What kind of person is he?

"Doctor Campbe, who do you think this Dr. Y is?" In the inpatient department of respiratory medicine, Harbinger Campbe had just picked up a patient's medical record and was about to check the patient's condition when Doctor Che next to him looked at him again. "Who knows?" Harbinger Campbe raised his head helplessly. He has answered this question countless times just since he got off work at noon. It seems that starting from Nurse Kobayashi, every time she meets someone, she will discuss this...