Not sick? Is "five labors and seven injuries" not an illness?
However, Song Qingfeng understood in an instant what was happening. Perhaps in his teacher's eyes, this truly couldn't be called an illness, and in all the medical knowledge he had seen, there indeed wasn't such a disease.
The key point was that every disease had a starting point, and if this point wasn't correct, it couldn't be defined as an illness. Therefore, under this premise, Song Qingfeng slowly nodded.
Seeing Song Qingfeng's reaction, Li Fei suddenly laughed and immediately said, "It seems you've figured it out. Go on, tell me. If you can explain it clearly, and you're at least eighty percent correct, then I'll take you on as my disciple."