C912 Special Professor

Zheng Hao didn't need to report to the principal, he just needed to go up directly.

Everyone in the administration building knew Zheng Hao.

Zheng Hao came to the door of the principal's office and knocked lightly.

"Come in!"

Chen Xianlin's voice sounded from inside the door.

Zheng Hao opened the door and walked in. He saw Chen Xianlin talking amiably with a gray-haired teacher in his fifties