C3422 The Mysterious Brotherinlaw of Mine?!

At this moment, Principal Zheng, who was kneeling at Zhang Xiaofann's feet, no longer had the arrogant and conceited attitude he had before. In front of Zhang Xiaofann, he was like a dog that only knew how to nod and bark. He was like a caterpillar that only knew how to respond.

"Zhang... Zhang... Grandpa Zhang... I'm sorry... I'm really sorry..