I, a prison guard in the Heavenly Prison, secretly became invincible thanks to the system.

"You brat, you're not exactly a coward, but unfortunately, you're too arrogant."

Peng Jie gave Ye Kang a second glance, but had no doubt that he would lose.

After all, they had been studying formations for a whole year, and their talent was second only to Lu Tongtong.

A formation that even I couldn't complete, a freshman shouldn't even dream of.

However, to everyone's surprise, Ye Kang not only agreed, but also said, "Senior Brother Peng, since you are determined to make things difficult for me, then I will accept it. However, this bet is too small and it's not very interesting. Do you dare to raise the stakes a bit more?"

Ye Kang's eyes were sharp, and his tone was already somewhat unfriendly.

He wasn't exactly a pushover; even a clay figure has some temper. How could he let this group of senior brothers and sisters off so easily after mocking him like this?

No matter what, we have to get something back.

Sure enough, everyone was stunned when he said that.

"Is this guy crazy? He actually asked to raise the stakes?"

"Exactly, doesn't he really think he can win?"

"Senior Brother Peng, don't be a coward, agree to his request!"

A group of people immediately started to jeer.

Peng Jie had a vague feeling that something was wrong, but he was already in a difficult position. If he didn't gamble, wouldn't it be as if he was afraid of his junior brother?

Regardless of whether you win or lose, you've already lost face.

Absolutely not!

He had no choice but to scoff and say, "Fine, whatever you want to bet on."

"A rare and precious treasure."

After speaking, Ye Kang stretched out his hand, revealing a section of black, rotten wood.

Yellow-grade natural treasures, mysterious agarwood.

The fire saltpeter from the abyss was stolen goods, so Ye Kang couldn't take it out. However, the agarwood from the Xuan Shui River was acceptable.

At that moment, the air seemed to freeze for a split second, followed by a collective gasp of shock.

Nobody expected this kid to go this far!

Does he think rare and precious materials are some common, cheap stuff? How can you gamble like that!

Even Old Zhou looked at Ye Kang with surprise, suddenly becoming more interested.

Everyone looked at Peng Jie, whose face was ashen and kept changing color.

This kid!

Could it be that he/she is really suffering from a serious illness?

Isn't this blatantly trying to scam me?!

If I didn't have rare and precious materials, it wouldn't be a big deal, but the key is... I really do have them!

Moreover, everyone knows that there's no way to refuse.

That was a reward from the academy for coming in second place in the previous formation-based final exam.

His expression was extremely ugly, but he still suppressed his anger and took out a jade box.

The jade box was opened, revealing a pearl the size of a human head.

"A rare and precious material, a thousand-year-old pearl."

Ye Kang instantly smiled and said, "Senior brother, if you can't bear to part with it, you don't have to force yourself."

"Enough with the nonsense! Let's ask Elder Zhou to be our witness, so that no one can deny it!"

He handed over the thousand-year-old pearl directly to Elder Zhou, and Ye Kang also handed over the Xuan Shui agarwood.

After that, he didn't say anything more and went directly to the sand table. He used his divine sense to observe the failed wind spirit array.

The basic structure of the formation was correct, but it failed to take shape in the end. Everyone thought that something went wrong in the last step, but Ye Kang, with his Boundless Azure Eyes, immediately figured it out.

The problem lies in the step before that.

There are indeed methods to remedy formations in the Xuanmen Formation Explanation, called the Returning Heaven Hand, which is a formation arrangement technique similar to picking leaves and plucking flowers.

Although the formations may differ, the techniques are universal. Whether it is an ancient formation or a modern formation, they all share the same fundamental principles.

He took a deep breath and tried using the Reversal Hand technique for the first time. His true energy seeped into the Wind Spirit Array, stabilizing his foundation while meticulously analyzing the situation, directly identifying the key errors and quickly repairing them.

This step sounds simple, but it's not easy to do.

If the technique is not up to par, the entire formation will collapse, and all previous efforts will be in vain.

The "Return to Heaven Hand" technique forces Ye Kang into a state of focus, with his hands acting before his mind. Often, before he even realizes it, his hands have already made the decision.

In this way, the error rate can be minimized.

Such a method naturally and quickly attracted everyone's attention.

Old Zhou, who hadn't paid much attention before, was suddenly stunned.

Lu Tongtong immediately leaned closer, not daring to blink.

The others were even more astonished. They all looked at Peng Jie, only to see that his face was deathly pale and cold sweat was pouring down his face.

"No...this is impossible..."

He shook his head, trembling, his heart breaking.

Could this kid really be good at it?

Nevertheless, he still held onto a last hope, even if it was just a flashy facade?

The next second, that glimmer of hope was shattered.

Ye Kang stopped what he was doing, and the Wind Spirit Array rose up at the same time.

The formation is complete!

"Oh my God!"

Everyone stared wide-eyed, their eyes filled with disbelief.

Lu Tongtong grabbed Ye Kang's hand and exclaimed, "You're amazing! How did you do that? I've never seen your technique before. Who created this?"

Seeing the other party's eager gaze, Ye Kang didn't care and said, "It's just a little trick, not worth mentioning."

"You're lying! You're clearly very capable!"

Lu Tongtong's eyes sparkled, and she seemed lost in thought.

Old Zhou immediately came over, examined it carefully, and confirmed that the formation was correct. Only then did he raise his head and say with a strange expression, "Ye Kang won. It was indeed beyond my expectations. No wonder the dean asked you to come here to listen in."

"Old Zhou is right, he was lucky to have guessed exactly where the mistake was."

"This is not luck; it requires a keen sense of formations and skillful array-setting techniques."

Old Zhou looked at the stunned Peng Jie and said, "A bet is a bet. Your thousand-year-old pearl is now his."

"I……"

Peng Jie's eyes were lifeless, and his face was filled with bitterness.

He was filled with regret at that moment. Why did he have to provoke this junior brother?

Ye Kang naturally accepted the pearl without hesitation, and the system notification sounded at the same time.

【Ding】

[Congratulations, host, on obtaining the Yellow-Rank Heavenly Treasure: Thousand-Year-Old Pearl]

【Millennial Pearl: A treasure formed only after a special clam clan transforms into a demon and is nurtured for a thousand years. It has miraculous effects on alchemy and can increase the success rate of pill refining】

It turns out to be a rare and precious natural material used specifically for alchemy; that's quite a rare find.

Unfortunately, Ye Kang didn't know how to refine pills, but he didn't care. As long as they were rare and precious materials, their uses didn't matter.

He also confirmed that the condition for building the Spirit Merchant Platform was twenty rare and precious materials, with no requirements on the type.

In other words, if Ye Kang could obtain twenty thousand-year-old pearls at once, he could directly build the Spirit Commerce Platform.

Of course, this can only be wishful thinking.

He carefully put the treasure away, then looked at Master Zhou and said, "Master Zhou's words today have greatly benefited me. Please accept my bow."

Ye Kang bowed respectfully with his hands clasped in a gesture of genuine respect.

Old Zhou nodded and smiled, "Your array-setting skills are quite remarkable. You must have been guided by a master. There is still a long time ahead, and we can exchange ideas and learn from each other."

Everyone was dumbfounded.

Is this still Old Zhou?!

When has he ever been so kind?!