The maximum limit of a low-grade Strength Elixir is a 20% increase in power. At this moment, the Golden Slime developed a resistance to the elixir, unable to further increase its strength. It could only switch to other elixirs or a medium-grade Strength Elixir.

"It's time to prepare the medium-grade Strength Elixir," Chen Shu thought to himself.

If he hadn't unlocked Potion Science, boosting the Slime's strength by 20% would require purchasing forty bottles of low-grade Strength Elixir, costing a total of 200,000 Huaxia Coins. Ordinary families couldn't afford that, especially since this was just the Strength Elixir. Other elixirs like Speed Elixir and Defense Elixir would be another massive expense.

Even in the world of Beast Tamers, the wealth gap still existed and hadn't changed. The Contracted Spirits of the wealthy were far superior to those of the poor, an unchangeable fact. The stark disparity made the Dimensional Realm extremely popular, as only by relying on it could ordinary Beast Masters amass wealth to purchase elixirs and enhance their Contracted Spirits' power.

For three days, Chen Ping did nothing else, shuttling between his neighborhood and the company. On the second day, he successfully prepared three batches, yielding twenty-four bottles of Strength Elixir. On the third day, Chen Shu prepared two more batches of low-grade elixirs and unlocked the medium-grade Strength Elixir's catalog. He wanted to prepare a batch of medium-grade elixir, but it required two Strength Flowers. With no other choice, Chen Shu prepared another batch of low-grade Strength Elixir.

The three-day holiday for the College Entrance Exam was about to end, and Chen Shu's System Space now held forty-eight bottles of Strength Elixir, giving his Contracted Spirit a certain boost in power.

"What a fulfilling holiday."

In the afternoon, Chen Shu left the company. He only needed to complete three preparations a day, something other Potion Masters might not achieve in a whole day, yet he did it in less than an hour, leaving the rest of the time for himself.

"Let's check out the Black Market."

Chen Shu casually hailed a taxi and got in, noticing a man sitting in the front seat.

"Driver, is it convenient to go to the Black Market?" Chen Shu asked.

"Convenient? There's a public restroom up ahead, no need to go all the way to the Black Market," the driver replied, puzzled.

Search tinyurl.com/2p9emv8w for the original.

Chen Shu: "??"

Is this the legendary sensitivity effect?

Sensitivity, may this prosperous era be as you wish!

"I mean, is it on the way to the Black Market?"

"Oh, on the way, this passenger will get off just ahead," the driver realized.

In just an hour, Chen Shu arrived near Seven Star Street. Even during the day, the Black Market was bustling, comparable to the city center. He stood at the entrance, seemingly waiting for something. Without Xu Xiaoyu's guidance, he couldn't enter the Black Market alone.

Just then, a man strode confidently towards the entrance.

"Hey, Old Zhang, long time no see!"

Chen Shu grinned, slinging an arm around the man's shoulder, acting like they were old friends.

"Who are you?" Zhang Ming looked bewildered. Who is this guy? I have no memory of him.

"It's me, Old Chen, remember? We were drinking together last time."

Chen Shu, full of enthusiasm, naturally walked into the Black Market with Zhang Ming.

"Oh, Old Chen, no wonder you looked familiar. How have you been lately?" Zhang Ming, though still puzzled, responded warmly.

"..." Chen Shu's mouth twitched, you're quite the actor.

"Same as always, let's chat another time, I must take my leave!"

Chen Shu turned and left, leaving Zhang Ming bewildered in the wind. He passed by the roadside stalls and headed into the shops on the street.

"Only three thousand for a Strength Elixir??"

Truly a black market, selling at five thousand but buying at only three thousand.

"I have the company logo on mine, 666 Elixir Company, it's genuine."

Chen Shu had to explain, having used the company's packaging for easier sales.

"I know, if it were black market goods, it would be fifteen hundred," the clerk said calmly.

"You're really ruthless," Chen Shu said, "Do you have any Strength Flowers?"

"Yes, twenty thousand each, we have four in stock."

"Then give me the materials for four batches of Strength Elixir," Chen Shu requested.

"That's a hundred thousand, do you have that much?" the clerk asked skeptically.

Strength Flowers were worth twenty thousand each, and the other ingredients were about five thousand.

Chen Shu took out the forty-eight bottles of Strength Elixir from his backpack and neatly arranged them in front.

"Damn, did you rob the 666 Elixir Company?"

"I'm a law-abiding citizen, not a criminal! Exchange four batches of materials for me, and convert the rest to Huaxia Coins."

"Got it, got it, the Black Market doesn't check origins," the clerk collected all the Strength Elixirs.

"It's surprisingly cheap." Chen Shu thought it was five thousand per bottle, but that was the shop's selling price. Selling personally would naturally be discounted. Unfortunately, he didn't have a Potion Master's certificate; otherwise, selling in a legitimate shop in the city center would fetch a higher price.

"Young man, here are four batches of materials and forty-four thousand yuan, please check," the clerk quickly returned.

Chen Shu briefly inspected the Strength Flowers to ensure they weren't dyed.

The clerk immediately placed the purchased Strength Elixirs on the shelf, marked at five thousand.

"Could you show me some respect…"

Chen Shu's mouth twitched, bought for three thousand and immediately shelved for five thousand.

He shook his head and left the black shop. It seemed he needed to get a Black Market stall certificate next time; selling personally could fetch at least four thousand per bottle.

This damn shop was too ruthless.

"Four batches of materials can produce two batches of medium-grade Strength Elixir, yielding about twenty-six bottles, nearly doubling in value instantly."

Though the black shop profited greatly, Chen Shu never lost.

"Let's go prepare the elixir."

Chen Shu sought a quiet place but found the Black Market too crowded and noisy.

"Hmm? A public restroom?"

Without hesitation, Chen Shu entered.

He waited for a while and finally got a stall.

He neatly arranged the various materials for the Strength Elixir on the ground.

In the system's Potion Science, a new catalog had branched from the low-grade Strength Elixir, the medium-grade Strength Elixir.

"Prepare medium-grade Strength Elixir, yes/no?"

Chen Shu chose to prepare it, and the next second, his body was taken over by the system, transforming him into the world's top Potion Master.

He sequentially added the materials into a large container with no mistakes, like a highly precise machine.

Preparing the medium-grade Strength Elixir was evidently much more challenging.

It took a full twenty minutes before he succeeded, yielding exactly thirteen bottles.

"Medium-grade Strength Elixir preparation successful. Unlock high-grade Strength Elixir after ten preparations! 1/10"

The system's prompt sounded again, and Chen Shu began the second preparation.

The restroom stall remained closed.

A young man clutching his stomach entered, only to find the worst-case scenario.

The restroom stalls were all occupied.

He squeezed his legs together, clenching his sphincter, his body trembling slightly, a song echoing in his mind.

"With my last bit of stubbornness, I'll never let go…"

The public restroom had only three stalls, and the other two were occupied. The young man could only wait for the innermost stall.

As time ticked by, his body trembled, and sweat beaded on his forehead.

"Buddy, emergency! Emergency!" Unable to hold it any longer, he knocked on the stall door.

The other two stalls had just been occupied, and it would take a while for them to be vacated.

But there was no response from the stall.

"Perhaps no one's there?" he thought, but the stall door was closed.

After some hesitation, he mustered the courage to climb over.

The stall door wasn't too high, and with a light climb, he saw the scene inside.

In the next moment, his eyes widened, witnessing the most shocking sight.

"Damn!! Someone's making elixirs in the restroom!!"