity was depleted.

  After Lin Lin bought some depleted Thunderfire Stones, he discovered they were natural graphene.

  With simple processing, he obtained a storage battery.

  By connecting them in series, he could increase the voltage.

  Using high-purity copper wire insulated with plant-based rubber, he got a high-voltage weapon.

  Then came the most painful part: charging.

  The basic principle of charging was to pass direct current through the battery in the opposite direction of discharge, restoring the active material in the battery.

  The best way to generate direct current was to cut through magnetic field lines.

  For that, he needed a T-shaped permanent magnet.

  Fortunately, this cultivation world really did have every kind of heavenly material and earthly treasure.

  Lin Lin actually managed to buy a huge natural strong magnet, which he hand-processed into a T-shape.

  Then he built a hand-cranked device, continuously using a conductor to cut through the magnetic field lines and generate electricity.

  After enduring this painful process for the time it takes half an incense stick to burn, Lin Lin had an epiphany.

  He was very likely the most promising researcher in this entire cultivation world.

  Time was precious. How could he waste it on such repetitive labor?

  So he entrusted this arduous task to a few outer disciples, casually tipping them some pocket money.

  After confirming the charging was complete, this device became a trump card in Lin Lin's hand.

  Now, it had a different use.

  For safety, Lin Lin reduced the number of batteries connected in series.

  If you come across this story on Amazon, it's taken without permission from the author. Report it.

  He strapped on the box containing the batteries, picked up the wires, and walked towards Liu Yueyan with a sinister grin.

  "You... what are you going to do!"

  Sensing something was wrong, Liu Yueyan panicked.

  In her eyes, Lin Lin, this demon cult henchman, was cruel. Who knew what other vicious treasures he hadn't used yet.

  "Nothing, just a little punishment!"

  He firmly strapped the naked Liu Yueyan back onto the operating table.

  Lin Lin raised the positive and negative wires in his hand and pressed them against her chest.

  A biting, unfamiliar pain instantly plunged Liu Yueyan's world into darkness.

  It was an experience like hell.

  The electric current drilled into her voluptuous body, like ten thousand knives piercing her internal organs, shooting straight to the crown of her head.

  Her back arched like a water snake, as if about to be crushed by infinite force.

  Three seconds. After just three seconds, Lin Lin released the wires.

  But those three seconds had seared into Liu Yueyan's heart a恐怖 pain no less than losing her limbs.

  Her breasts trembled involuntarily, like a broken doll.

  "I... I was wrong. I... I won't cause trouble anymore."

  Lin Lin asked expressionlessly, "From today, you, Liu Yueyan, are my dog, Lin Lin. Repeat what I said. Say it."

  Liu Yueyan was stunned for a moment. The reserve of a young lady made this humiliation hard to bear.

  "Not convinced? Fine."

  This time, it was her smooth, delicate lower abdomen that endured the hysterical torment.

  After a full five seconds, Lin Lin released the wires.

  Now soaked in fragrant sweat, Liu Yueyan couldn't even form a complete plea for mercy.

  As she gasped for air, she noticed the familiar unpleasant smell in the air.

  The source of that unpleasant smell was this cowardly body, yielding to the tyranny.

  What young lady? She was just a little puppy wetting itself on the chopping board.

  "Repeat it." Once Liu Yueyan caught her breath, Lin Lin coldly pressed again.

  Liu Yueyan's face flushed red. She threw away the last shred of dignity. "I... I'm a dog. Please let me go."

  "Since you're a dog, you should speak dog language, right."

  "?"

  Seeing Liu Yueyan didn't understand, Lin Lin promptly reminded her, "Bark like a dog. What, want another shock?"

  Before Lin Lin could press the wires against her, Liu Yueyan screamed in panic.

  "Woof woof woof woof! I'm a dog, woof woof woof woof!"

  According to the principle of positive and negative feedback, now was the time to stop pressuring.

  Lin Lin put down the battery box and wires, fetched a clean towel infused with incense, and carefully wiped away the sweat and urine from Liu Yueyan's body.

  "Let me clean you up first. I'll get you dressed right away. I had a tailor in Qingfeng Town alter the sleeves of this dress so they won't drag on the ground, perfect for you now."

  "You don't need to cultivate anymore, so you won't have to endure your father forcing you to take those medicinal meals every day. I found a chef at the Qingfeng Town inn to prepare delicious food especially for you."

  "Don't worry, I'll take care of you during this time. Later, I'll hire two maids from the foot of the mountain specifically to attend to you. If you're angry, take it out on them."

  "I'll also reattach your limbs. I've heard that many Core Formation techniques can regenerate severed limbs. In three years, when your father reaches Core Formation, he'll be able to restore your hands and legs."

  Lin Lin's tone was kind and gentle, a complete change from the cold cruelty moments before.

  This carved a brand of deep-seated terror into Liu Yueyan's soul.

  She felt his depth of cunning was something she could simply not comprehend.

  From a normal perspective, after suffering such humiliation for three years, Lin Lin must harbor boundless anger.

  But Liu Yueyan couldn't sense it. She could even feel that Lin Lin genuinely cared about her.

  When he wiped her body, his touch was gentle, yet attentive to every inch of her skin.

  When he changed her clothes, he was also careful, avoiding her wounds.

  At this moment, Liu Yueyan felt both fear and curiosity towards Lin Lin.

  In the following days, Lin Lin spent most of his time, besides caring for Liu Yueyan, making a microscope.

  The artisans invited from down the mountain didn't know how to work with glass and weren't willing to learn.

  Ultimately, the thinking of artisans in these small places was too conservative.

  This made Lin Lin realize that the spirit of scientific progress in this world had long been stifled by the pursuit of cultivation.

  Anyone slightly ambitious headed for cultivation, ignoring scientific research.

  Thus, if Lin Lin wanted to do research, he needed to find and train his own research assistants.

  Making lenses started with making glass.

  Lin Lin had a basic grasp of the process.

  Previously, he had used quartz sand to fire glass, and even used a blowpipe to shape crude beakers and test tubes.

  But this time, for lenses, the glass couldn't have bubbles.

  To achieve this, besides vigorously stirring the quartz sand during melting, he also had to control the temperature high enough.

  The entire process couldn't afford a single mistake.

  This was a difficult challenge. Fortunately, at this stage, he had the assistance of the outer disciples in the pill refinery.

  The next part was even harder.

  Lin Lin needed to grind and polish the glass according to the designed dimensions.

  In modern society, glassmaking is done with automated equipment.

  Also, many glass components contain heavy metals, making them relatively sturdy.

  But the glass Lin Lin fired was truly just glass—very brittle.

  And the equipment for grinding the glass was still the most primitive stone wheel.

  Even with the legendary top-tier craftsman bloodline, Lin Lin still made mistakes.

  "You... I need to use the toilet." Liu Yueyan's soft voice interrupted Lin Lin's thoughts.

  "Oh, okay."

  Lin Lin went over, carefully lifted her onto the wooden toilet he had designed, and secured her.

  After she finished, he cleaned her up and dressed her again.

  Then, he re-focused on making the lenses.

  Liu Yueyan didn't understand what this man was doing.

  But unconsciously, watching him grind the lenses, she became somewhat fascinated.

  The past was like smoke. Those dusty memories inadvertently drifted into her mind.

  Lin Lin's original appearance wasn't bad; in fact, he was quite handsome and debonair.

  When Liu Yueyan first came to Qingfeng Sect with her father, she had even secretly wanted to express her feelings to Lin Lin.

  Perhaps it was reserve, perhaps inferiority, or perhaps Liu Fenghai's twisted upbringing that led to the subsequent tragedy.

  That expression of feelings never got through. It even led to misunderstanding.

  This later caused Liu Yueyan to find excuses to disfigure Lin Lin.

  This was not only to tell other women that what she couldn't have, she would destroy.

  It was also to tell Lin Lin that he wasn't even worthy of refusing her.

  That's how a teenage girl who cultivated was.

  Not only innocent and naive, but also perverse and vicious.

  And now, having lost her hands and legs, she had long struggled countless times inside, feeling despair.

  She even felt that Lin Lin's treatment of her was just the retribution she deserved.

  But now, buried deep in her heart, that pure feeling, unknowingly, was sprouting anew...

  "Haha, I did it, I did it! The Leeuwenhoek of the cultivation world, that's me!"

  Under Liu Yueyan's astonished gaze, Lin Lin, crazed with joy, grabbed the polished lenses and dashed out.

  "Idiot!" Liu Yueyan cursed angrily, but the corner of her mouth inadvertently revealed a wry smile.