Proficiency is crucial to any secret technique. Practice makes perfect. Only by using it more can one be perfect. If you practice hard, you will not make much progress even if you practice hard for a million years. If you build a ship behind closed doors, you will not be much better even if you can build a ship, even if you can build a ship, the quality will not be much better.

Yu Han easily collected a large amount of materials, then entered the Emperor of the Underworld and began to refine the alchemy.

There is no batch refining of alchemy, but refining one by one.

To be honest, this is very boring, but cultivation itself is an endurance job, and you must endure loneliness.

Fortunately, it is refined in Hanoi Styx, so there is no need to worry about the excessive passage of time outside the world.

After ten thousand times of refining, Yu Han was already very skilled. If he had not had the spiritual mantra of purifying the mind, he would have vomited a long time ago.

However, the mantra of purifying the mind made Yu Han not feel irritable.

Refined hundreds of thousands of times.

After repeated training, the alchemy technique was successfully upgraded to the second level.

Now you can refine the second-level spiritual pill, but Yu Han is not very happy.

The reason is very simple, because this alchemy is too difficult.

Too harsh.

Not only in terms of spiritual power, but also in terms of mental power.

For example, when practicing swords, you can try it out mechanically.

However, this alchemy requires concentration and no sloppy.

If you refine it more than a dozen times in a row, you will become irritable.

Not to mention the refining of hundreds of thousands of times.

If there was no mantra of the mind-cleaning mantra, Yu Han would have gone crazy long ago.

It's like running and driving.

Running is physical fatigue.

But driving is exhausted.

Master Qingxizi started practicing alchemy a hundred years ago. Now it is a three-level alchemy. At first, he thought that the master was a playful nature, but now it seems that if the master had not focused on alchemy, the five major secret techniques of the Guigu School would have reached the fifth level long ago.

It takes a hundred years to upgrade the alchemy to the third level. If you want to upgrade to the fifth level, it will probably take a thousand years.

As a practitioner, who can spend thousands of years studying alchemy?

What about the sixth level alchemy?

Level 7 alchemy.

Thinking of this, Yu Han couldn't help but predict that alchemists, especially high-level alchemists, are definitely very popular within the five realms.

If you want to achieve great achievements in the alchemy, you have to make a desperate bet. Then you have to give up other secret techniques and focus on improving alchemy. In this way, alchemy is very good and can refine high-level elixirs, but your own strength is vulnerable.

To achieve great achievements in a certain field, you must make the same great sacrifice.

Alchemists sacrifice their own strength to achieve great achievements in the alchemy.

"Low-level spiritual pills are useless. High-level spiritual pills are absolutely popular. Alchemists are definitely very popular. As long as they can refine high-level spiritual pills, it is definitely everyone to flatter and please. If others want to achieve great achievements in the alchemy, they will have to make huge sacrifices. But I have the Emperor of the Underworld, so there is no need to worry about this at all." Yu Han laughed: "My own strength will not fall, and I can also raise the alchemy to an extremely high level. When I upgrade the alchemy to the fifth level, I will definitely walk sideways when I go to the divine realm."

What Yu Han didn't know was that alchemy was different from other secret techniques. Each level of improvement was very difficult.

But the first three levels of alchemy are the easiest.

As for the reason, it is actually very simple. Low-level spiritual pills are useless.

The third-level spiritual pill can only be taken by those at level three and below. The lowest in the divine world are level six masters, so who wants these third-level spiritual pills?

As for other realms, the same is true.

Only by entering level 5 can one truly embark on the road of cultivation. Before level 5, it is all garbage.

And spiritual pills, third-level and fourth-level, are of no use, only when they reach the fifth level are valuable.

The sixth-level elixir is even more valuable.

As for the seventh level, eighth level, or even nineth level, there is no need to say more.

If anyone can refine a tenth-level spiritual pill, which is the so-called magic pill, it will be even more sharp.

The master said that a divine pill can have a soul or even transform into a human being, and it has strong strength in itself. The value of a divine pill is worth a magical weapon.

Thinking of this, Yu Han felt happy.

Continue to refine.

Start refining a level 2 spirit beast.

Day after day, year after year, thirty years in Hanoi, outside the world only has an hour.

It took Yu Han ten years to refine it 100,000 times.

However, it took a hundred years to get promoted from the second level to the third level.

The difficulty increases tenfold from the second to the third level.

According to this ratio, it will take thousands of years to upgrade to the fourth level.

It took a thousand years to upgrade the alchemy to the fourth level. With such a huge sacrifice, looking at the five realms, how many people are willing to do so.

It will probably take tens of thousands of years to upgrade to the fifth level.

What sets the development and growth of the alchemist profession is not materials, but time.

Super long time.

But with huge efforts, there will inevitably be huge returns.

Yu Han firmly believes in this.

Jump out of the Styx River, Yu Han escaped from the Emperor of the Underworld and began to hunt down the third-level spirit beast.

Yu Han can now refine third-level spiritual pills.

Master Qing Xizi spent a hundred years to upgrade the alchemy to the third level.

Yu Han used the upgrade plug-in of the Emperor Ring, which was also upgraded to the third level.

Hunting for a night, wandering around, and only hunting more than 3,000 spirit beasts.

This number is really small.

This gave Yu Han a headache.

The materials are difficult to find, which seriously restricts the improvement of alchemy.

In addition, the continuous refining of alchemy made Yu Han exhausted physically and mentally.

Even if you have a mantra of purifying the mind, you cannot get rid of the irritability in your mind, and your brain feels like it is about to explode.

"Forget it, stop. The price of trying to upgrade alchemy to the fourth level in the human world is very terrifying. Even if I kill all the third-level spirit beasts in the desert, it is probably not enough for me to upgrade to the fourth level. Alas, I can only find a way in the future." Yu Han said.

The master said before that he had tons of spiritual pills, which scared Yu Han very much. Now he finally understood that if he wanted to become a third-level alchemist, he had to use tons of spiritual pills for trial.

This is a super money-burning profession.

It is absolutely impossible to do without great perseverance and determination.

"I have more than one million first-level and second-level spiritual pills now. My god, these are useless to me. It's a pity to throw them away, and they take up space when they are left." Yu Han said in pain.

"The master is very powerful, and these are really useless, but these low-level spiritual pills have a great effect on mortals." Bi Fang said.

Yu Han was stunned after hearing this.

When mortals transform into cultivators, they all understand themselves, and they are only one in ten thousand.
Chapter completed!