As it turns out, Rong Jincheng claiming to be a genius-level medical doctor is no exaggeration.
This can be gleaned just from the attitudes of those in the hospital towards him.
At first, Lu Xinbai thought it was because the hospital was part of the Rong Family, but later she realized that even the doctor who performed the surgery on her mother had to call Rong Jincheng 'big brother.'
Bear in mind, that doctor is nearly fifty, while Rong Jincheng is just over thirty.
If he can't be a big brother due to age, then it must be because of his skills...
Although Lu Xinbai always watched Rong Jincheng's medical skills with a critical eye, the fact is that her mother's condition really improved more and more after he returned.
