Was It the Origin of Martial Arts, or a Mythological Tale?

State City Slums:

Principal Shi Ji was very excited.

Because today, several fine specimens had delivered themselves to his door.

Some of these specimens had extraordinary eyes; others had extraordinary hands.

He happily cut them off and soaked them in secret medicine.

Then he pried open their skulls, wanting to dig out all their secrets.

To his surprise, this batch of specimens had actually been quite proactive in revealing their skin-changing methods.

That made Principal Shi Ji even happier.

He personally tested the methods on several prime specimens.

He discovered that the skin-changing methods truly were mysterious.

"But they are inferior to my limb-replacement methods."

Principal Shi Ji held this batch of specimens in utter contempt.

"So many of you, yet your research is not even as good as mine alone."

"If your brains are no use, you might as well die!"

However... after that, there was no after that.

A small team from Human World and In the Red Dust that specialized in changing skin vanished silently in Shi Province just like that.

No one ever saw them again.

Chu Qing was also very happy.

Because:

The things he had gotten from the Rebel Army were exceedingly precious.

First came a large chest of things resembling Stone Bamboo Bright Pearls.

They looked like Stone Bamboo Bright Pearls, but they were three to five times larger.

Moreover, the medicinal properties within them were even stronger.

He had Zhao Hongxiu secretly refine several, then swallowed them.

Then he discovered that these things could actually nourish flesh and blood.

Stone Bamboo Bright Pearls could rapidly raise one's sinews and bones cultivation.

So:

These oversized Stone Bamboo Bright Pearls could rapidly raise the Blood and Flesh Realm.

Their efficiency surpassed that of other secret medicines and materials.

These things were quite good.

But