Professor Gu went on about the biology and pathology of the case. He detailed his thought process during case assessment and the reflections he made after.
The sight of the old professor's snow-white hair filled Zheng Ren with emotions.
Professor Gu had surpassed Master rank without the help of the System. He had relied on years of experience and hard work to get to where he was now, which was somewhere between Grandmaster and Legend.
The System had given Zheng Ren a boost, but he decided he ought to double down on his efforts.
Fang Lin noticed the time: it was five minutes to 8:00 am. He shuffled closer to Professor Gu and, in a whisper, reminded the old man of the clinic's opening hours.
"Alright, Little Zheng, I think our time is up. Leave me your contact details. Drop by my office whenever you're in town," Professor Gu said in the end.
Birds of a feather flock together. Zheng Ren's correct diagnosis had impressed Professor Gu.
