Anything, as long as contaminated with its gastric juice, will be completely digested, not to mention flesh and blood.

No matter why Mu Yu Xiu waited so high, as long as he was swallowed by him, he would die.

As soon as Mu Yu was swallowed into the stomach of the night king lion, he felt a corrosive liquid with sour odor coming towards him.

He immediately opened the Vajra Ruyi mask and wrapped his whole body without allowing the liquid to invade his body.

"These are the stomach juice of the night lion."

As soon as Mu Yu's eyes brighten, there are several kinds of taboo poisons with terrible toxicity recorded in the book of ten thousand poisons. Once they are infected, even the strong in the holy realm can hardly resist them.

However, the materials for refining these taboo poisons are so rare that it takes thousands of years for the hall of ten thousand poisons to gather together.

Among them, there is a kind of taboo poison called silent night Mi Han, whose main material is the gastric juice of night king lion.

The night king lion does not exist in Tiannan, so it is impossible for Wandu hall to collect its gastric juice.

However, after the night king lion swallowed Mu Yu, it also reminded Mu Yu that his gastric juice was very precious and could not be wasted.

Mu Yu took out several jade bottles made of special materials and filled a small part of the stomach juice of the night king lion.

However, just a moment later, the jade bottle was corroded and turned into a pool of liquid.

"The corrosiveness of the stomach juice of the night king lion is really terrible."

Mu Yu was surprised, but he was not completely unable to install them.

After thinking about it, Mu Yu finally used the way of space to open up a special space inside the jade bottle, so that the stomach juice of the night lion could not directly touch the surface of the jade bottle.

In this way, the jade bottle was no longer corroded.

Soon, Mu Yu drained all the stomach juice of the night king lion and put it into the jade bottle, which was full of more than 20 jade bottles.

"You're a huge man. How can you get such a little gastric juice?"

Mu Yu is still not satisfied. He needs a very high concentration of gastric juice to refine the cold in the still night. Although he has more than 20 jade bottles, only half of them can really be used after refining.

Mu Yu didn't leave immediately and continued to wait for the birth of new gastric juice. He rarely came to the stomach of the night king lion, so naturally he had to collect more.

"There's something wrong with my stomach."

Night lion lying on the ground, the whole body is uncomfortable, very painful murmured: "really evil door, as if some indigestion."

Before it engulfs a city, also can easily digest.

Did not expect today, just swallowed so little things, it produced a feeling of indigestion.

"Am I old?"

The night king lion is a little depressed.

Of course, he didn't know that there was an unscrupulous man in his stomach who took all the gastric juice away.

Lost gastric juice of it, nature can't digest just swallowed things, so let its stomach very uncomfortable.

In the stomach of the night king lion, every new drop of gastric juice was born, Mu Yu immediately controlled the jade bottle and brought it in.

After a long time, Mu Yu collected 50 bottles of gastric juice.

"It's too slow. I have to think of other ways to speed up the production of gastric juice."

Mu Yu frowned and began to think seriously.

After a while, suddenly thought of something, Mu Yu showed a funny smile.