He had never imagined that these top luxury goods, seafood products specially preserved with runes related to cultivation, could be shipped to the north in large quantities and sold.

"The rich have wine and meat, while the poor freeze to death on the streets."

"Tight in front, tight in back?"

Although Zhang Mingtu had seen such scenes many times, there was still a big difference between what his future brothers saw and what he saw himself.

Seeing this situation, my heart is still filled with waves.

However, he just listened briefly from the side and secretly kept these events in mind. Now he did not have much ability to change it.

He came to the corresponding market for other important matters.

He needs to find many special medicinal herbs to refine the most important elixir needed for practicing the Nine Transformations of Dragon and Snake, the True Essence Blood Elimination Pill.

That was a semi-finished top-notch method for changing a person's physique that he and a generation of martial arts saint had created together.

The reason why it is called a semi-finished product is that the threshold for entry into this method is too high. Even with Zhang Mingtu's peak master level and the hands-on teaching of the Martial Saint, it still took him half a year to truly learn it.

The most important and fundamental thing for human beings to practice cultivation is marrow cleansing and blood transfusion.

The source of life's strength lies in bone marrow and blood.

Blood is produced by bone marrow, and the most important part is bone marrow.

Changing the bone marrow and blood can naturally change a person's entire body. This is the most fundamental essence of the Nine Transformations of Dragon and Snake.

This was an idea proposed by Zhang Mingtu, and created by Yu Zhifu, the Martial Saint who could almost reach the level of rebirth by a drop of blood.

According to Zhang Mingtu's own opinion, it actually makes a powerful change to a person's physique and changes himself directly at the genetic level.

To put it in terms of the previous life, it means changing one's own genes after adulthood, eliminating inferior genes, eliminating redundant genes, and retaining better and stronger genes.

The technology of the previous generation has not yet fully reached this step, and there are too many taboos and problems.

There are also ethics, morality and corresponding scientific and technological limitations.

Logically speaking, the normal path is to first open a science and engineering university, then popularize scientific and cultural knowledge, build a scientific and cultural platform, and climb the technology tree, which will take hundreds of years.

But there is a Martial Saint in this world.

The Martial Saint is an unreasonable cheater.