C75 The Effect Was Magical
Zhang Zhen felt as if the knowledge in the book was being inputted from a computer into a USB drive, accurately and quickly!
"This is too amazing! How did he do it?" Zhang Zhen thought in surprise.
In order to confirm that it was indeed the ruler's effect, Zhang Zhen took the ruler from the book and tried it again.
As expected, the effect was completely different from the previous situation