C154

Seeing the guilty look on Tang Tian's face, Lu Xiaofeng immediately comforted him.

"Grandpa Tang, this isn't your fault, you don't have to blame yourself."

Tang Tian had lived for dozens of years, so he naturally knew how to control his emotions.

"Haha, of course I know. "In fact, science is just a double-edged blade that can benefit or destroy humans."

Lu Xiaofeng said:

"Grandpa Tang