It's hard to blame the friends he arranged for this situation. After all, the Mu and Wang families have many relatives, and they mainly focused on Wang Fengsong and Mu Xiaowei's family. They didn't even need to make contact; they simply swapped the exam permits, which was just a matter of a piece of paper. They certainly couldn't just go up and check whose name was on the permit. Moreover, the usually ostentatious Wang Fengsong didn't throw a big banquet this time.
So, they only found out that he had been accepted to Qing University after Mu Yanming and Wang Fengsong set off for the school. It was obvious that someone with such poor grades could never get into Qing University. Thus, they attempted to contact Qin Kaize and began their investigation. However, it had dragged on for so long that it felt as if they had vanished into thin air. After more than ten hours, they still hadn't found a single clue.