C597 He Still Couldn't Say It out Loud!

Ren Tianxing waved his arm, and Lin Yu felt a force coming towards him. He did not resist and stood up.

"This method has its pros and cons. Although it is obscure, it is still unknown whether it can be detected by others. Everything is not absolute, so it is best to use it wisely," Ren Tianxing instructed.

Lin Yu nodded. He also understood this principle. He replied, "Uncle Ren