For countless years, the Qian family has produced an abundance of formidable experts, and countless records detailing their strengths have been left behind. Even figures like Qian Zhanxuan, possessing such magnificent spirit and bloodline prowess, were not unprecedented.

The thick volume lay open, its pages gently turned by Qian Jin’s touch. Mystical Potions were never something one could simply concoct just by knowing the formula. To outsiders, the art of Mystical Potions looked like the ramblings of madmen, grabbing ingredients they barely understood and mixing them haphazardly, resulting in mere accidental creations.

Within the world of Mystical Potionry, however, it was well known that while extreme luck played a massive role in every successful brew, the reason why it succeeded had to be analyzed each time. Everything adhered to a certain principle, yet for many, that principle remained utterly incomprehensible.

Qian Jin managed a bitter smile, lightly tracing the bridge of his nose with his index finger. Truthfully, there were times he himself couldn't grasp the underlying principles. And that was precisely why he remained merely an apprentice Potioner today.

But if one didn't understand the principles of a Mystical Potion, the success rate of brewing it would plummet. Why? Oulala offered no elaboration, only stating: "If you do not understand the principles, the potion will not acknowledge you."

Acknowledged by a potion? In the eyes of most, this was yet another reason why Potioners were considered insane; they were dealing with nothing more than ordinary, lifeless medicinal herbs.

All Qian Jin knew was that every time he grasped the core rationale behind a potion formula, his mind would become exceptionally clear, as if affirmed by some unseen entity—a sensation utterly difficult to articulate.

Slowly savoring the dry text of the formula and the accompanying notes, Qian Jin nodded continuously. Regarding the principles behind the first potion formula, Oulala had written with extraordinary detail and comprehensiveness, offering ample explanation for every reaction and outcome.

After finishing the accessible explanation, Qian Jin closed the notebook, leaned back, and closed his eyes, pondering earnestly towards the heavens. Streams of strange data ceaselessly organized themselves in his mind, gradually coalescing into a coherent outline.

Understood! Qian Jin’s eyes snapped open, a triumphant laugh escaping him. Although the materials for these mystical potions weren't easily procured, asking Mu Gui Wuxin for help, along with a cool million gold coins, shouldn't make obtaining them too difficult.

The brewing method wasn't overly complex either; even as a mere apprentice Potioner, he stood a decent twenty percent chance of success.

Excellent! It shouldn't take a full month, then! Qian Jin picked up the notebook that had fallen to the floor and quickly flipped to the next entry—the formula for the potion that, when splashed upon someone, could open their Dou Realm. He stared at it, utterly bewildered. Although Oulala’s explanation was clearer than before, he still couldn't quite make sense of it.

“Forget it…” Qian Jin decisively snapped the notebook shut. The second method was fraught with difficulties, and even if he managed to brew it now, it seemed largely useless. It only took effect upon direct contact with human skin.

What powerful warrior couldn't project their Dou Qi externally? The liquid would be thoroughly blocked by the protective Dou Qi before it could even touch the skin. Unless a way could be found for this potion to erode protective Dou Qi, its usefulness was minimal. Breaking through protective Dou Qi? Qian Jin shook his head wryly. Every technique for projecting protective Dou Qi had a different sequence; devising a counter-method was so complicated it could make one dizzy, and without knowing the exact sequence, it was impossible to even begin.

There were countless Dou Qi techniques across the world! Each one was closely guarded, and obtaining the secret to breaking them was infinitely harder than cutting off the head of the current Great Demon King.

“What are you daydreaming about over there?” Oulala swept his voluminous, connected robes. “Reading books won’t make you a Divine Craftsman! Someone incapable of practical application is nothing but scrap wood.”

Qian Jin carefully placed the notebook back onto the bookshelf in the backyard and hurried into a small, dark room in the courtyard, commencing his first experimental brew of the Dou Realm-breaking Mystical Potion before the pre-arranged containers.

“Add a pinch of Misfortune Grass…”

BOOM! A violent roar erupted. Qian Jin shoved the wooden door open and rushed out with the billowing, thick smoke, his coughing matching the rapid rhythm of battle drums.

Qian Jin let out a breath, shaking his head repeatedly, at a loss for words. If his Wind and Cloud Golden Body hadn't instantly peaked, and his Dou Heart awareness hadn't marshaled the surrounding energy, that explosion would have certainly hurled him out of the Boundless World. Even so, he was heavily wounded in several places.

“Thank goodness this is in the Boundless World,” Qian Jin sighed again, looking at the laboratory where the smoke was finally dissipating. “If this were in the True Strategy Dynasty, I’d probably be confined to bed rest for a few days. Mystical Potioners…”

Qian Jin stepped into the ravaged laboratory, shaking his head at the experimental equipment, all reduced to scrap metal by the blast. “Truly a high-risk profession; you never know when you might lose your life…”

He cleaned up the lab, retrieved another set of equipment from the storeroom, prepared the materials, and began the experiment again.

BOOM… BOOM… BOOM…

Qian Jin emerged repeatedly from the smoke-filled laboratory, only to prepare everything again and continue his testing. “Fortunately, the Boundless World allows me to squander resources this lavishly to improve my proficiency. If this were the True Strategy Dynasty, it would be enough to bankrupt a city’s guild instantly. The Mystical Potioner profession is not only dangerous, but the gold coins it consumes are also astonishingly high.”

If it weren't for the Boundless World, Qian Jin truly doubted he would dare study Mystical Potionry even if he found a master—it demanded a dual toll on both body and coin.

After nearly sixteen hours of continuous Potion brewing, the time interval between explosions gradually lengthened. While he hadn't successfully created a single batch of the Mystical Potion, he had certainly made significant progress compared to the beginning.

When the time was up, Qian Jin exited the Boundless World, stored his hat back in his Dou Realm, and walked directly out of his room toward Mu Gui Wuxin’s quarters.

“Kid, you’re early,” Mu Gui Wuxin chuckled as Qian Jin entered the room. “Figured out a solution yet? If not, we can wait for Fabredis to return. That fellow has connections with people in the Black Dragon Guard of the True Lai Dynasty. Those types don’t just kill; they interrogate…”

Qian Jin felt a flicker of surprise. Uncle Fabredis knew members of the Black Dragon Guard? The Black Dragon Guard was an elite special unit exclusively for the Imperial Family; they weren't only formidable fighters but were also responsible for intelligence gathering and subversion work.

Among their duties, the Black Dragon Guard was most famous for the Black Dragon Prison. Rumor had it that no matter how steadfast a warrior, martial artist, or barbarian champion, none could withstand its questioning! Few who entered ever came out alive, and those who did were stripped bare of their resolve.

“No need, really,” Qian Jin smiled faintly, looking at Loki 7 Lei, who was bound in the room with his arms and legs dislocated. “I have my own way, and it will be quick. Very quick…”

Loki 7 Lei felt a chilling cold rise from the back of his neck as he sensed Qian Jin's smile. That calmness was too unsettling, giving the impression that everything was already within his grasp.

Could it be? He can open my Dou Realm? Loki 7 Lei furrowed his brow deeply, trying to puzzle it out. The Dou Realm was something only he himself could willfully open; otherwise, even a powerhouse whose bloodline reached its ultimate awakening couldn't breach it.

“Uncle, one more favor…” Qian Jin placed his palm on Mu Gui Wuxin’s back, gently steering the president of the Rushing Torrent Citadel out of the room, speaking in a low voice. “I’ll give you a list of materials shortly, along with a million gold coins. Use our Citadel’s channels to secretly procure this batch of materials in installments from different locations…”

“A million gold coins?” Mu Gui Wuxin looked at Qian Jin, bewildered. What was this for? Forging top-tier weaponry? If it were for forging, a million gold coins wouldn't even buy enough materials. The material for each of Fabredis’s soul weapons alone cost far more than a million gold coins.

“Yes, buying some small things…”

“What small things are so expensive they require a million gold coins?”

“That is…” Qian Jin scratched his head, feeling a bit troubled about how to explain it. “I plan to make some Mystical Potions…”

“My—Mystical Potions!” Mu Gui Wuxin nearly choked on his own saliva. At a time like this, why was he messing around with Mystical Potions? Did the kid have too much time on his hands?

Of course, Mu Gui Wuxin only voiced this internally. Given the things Qian Jin had done recently, any announcement could shock a person’s eyeballs right out of their sockets.

“Fine, fine. Mystical Potions… what kind of Mystical Potion?” Mu Gui Wuxin asked with a listless expression.

“A potion to open the Dou Realm…”

“What—a potion to open the Dou Realm…” As those words registered, Mu Gui Wuxin first repeated them in confusion, then roared like a cat whose tail had been stepped on, leaping up with a hoarse voice: “Wait! You said a potion to open someone else’s Dou Realm!”

To brew… a potion to open another person’s Dou Realm!

Mu Gui Wuxin stared blankly at Qian Jin. Did this boy even know what he was saying? The Dou Realm! Opening someone else’s Dou Realm! Even Ultimate Bloodline Warriors couldn’t do it; how could he?

Qian Jin gently shook his head and sighed, realizing that revealing this would still shock the President of the Rushing Torrent Citadel. However, he thought that after spending so much time around him, the man should have developed some immunity to shock. Apparently not!

Qian Jin shrugged. He admitted that when his teacher Oulala first mentioned it, he himself had been quite stunned—though, admittedly, his eyes hadn't popped out like Mu Gui Wuxin’s.

“Can you say anything more alarming? Can you make your statement any more terrifying?”