Looking for Old Friend

Su Yu handed Wei Heng a photo that looked worn out. Photo of a young man.

"His name is Ye Mubai, he's one of my classmates in middle school. Find that guy and find out what he's been up to after graduating from high school!"

Why did Su Yu suddenly look for his old friend?

Wei Heng wasn't sure this was the right time to make an old friend. They should be focusing on solving Chairman Li's case. But Wei Heng did not voice his thoughts to Su Yu, he obeyed without hesitation.

"You can start looking for him by asking for data from Yuei Middle School. Headmaster Pei will help you if you mention my name. Also, make sure that he won't give out data on the man if someone else comes to ask."

"You want me to block the other party's search?"

"Yeah, don't leave any traces of him."

Maybe this person was really important because Su Yu looked for him after a few years and didn't want his information to fall to the other party, Wei Heng thought.