chapter 155 Why is he so mysterious?

"Dean Zheng, I also take my leave." Qian Haoming also said goodbye to Zheng Tiancheng. "Professor Qian..." "President Zheng, I appreciate your kindness, but I still have some things to deal with. I will have to wait until the next opportunity to bother you again." Zheng Tiancheng still wanted to retain him, but Qian Haoming did not give him another chance. After finishing speaking, he turned around and left with a trace of regret. After all, he didn't have the chance to get to know and make...