For Liu An, Zhang Tian has always been a little incomprehensible.

He was burdened with a lot, and he was a genius in a small world before he came to the academy.

It's just that what he has always shown is too far from the quality that a strong person should have.

Maybe it's because he can't help but feel inferior compared to the vast sea of geniuses in the academy, or because of something else.

But this is a very hard-working teenager, and even sometimes Zhang Tian feels dwarfed.

Can you imagine that a person has nothing left but cultivation every day except for classes, eating, and sleeping?

Can you imagine a person who never rests for more than four hours a day?

Lie Ruge's choice to admit him to the academy at that time was not wrong. Today's Liu An has officially entered the late stage of the Chu Yuan Realm, and the level of effort is jaw-dropping.

When Zhang Tian saw him, he suddenly thought of an elixir.

It just so happened that he also had the materials for this elixir at this time. He was looking forward to how far Liu An would grow when he took this pill.

The ingredients were taken out one by one and placed on the table. Lin Hua, who had been paying attention to the situation on the field, saw that Zhang Tian finally made a move after the other two started for a long time, and turned his gaze curiously.

He naturally recognized the materials that Zhang Tian took out, although two of them were a little precious, which surprised him a little, but he was used to seeing precious medicinal materials, and he naturally quickly retracted his thoughts.

A rare mortal spirit stone...... Cloud antlers above the sixth grade...... There are also quite a few ice chips......

What kind of elixir is this? He searched in his mind for a long time, and finally found that with his profound knowledge, he couldn't figure out what elixir Zhang Tian was about to refine.

How is this possible? Could this kid still have an elixir that he doesn't know?

Then, under his gaze, Zhang Tian took out a vial again. The cork is so tightly corked that it is impossible to distinguish what's inside. The only thing he knew for sure was that it was an unknown liquid.

Zhang Tian noticed his gaze, of course, but obviously didn't bother to pay attention to it.

Lin Hua's attitude before, saying that he was not angry was naturally false. The refining of this elixir was taught to him by Yi Lao, and it was normal for Lin Hua not to recognize it.

In Yi Lao's opinion, the ordinary Danfang has actually been lost in this world long ago. Yi Lao doesn't know, and Zhang Tian doesn't know. If he knew, he would probably really change the elixir.

The other materials of this elixir are quite easy to find, but the medicine in it is really impossible to find it except for Zhang Tian at the moment.

What was in the vial was actually his essence and blood at the beginning of the rising sun every day, mixed with the morning dew after the rain, and refined with a special method.

Soon, Zhang Tian took out the last material.

It was still a small bottle, and the transparent bottle body could see the black liquid inside shaking constantly as Zhang Tian's hand shook lightly. When the cap is opened, a pungent sour smell comes out of the bottle.

It's acid, but Zhang Tian prefers to call it vinegar.

The brewing method is the same, the only difference is the name.

Put the Fan Ling Stone into the medicine mill next to the medicine pod, and soon a few pieces of Fan Ling Stone that were not big had turned into a pile of powder.

He then poured the powder into a wide-mouthed porcelain bottle, followed by a few drops of vinegar. Lift the porcelain vase with your left hand, and heat it slowly with your right hand with your luck.

Seeing that the inside of the porcelain bottle was about to dry out, he poured the vinegar in again and repeated the previous action.

Including the first time, he repeated this action seven times in a row. When the last time was done, beads of sweat appeared on his forehead.

It seems simple, but it is not so easy to control the heat.

Pouring out the materials in the porcelain bottle, I saw that the original gray-white Fan Ling Stone powder had turned into the same color as vinegar.

Nodding in satisfaction, he prepared the second material.

......

Huangpu Longlin and Sun Siqi both noticed the situation on Zhang Tian's side. Whoever asked him to use the vinegar, that sour taste is difficult not to be noticed.

The two of them, like Lin Hua, were a little unclear, and they were at a loss for what Zhang Tian wanted to refine.

In their medicine pod, most of the materials have melted, and they are constantly converging and merging with each other.

Sun Siqi retracted his mind, and his refining was the most important thing right now. What she wanted to refine was a five-grade pill called the Bone Pill, which had a huge effect on all kinds of injuries, even the most serious.

Seeing that she was skillful, it was obviously not the first time she had refined.

Similarly, the same is true of Huangpu Longlin's Dingzhong.

What he wanted to refine was also a five-grade pill. Compared with Sun Siqi's Bone Pill, the Nine Heavens Mystery Pill he was about to refine was more effective for injuries, even those who were about to die could rely on it to continue their lives, and those who were seriously injured could come back to life.

......

Zhang Tian recognized what the two wanted to refine, but he was not in a hurry. In any case, the success of the refining has the possibility of the next step.

The more he observed, the more frightened Lin Hua became.

Zhang Tian's methods were indescribably weird, and he disagreed with any common techniques he had seen. The most important thing is that Zhang Tian's technique is unfamiliar, and it is obvious that even if it is not the first time to refine this elixir, it is impossible to have many attempts.

He's too bold, isn't he?

Any alchemist should know that if a new elixir wants to be truly refined, it is impossible to achieve an ideal effect without thousands of repeated attempts.

This is also why there are many talented people, and only a handful can eventually become alchemists.

The boredom and hardships are really hard for outsiders to imagine.

At this time, Zhang Tian had already processed all the materials. He warmed up the pod again, and when a faint trace of white smoke began to rise from the pod, he first poured the powder of the Fan Spirit Stone that had been processed first into the pod.

Ten minutes later, he threw himself into the calcined cloud antlers again.

Half an hour later, he threw the polished ice chips into the dingzhong.

It wasn't until more than ten minutes later that he set his eyes on the medicine pod for the first time.

I saw that several materials have been well blended together. The continuous and stable temperature does not cause the material to move and change too violently.

Now is the time!

The temperature, which had never changed, suddenly increased at this moment, and then he opened the small porcelain bottle that Lin Hua had never understood, and poured the liquid inside into it at one time!

The liquid is not much, it is dark red, and once it enters the medicine pod, it begins to converge and merge with the original material.

Lin Hua, who was watching this scene, couldn't help but shake his head, obviously not optimistic about Zhang Tian's sudden increase in temperature. Because any alchemist knows this common sense, the temperature must not be changed extremely!

It's a pity that this person is Zhang Tian, and the existence of any common sense seems to be specifically for being broken!