After the required materials were delivered, Jiang Yifan, who had never made 'retardation agent' and 'refreshment agent', made the first production from scratch under the guidance of Zhuang Lao:

"First weigh two taels of 'stupid seeds' and grind them into powder."

"Hmm... The fineness of your grinding needs to be improved, it's not uniform, but now let's make do with it... Then take a plant of 'Silly Grass' that has been effective for two and a half years, and extract 3ml of juice with a concentration of 98%. ”

"You can't find a single 'dumb grass' that has been effective for two and a half years? Coincidentally, I couldn't find it either, because the effects of these 'silly grasses' were only two and three years old. ”

"Don't look at me with this kind of look, there are no ready-made medicinal materials, those of us who are cultivators can figure out how to adjust them ourselves."

"Come, first take some juice from each of the two and three years of stupid grass, and then the pen and paper are here, and you can calculate what ratio you need to use to make two and a half years of medicinal effect."

"The proportions feel weird? That must be strange, how can you adjust the effect of the medicine without adding a 'blending solution'? ”

"Hmm... The effect of the medicine has just been adjusted for two and a half years, but the color is dirty, and it looks a little disgusting. Next time, remember to hurry up, only when you adjust it to the level of crystal clear, and it is easy to sell it outside. ”

"Yes, yes, yes, it's just so hard, you have to use the most primitive method to have a soul to prepare the 'retardation agent', and those who use machines are heretics!"

"But you still threw it so hard after adjusting it, it looks even more disgusting than before..."

“...”

'I remember the first time I was a teacher's assistant, I was so busy...'

Shen Zhao, who was sterilizing needles on the side, looked at this scene and couldn't help but sigh secretly in his heart.

Who would have thought that an old man who is usually so amiable would be like a driving school instructor possessing him when teaching students, and his mouth would keep outputting without dirty words?

Well...

In other words, when this grandfather failed the 'junior cultivator exam' ten times in a row, it seemed that he really worked part-time as a driving school instructor...

...

Half an hour later.

"Whew..."

Jiang Yifan, who had finally prepared the 'retardation agent' and the 'refreshment agent', exhaled a long breath of turbidity, raised the back of his hand and wiped the fine beads of sweat on his forehead.

Although only half an hour had passed, due to Zhuang Lao's witty guidance, his brain unconsciously entered a fast-paced state of 'high mental concentration'.

I didn't feel it when I was mixing the potion before, but I felt that after the initial rush of the brain, my brain became extraordinarily clear and active.

After the potion was mixed just now, the whole person's spirit relaxed and withdrew from that state, but the exhaustion swept over like a tidal wave.

This exhaustion does not act on the body, but on the brain.

If you want to use an analogy, it's like taking eight boring math lessons in a row, with no breaks in between.

But...

Exhaustion is exhaustion, and there is still a lot of gain.

Although in terms of the technical techniques of concocting potions, even with the personal guidance of the cultivation master, the improvement that can be obtained is not very obvious.

After all, practice makes perfect, and only years of practice can achieve significant results.

So the most important thing is to improve the thinking.

After Zhuang Lao's various explanations in simple terms, Jiang Yifan could feel that his thoughts on the preparation of potions had broadened a lot.

In the past, the knowledge points that were obscure in textbooks and could only be memorized by rote were finally understood and understood after a deeper level.

As long as he ponders and digests it carefully after he goes back, he will be able to think about problems in a higher dimension when making potions in the future.

As for December, will you be able to pass the Junior Cultivator Exam successfully?

Of course...

I still need to practice again.

In terms of thinking, it is indeed in line with the level of a junior cultivator, but the technical skills of dispensing potions still need to be improved.

"I need to mix two bottles of medicine next, but it's the acupuncture part soon, so leave it to me."

Looking at Jiang Yifan's slightly immature young face, which had already revealed a trace of tiredness, Zhuang Lao reached out and took the two bottles of potions on the table and said.

"Okay."

Jiang Yifan nodded obediently, took two steps back to the side, and handed him the test bench.

The remaining steps were not complicated, and Zhuang Lao completed it in three or two minutes.

Although it is only a few simple techniques, the speed of completion is not fast, but it makes people feel comfortable.

The style of the master can be seen.

"The reason why 'retardants' and 'refreshments' are used in the process of acupuncture is to reduce the feeling of pain from two aspects."

Zhuang Lao gently stirred one end of the silver needle in the mixture of the two medicines, and explained, "Retardants can affect the release of neurotransmitters and delay the transmission of pain information. The effect is equivalent to reducing a catastrophic tsunami into several large waves;

Although there is no reduction in the amount of pain received, by lengthening the timeline and reducing the amount of pain per time, the Wisp will be more able to bear it.

The effect of the refreshment is to reduce the sensitivity to pain by increasing the excitability of the nerves.

The effect was equivalent to building a temporary dam, temporarily increasing the wive's ability to withstand pain.

The combination of the two, combined with the stimulation of the body's potential by acupuncture itself, can shield the demon's pain to the greatest extent without damaging the demon's body and without affecting the movement. ”

After listening carefully to Zhuang Lao's explanation of the principle behind it, Jiang Yifan nodded understandingly.

After that, the needle piercing of the bronze snake began.

"Given that you are a demon envoy, shielding the pain of demon spirits should also be for training, so the acupuncture acupuncture point map I designed for you is divided into two sets in total."

Zhuang Lao also explained while piercing, "One set is static, and you need to keep a needle on your body. The other set is dynamic, and the pain can still be weakened after the needle is removed, but the effect will be weaker than the former.

Some acupuncture points are suitable for 'retardant', some are suitable for 'refreshing', and some acupuncture points are a mixture of two medicines, don't make a mistake about this.

I'll draw you a detailed map of the acupuncture points later, but you can just memorize it now..."

"Shhhh

And the bronze snake, which gradually turned into a little hedgehog, had a pair of jewel-like eyes, but at this time it was full of dissatisfaction.

(*'dish ́*)ノ You are high, you are amazing, give Lao Tzu a needle and step on the horse half-heartedly!