Qin Ming began to be in a dilemma, one side was Qinggangcao, which could be obtained immediately, and the other was Yucao for refining 'Buxindan'.

Qinggang Dan only needs one vajra grass, and the other auxiliary spiritual plants are eighth-rank and seventh-rank spiritual plants, and Qin Ming has already prepared them.

And Yucao is the magic medicine to heal the injury of the master's dantian, and it can also improve the physique, so Qin Ming didn't want to give up.

He had practiced Buxin Pill in his previous life, and the effect was heaven-defying. For Buxin Pill, Qin Ming had been looking forward to it for a long time.

"Banlan, do you know that there is a box here, a golden box." Qin Ming asked Banlan tentatively.

Banyan Mouse thought for a while, and tried to express in Qin Ming's mind, but Banyan Mouse couldn't speak yet, and what came from Qin Ming's mind was just a cloud of consciousness.

One person and one mouse danced and danced for a long time, and Qin Ming finally understood what the colorful mouse wanted to express.

"You mean you know there's a box, but you can't open it?"

"Squeak!" Banana Mouse nodded excitedly.

"It's okay, just lead the way." Qin Ming said.

Soon, the Banana Mouse brought Qin Ming to a golden box.

The colorful mouse jumped up to the box, chirping, trying to open the box.

But the box didn't have a handle at all, and the colorful mouse's paws were too small to use it.

"You don't need to try, you can't open it." Qin Ming patted the Banana Mouse to reassure him, "The owner of this secret realm must have specially designed this kind of box to prevent the Banana Mouse from opening it. The green pill has evolved, but it’s still so small, there’s still no way to open it.”

Qin Ming held the lid of the box with his hand, and when he exerted force, the box was opened, and the golden key inside was taken out.

Spotted Mouse saw Qin Ming open the gold box, turned his face away angrily, his cheeks puffed out.

Seeing that others could open it but it couldn't, Banana Mouse was a little annoyed.

"Okay, this secret realm is designed like this. If you can open it, you will probably eat up all the spiritual plants here." Qin Ming said with a chuckle.

He somewhat understood how this secret realm was designed. It is estimated that this secret realm mainly tested the observation ability of King Wu's disciples, and was harassed by colorful rats.

Among the Martial King-level magical beasts, the Banban Rat is the least courageous. As long as the warriors who are going through trials are a little careful, they will never be in any danger.

"Banlan, tell me all the golden boxes you know." Since there is a way to know about Meili, Qin Ming must take the opportunity to search for it.

Thus, Qin Ming and Ban Lan started a big sweep. During the sweep, Qin Ming also encountered many other warriors.

Some were in groups, some were alone, and some invited Qin Ming to go with them, but he rejected them all.

There were also those who didn't open their eyes to see Qin Ming alone, thought they were easy to bully, and died at Qin Ming's hands one after another.

Qin Ming doesn't like to bully others, but he doesn't forgive those who commit the crimes at his hands.

"Unless the King Wu protects the canyon, it will definitely be eaten by the colorful rats." Looking at the bones in front of him, Qin Ming sighed.

King Wu is here in the canyon, as long as he is careful, given the timid character of Banyan Mouse, safety is not a problem.

However, although the Banana Rat is the bottom of the Martial King-level monsters, it is not something Wuling can deal with, especially its poison. If Wuling is poisoned, it will definitely die if there is no antidote.

"This secret realm is the place where King Wu practiced. Warriors below King Wu will surely die if they enter."

Qin Ming thought of the swarming warriors, and shook his head. Those warriors who did not reach the King of Martial Arts probably suffered heavy casualties now.

It should be safe to stay in the forest outside and be careful of the pursuit of human fighters.

But in this canyon, the colorful rats are everywhere, and it is too difficult for warriors under King Wu to survive.