"Dong, dong, dong."
Hearing the knocking sound, Tan Qiuxu was just about to flip through the medical history book, and said in a deep voice: "Come in." He didn't even raise his head to see who it was.
Xu Anran stood awkwardly in front of Tan Qiuxu, both hands obediently placed in front of him, and called out: "Supervisor?"
Tan Qiuxu lifted his head to look at Xu Anran, and then raised his head again. It was only a split-second, showing his' indifference 'towards the disciple that was standing in front of him.
Tan Qiuxu once again buried his head into the medical history book, his voice becoming even deeper: "What happened?"