"This matter," Mu Guijiu patted Qian Jin’s shoulder, "is simpler than you imagine. Sometimes, human lives really aren't worth much... Go sleep. I’ll watch this lad for you. If you figure something out, come find me."

Qian Jin nodded and left Mu Guixin’s room, looking up at the starry sky. This decision might bring great instability to Yongliu, but if he didn't make it, who knew what the Lei family would do next?

The female relatives, including Gu Yue Jiaying, had long since fallen asleep. Qian Jin relaxed and returned to his room, immediately pulling the magic hat over his head and drifting off to sleep.

In the small villages of the Endless World, tranquility reigned eternal; people were always engrossed in their own tasks, and seldom did anything manage to divert their attention.

Qian Jin stood on the quiet, harmonious street, the turmoil in his heart gradually subsiding. He raised a hand to rub his forehead and walked toward Uncle Black’s courtyard, wondering if he should head to the Enrake Battle Chamber to spar once, to ask that Teacher Enrake if there was any way to unlock someone else's Battle Realm.

"Boy, come here..." Oulala beckoned repeatedly from inside the room, "Try this new potion of mine..."

Qian Jin shivered. Those new potions were truly terrifying. Who knew what bizarre concoction the mysterious alchemist Oulala had cooked up this time?

The liquid, red as fresh blood, churned like lava in the glass tube, sending wisps of acrid scent into his nostrils that brought on a pain threatening to split his skull.

Qian Jin grimaced, looking at the mysterious potion in his hand, his gaze curious as he watched Oulala, eager to know what strange brew he was testing today.

"This is a Hyper-Speed Full Body Restoration Potion," Oulala declared proudly, glancing contemptuously from the corner of her eye toward the Adams Potion Shop across the way. "A thousand times more potent than those shoddy potions!"

Qian Jin swallowed. This Oulala really loved competing with Teacher Adams, didn't she? For her, who preferred human experimentation, to actually create a restorative mysterious potion was surprising. But would this potion really work?

Two gazes, sharper than any blade, suddenly shot from Oulala’s eyes! Qian Jin sighed, "Teacher Oulala, my body is fine right now. I'm not injured, nor have I suffered any loss. This mysterious potion..."

"Precisely because your body is normal that I’m making you drink it..." Oulala waved her hand impatiently, giving the distinct impression that if he didn’t drink it now, she would personally force him to.

"Fine, I'll drink it," Qian Jin sighed again. "Looks like I'll have to withstand this surge of potency before I go find Teacher Enrake..."

The potion, spicy like boiling water, flowed down his throat. Qian Jin almost suspected he might be permanently poisoned into silence.

Pain? For the first time, Qian Jin realized there were potions made by Oulala that didn't hurt.

In a mere few seconds, Qian Jin suddenly began to miss the intense pain of that series of volcanic potions. It turned out that something worse than pain existed in this world: numbness!

That’s right! In just a few seconds, his tongue went numb first, followed quickly by his legs, then his arms, and finally his entire body! Ever since becoming a Demon-Slaying Warrior, Qian Jin hadn't experienced full-body numbness. The last time his legs went numb was from squatting too long at the Ockland Magic and Warrior Academy.

Long-absent numbness! Qian Jin found it indescribably uncomfortable. Could this be a faulty mysterious potion? Where was any sign of bodily recovery?

After the brief numbness, Qian Jin noticed a new change in his body—this time, it was soreness! The kind of aching in the legs that came after running until all strength was gone, yet still being forced to run.

His body's cells were undergoing rapid changes every second! Oulala smiled faintly, nodding repeatedly as she muttered to herself while walking toward the room. "It seems this potion is a success. If he takes this long-term, his recovery ability will surpass that of ordinary people. Then, after a serious injury, a short sleep and he’ll be recovered on his own. Maybe even with just a blink—far more useful than any restorative forbidden spell or recovery draught..."

Long-term dosage? A nap? A blink? Qian Jin strained his paralyzed eyeballs, looking at Oulala’s retreating back. As expected of a mysterious alchemist! She really dared to dream!

"Ultimately, people must rely on themselves," Oulala fiddled with various pieces of experimental equipment. "Whether it’s a preservation potion or anything else, do you really have time to take it during actual combat?"

Qian Jin’s numb eyes froze slightly. Although his teacher, the mysterious alchemist Oulala, was often eccentric, what she said held profound truth: ultimately, people must rely on themselves... On the battlefield, the enemy wouldn't grant their opponent time to take medicine to recover.

"While you are numb, try hard to control your body's movements," Oulala continued without looking up. "The more you manage to move, the stronger your body's recovery ability will become."

Move? Qian Jin wanted to laugh, but he found that the muscles in his face were completely paralyzed, incapable of any expression. Even being able to slightly move his eyeballs was a considerable achievement. He couldn't control even a pinky finger; the numbness was agonizing, yet he couldn't manage to fight it.

What was the connection between numbness and recovery power? Qian Jin couldn't understand, but surely this mysterious alchemist Oulala must have some basis for her method?

Battle Qi... His Battle Qi, at this moment, seemed to have been completely paralyzed, even his Battle Heart was utterly numbed.

The Iron Smelting Breathing Technique! Qian Jin was dumbfounded. The Iron Smelting Breathing Technique, which had conjured miracles for him in times of danger, and the Earth Fire Heart—his second Battle Heart—were actually both paralyzed by the mysterious potion today!

"Use your flesh; stop relying on your Battle Qi," Oulala continued her strange experiment. "Your Battle Qi originates from training your body. Your body is the true foundation of everything. Without your body, where would your Battle Qi come from? After studying with us for so long, you still don't know where the source is? What an idiot."

Idiot? Qian Jin was beginning to almost like this feeling of numbness, if only because he couldn't even blush from being insulted now.

Idiot! Qian Jin felt utterly powerless, struggling to move his eyeballs. The Endless World was truly too different from the Zhence Dynasty. Every display of his ability there earned him praise from Uncle Mu Guixin, but here in the Endless World, the evaluation he received was merely 'idiot'...

"Focus your spirit and try to control your physical body," Oulala added some strange liquid to a test tube. "The mysterious potion cannot truly develop your body; it only creates an opportunity for development. Whether you develop it or not still depends on you."

Control the body... Qian Jin closed his eyes, no longer dwelling on the insult. He immersed his entire spirit into feeling every inch of muscle, every sinew, trying to understand their true condition. Only by understanding could there be a chance for control.

Beneath her impatient expression, Oulala finally revealed a faint, pleased nod—he wasn't so idiotic that medicine couldn't fix him.

The body is the origin? Qian Jin had never considered this question. In the long history of the Zhence Dynasty, warriors had always emphasized Battle Qi and Combat Techniques! Or, more directly, the naked pursuit of awakening bloodline power!

When bloodline power reached its peak, the pursuit would shift to cultivating top-tier Battle Qi and learning to use supreme Combat Techniques. As for the body...

Every warrior possessed a decent physique, further refined by Battle Qi, so why would anyone pursue further physical training? As long as the Battle Qi possessed sufficient explosive power or unique properties, it was deemed enough!

As long as the Battle Qi was powerful enough, the body would naturally be tempered better by it! That’s why bloodline warriors always possessed the strongest physiques.

Finger... "Move your finger just once..." Qian Jin found he could slightly twitch his ear, but his fingers remained unresponsive. He felt entirely sealed off, like a figure in a minstrel's ballad.

One minute, ten minutes, half an hour..."

Qian Jin, in that intensely agonizing state, had to maintain mental focus to command his body to move, finding it a hundred times more difficult than when he took the volcanic potions.

After an hour, Qian Jin’s body finally returned to its initial state; his limbs were once again fully under his control. Almost no progress was made during that time, except for the slight movement in his ears.

"Remember that feeling. If you have time, simulate that physical state. Entering that state willingly is also excellent training," Oulala shook her head, her expression thoughtful. "Though, an idiot like you probably can't manage it."

Qian Jin managed a grimace, finally achieving the wry smile he couldn't manage before. He bent over, bowed, and turned toward the door.

"By the way," Oulala raised an eyebrow and asked casually, "You said you were looking for Enrake? Do you look down on the great mysterious alchemist? Why wouldn't you come ask me instead of that waste, Enrake?"

Teacher Enrake is a waste? Qian Jin raised a hand to scratch the back of his head, looking at Oulala with a mouth full of bitterness. In this world, perhaps only Uncle Black wasn't considered trash in his teacher's eyes.

"I wanted to ask Teacher Enrake about the issue of the Battle Realm," Qian Jin sighed powerlessly, looking at Oulala. Though he didn't know how strong Teacher Enrake was, he was surely a Saint-level expert at the very least? Perhaps he had specialized research on the Battle Realm.

"The Battle Realm?" Oulala put down her test tube, crossing her arms over her chest, causing the ample cleavage hidden beneath her oversized lab robe to jut out. She smiled mysteriously and asked with great interest, "Isn't the Battle Realm created by the fusion of the Battle Fruit and Battle Qi? Speaking of which, the Battle Fruit is just one component for a mysterious potion. If you have questions, you should ask me. That waste Enrake is only good for fighting, other things..."

Oulala raised a hand to her delicate, pale lips, arching her neck back as she let out a series of rapid, arrogant, high-pitched cackles: "Ou... Hehehehe... Tell me, what's the problem with the Battle Realm?"