After obtaining the clear sky set, he searched for a strange place in the nest and obtained 30 pieces of purple cloud iron.

After another round of searching, he did not find anything else and left this underwater secret place with Nie Ling.

"A set of equipment and 30 pieces of purple cloud iron, not bad."

Hearing this, Nie Ling thought to herself, is he serious?

If that set of clear sky equipment was put up for auction, it would definitely be worth 4,000 low-grade spirit stones.

However, she did not mention it because she understood that Su Yi still needed this set of equipment.

Having this experience, the two of them began to explore the chaotic cloudy creek.

It had to be said that the number of demon beasts in this chaotic cloudy creek was unknown.

The two of them headed towards the great desolate central plains while exploring the land. They hunted demon beasts, searched for secret lands, and gathered materials.

...

One day, Nie Ling came to Su Yi and said, "fellow Daoist Su, my immortal destiny seal space is almost full."

Hearing this, he immediately looked at his own seal's space. Although there was the expansion of the ruins jade, the recently collected material occupied most of the space.

Among them, most of them were obtained from killing demon beasts in the chaotic cloudy creek these few days.

A large number of qi condensation realm demon beasts fur, and among them, there were quite a number of resources from foundation establishment realm demonic beasts.

There was a large number of purple clouds iron, along with some ores.

The demon cores occupied almost a row.

Looking at these materials, he touched his nose.

Unknowingly, he had already collected so many materials. They had almost swept the entire chaotic cloudy creek.

Now, if they wanted to find a late-stage qi condensation demon beast, they would have to go far away to find it.

Thus, he looked at Nie Ling and smiled.

"My seal is almost full. With these materials, your Nie family's trading firm should be able to quickly take root in the central plains."

He had long planned to sell all these materials to Nie Ling. Since he was going to sell them anyway, he might as well give them to a trusted partner.

Even so, the Nie family would not covet him anymore. On the contrary, it would sometimes bring him great convenience. Why not?

Hearing this, Nie Ling also faintly smiled.

"Hehe, this is all thanks to fellow Daoist Su. I'll pay you the money when I reach the central plains."

"That's not a rush. Money isn't something I'm short of right now."

The two talked to each other and quickened their pace. They no longer explored the chaotic cloudy creek and quickly headed to the central plains of the great desolate.

...

Another two days passed.

Su Yi, who was traveling quickly, suddenly stopped.

Just a moment ago, his heart was palpitating, as if something was coming.

"It's almost ten days, isn't it? It's time to prepare."

Nie Ling heard him mumbling to himself.

She immediately felt curious.

What did he mean by ten days, what was about to come?

Su Yi looked at the current area. Trees were growing everywhere, and the ground was rugged.

It was not appropriate to go through the tribulation here.

Then, he did not hesitate anymore. He felt the true essence inside him stir up, and he moved forward even faster.

"..."

Nie Ling, who was confused, did not know what was going on, so she also followed him.

At first, Su Yi's words made her very curious. What was it that he wanted to do in this great desolate region.

After half a day, he left the dense forest and came to a relatively wide area.

He found a place in this vast area. It was on a small hill.

There were no cliffs, no rushing streams, and no trees that blotted out the sun.

The strong sun shone directly onto their bodies. Nie Ling's fair skin was slightly red from the sun.

"Fellow Daoist Su, why are you doing this? Do you have something to do?"

Nie Ling, who was following behind, could not help but ask.

"Fellow Daoist Nie, you should retreat into the distance first. It might not be very safe here."

"Why?"

Her expression was somewhat solemn. She had a rough idea of Su Yi's strength, but if he said something that would not be very safe...

It would definitely be something big.

Seeing the worry in the girl's eyes, he comforted her.

"It's nothing to me, but it might affect you, so I hope you can stay away."

"I don't want you to be hurt because of me."

Hearing his words, Nie Ling could only nod.

"Be careful. If you need help, call me immediately."

"Don't worry, only I can do this."

Looking at Su Yi's confident and unworried face, Nie Ling's heart was filled with fog as she slowly walked away with a strange expression.

Although she had a strong curiosity in her heart, she could not ignore Su Yi's words.

His tone did not sound like he was joking. If she insisted on staying by his side, she might really be hurt.

After fifteen minutes, Nie Ling was half a mile away from Su Yi.

She also found a small hill, from where she could clearly see Su Yi's figure.

Looking at the resolute body that was sitting cross-legged, her gaze unconsciously became extremely gentle, and she even smiled slightly.

Boom--!

A clap of thunder sounded in the sky. In a flash, the scene of the scorching sun from before had disappeared.

In exchange, it was a layer of heavy and oppressive clouds.

Su Yi's lightning tribulation had arrived.

At this moment, the surrounding environment started to stir with the strong wind.

The dark clouds in the sky gathered together.

They formed a vortex-like thundercloud.

And in the middle of the thundercloud was Su Yi, who was sitting cross-legged below!

At this moment, Nie Ling came to a realization. When Su Yi said 'only I can do this', he wanted to undergo the lightning tribulation!

The hurricane brought by the surging tribulation clouds wreaked havoc on the plains. Lightning arcs flashed across the thunder clouds in the sky.

Even Nie Ling, who was half a mile away, could feel the heavy aura.

"This aura is too terrifying."

Nie Ling whispered and looked over.

Shee found that his tribulation clouds covered an unknown distance of several miles.

This was only the lightning tribulation of the foundation establishment stage. Usually, the tribulation clouds of an ordinary foundation establishment stage cultivator would stretch on to reach a few hundred meters.

However, Su Yi's tribulation clouds were not as simple as that. A nine-colored glow actually appeared in the spiraling tribulation clouds.

"That is..."

Looking at the multicolored glow in the tribulation clouds, an impression suddenly flashed in the depths of her memory.

That was recorded in an ancient book in her family.

It was rumored that when someone could reach the qi condensation realm, the success rate of the foundation establishment stage would be 1000% .

When he transcended the foundation establishment tribulation, the heavens would bestow blessings on him, and nine-colored multicolored light would cover the tribulation clouds.

Then, she looked at the top of Su Yi's head.

How similar was the situation in front of her?

Hiss--

Nie Ling took a deep breath, and her body could not help but tremble.

Su Yi had already shocked him enough, and now, he was actually able to make the legendary lightning tribulation appear in the world again.

Looking at Su Yi again, he also noticed the change in the lightning tribulation and could not help but smile bitterly.

The lightning tribulation that had been delayed for ten days actually caused this change.

"Tsk, I don't know if it's good or bad."

He raised his head to look at the sky. The circling lightning tribulation carried arcs of lightning and constantly flickered among the clouds.

If one looked carefully, one could still see a trace of colorful light in each of the arcs of lightning.

In the distance, Nie Ling knew that she could not help much, so she could only watch.

At this time, Su Yi's lightning tribulation had begun to slowly gather and brew. The first bolt of lightning was almost ready.

...