Yu Guihai found three large pots and cooked them together. When he started to use his hands, he realized that the speed was very slow!

In order to fully extract, each medicinal material was first boiled and extracted twice with water, and then the servants were asked to bring several large vats of spirits, which were then boiled and extracted three times with the spirits. This was to prevent the fat-soluble components from being released.

If there was no alcohol, he would even want to extract it twice with pure alcohol.

After this set, most of the night passed.

Yu Guihai had to summon his servants to set up several more large pots and boil them at the same time. At dawn, he finally got rid of all the medicinal materials.

After removing the medicinal residue, he placed seven large vats in front of him. The ten medicinal materials were divided into seven portions for decoction, and each vat corresponded to one-seventh of the extracted liquid.

"Now, you pour these medicinal liquids into the pot and boil them all into a thick paste for me."

Yu Guihai didn't sleep all night, but he was not sleepy. Instead, his eyes were shining and he was very excited and directed his slaves to work.

The servants were terribly sleepy, but they did not dare to neglect at all, and they all steeled themselves to start cooking pots.

In the middle, Mr. and Mrs. Yu Renlong came once and didn't say anything. Instead, they gave some encouragement.

This made Chunlan and all the servants stunned. No one knew why the master and his wife were so doting on the young master.

It was not until dusk that all the medicinal liquid in the seven large vats was boiled into a paste, and all was scraped into a pot, which was completely black and filled with half of the pot.

He finally condensed the quantity of ten medicinal materials into one.

"Ha ha!"

Yu Guihai smelled the strong aroma of the medicine, laughed, and felt an overwhelming sense of accomplishment.

The scent of the medicine entered my nose, and I immediately felt my mind clear. I looked around and saw that although the slaves who had been busy all day and night were tired, they were all in good spirits.

This fully proves that this ointment is indeed effective in soothing and replenishing the mind.

His idea worked!

However, Yu Guihai felt it and felt that these ten medicinal materials were still not enough.

His spirit has been upgraded to its basic limit and is definitely stronger than ordinary warriors.

In addition, since he condensed years of hard work from others into just a short moment, he needed far more medicinal materials than ordinary warriors. Of course, other warriors cannot take this kind of medicinal food every day. Generally, taking it once a month is enough.

Digested!

"Ten copies is not safe, at least twenty copies are required. It seems that there are only so many medicinal materials to soothe and replenish the mind in the warehouse. I might as well get them all."

Thinking of this, he ordered Chunlan: "Chunlan, take someone to bring all the soothing and replenishing herbs from the warehouse and cook them for me according to the young master's method."

"Also, give me another pot. I want to refine the skin-refining medicine."

Seeing that the marrow-refining medicinal diet could not be obtained today and the upgrade points could not be wasted, Yu Guihai decided to refine the skin-refining medicinal diet to upgrade the eight-door vajra body first.

Chunlan tried to persuade her to no avail, so she had to change a group of servants and start training again.

Yu Guihai got a pot and made the skin-refining medicinal diet himself!

There is really no technical content in medicated diet. You just need to prepare the medicinal materials according to the formula and put them into a pot, add the animal skins, and then add water to simmer for an hour or two.

All kinds of medicinal materials are obtained from the family warehouse, and all high-quality medicinal materials of old age are selected. The most precious and best beast skins are directly selected.

"Master, you are just practicing. There is no need to use such good medicinal materials and animal skins." Chunlan, who was following next to her, couldn't stand it anymore and reminded her with all her heart.

"Don't be afraid. Besides, I have other uses for these medicinal foods."

Yu Guihai uses it all for himself, so of course he is not afraid of the price. As the only child of the Yu family, he doesn’t use the best things, so is it possible to leave them to outsiders?

He boiled two large pots in one go and filled four large wooden barrels.

"Master, how can you eat the medicinal food after you have boiled so much skin-refining food?" Chunlan looked at the four large wooden barrels of medicine and felt worried.

"Don't worry so much. Hurry and help the young master and I will take it back."

Yu Guihai rolled his eyes, picked up a wooden bucket with one hand, and walked out of the kitchen.

Seeing this, Chunlan hurriedly picked up the remaining two large wooden barrels and followed them.

After returning to his residence and picking up Chunlan, Yu Guihai picked up a big wooden bucket and started gobbling it down.

Not long after, he swallowed a bucket of medicinal food, then the second bucket, and the third bucket

The reason he ate so much was not because he was hungry and hadn't eaten all day and night, but because after refining his internal organs, his internal organs' digestion ability increased dramatically. These medicinal foods entered his stomach and were digested in a matter of seconds.

He stretched out and felt a warm feeling all over his body, as if he was soaking in hot water. This was the feeling of the nutrients absorbed by him subtly moisturizing his body.

"Upgrade the Eight Gates Vajra Body!"

On the invisible interface, the upgrade points refreshed last night were still used, and they happened to be used at this time.

The upgrade points refreshed tonight can wait until tomorrow when the marrow refining medicinal diet is ready to upgrade the Infinite Rivers Art.

Boom~

A thunderbolt on a clear day.

As soon as Yu Guihai's head was shaken, countless scenes of cultivation emerged, each of which was a scene of him practicing hard on the first of the eight gates of the Vajra Body. He was sweating profusely, working hard, and feeling the pain in his muscles caused by every move.

If he hadn't been sensible, he would have truly believed that he had practiced this skill for a long time in the past.

The Eight-Door Vajra Body is very similar to the Infinite River Technique. It mainly uses its own strength to temper the body, but its methods of exercise are different.

The eight-door vajra body divides the human body into eight doors. At the skin-refining level, the pores all over the body are the skin-refining door, which is the first door.

When practicing, the whole body's strength is mobilized, the skin is inflated, and the pores are squeezed, so that the pores form breathing doors, which can breathe in and out external gases, and combine the strength to form a unique skin refining method.

The skin refining effect of this method is not inferior to the double flushing of qi and blood in the Jianghe Boundless Jue.

Soon, the improvement was completed. Yu Guihai opened his eyes and tested it. He found that the skin hardness had approximately doubled, and the improvement effect was no different from that of Jianghe Boundless Jue.

It can be seen that this exercise has a good body-building effect.

After checking the attributes, there was much less improvement. The force-sensitive bodies only improved by two points each.

However, he understands that this is because the foundation is different. His three major attributes are too powerful now, and it would be good to improve them.

After the promotion, he fell into a deep sleep. He wanted to take a rest and recover so that he could cope with the upgrade to the marrow refining level tomorrow.

Late at night, the bright moon hangs in the sky, casting cool moonlight.

In the charred ruins after the raging fire, there are broken walls and ashes flying.

A black shadow came here, and with its footsteps, it slowly came to a large pond in the middle of the ruins.

This pond has also been baptized by fire. The lotus flowers and plants in it have been boiled to death, and the koi fish and shrimp are completely dead. It emits waves of stench in the night wind.

"Old Father Wusheng, this is a foreign land! Come out." The deep voice of the black shadow echoed in the dead ruins.

Suddenly, ripples appeared in the pond, as if something appeared from the bottom of the water.
Chapter completed!