C95 Become stronger (2)

Thinking that the method that his old man had given him was very useful and that it was about time he gave him a call, he took out his phone and found a rather remote place to call the old man.

When the call connected, the old guy's voice came over: "How was it? It's a good idea, isn't it? "

"Yes, grandpa, your method is very useful. Thank you." Liu Fei's voice was filled with a foxy tone