The dean was one of the higher-ups at the hospital- it went without saying that he knew who Guan Xin was… She was Guan Xuemin’s granddaughter, daughter of one of the shareholders! A lower ranking doctor might not know about that, but the dean was no low ranking doctor! No one would want to cross a girl with a background like that.
Up until that point, the dean was still trying to figure out exactly how close with Guan Xuemin this Lin Yi was… That was a factor that directly affected the seriousness of the situation. The whole thing would blow over if they just knew each other… A closer relationship, on the other hand, meant that Guan Xuemin, whether intentional or not, might’ve made the dean look bad in front of Mister Qin…
And out of nowhere, it turned out that Guan Xuemin’s granddaughter knew Lin Yi- it meant that Lin Yi was close with Guan Xuemin’s whole family!!