C71 All Living Things Are Born

Mu Xiaobai didn't put the book down casually. Instead, he said to the system.

"How many Spirit Stones does learning this book require?"

"The content of the book has nothing to do with cultivation. There are a total of 3800 words in it. You can learn it after spending 5 gold coins!"

The system quickly replied!

The system was quite fair. It did not even need to use Spirit Stone