It's common for capable students to be arrogant and show less respect for teachers, the teachers must possess greater ability to keep the students in check. For Xie Wanying, being an intern herself, to make the other person submit was indeed difficult. However, everyone could see that Xie Wanying chose this person not for any particular talent they had, otherwise, she wouldn't have mentioned afterward that she wanted to take on Junior Fan Yunyun, whose grades were nothing outstanding.
"Teacher Xie," Geng Lingfei called out as he followed behind Xie Wanying.
Just by this form of address, He Guangyou and the others realized that this person was also clever.
Geng Lingfei wasn't stupid. A top student, he understood that age meant nothing. There are many doctors who stand out at a young age in clinical practice. It's survival for interns to follow whoever is more skilled.