C133 Strange Letter

"That's good, that's good. I have to hurry up and tell this to the others before they... " Song Yu's father said time and time again as he opened his phone.

"Wait." Song Yu held down his father's hand.

"What's wrong?" Song Yu's father thought that he was not as smart as his son, so he was willing to listen to his son.

"Dad, don't tell anyone else