He was reborn.
In his previous life, he was a medical doctor in Longguo. But a medical accident left his hands trembling, trapping him in theory for the rest of his life. He eventually developed terminal lung cancer after smoking for a long time and died without ever performing a single operation as lead surgeon.
In this life, he discovers that he has transmigrated into the body of a lecturer in the First Department of Surgery at the affiliated hospital of Neon Dongdi Medical University in the 1980s.
The good news: His father-in-law is a professor in the First Department of Surgery, and he has only one child, a daughter. His wife is also a famous lawyer in Tokyo, so he's got powerful backing.
The bad news: That backing seems to be about to crumble. The original owner of this body left him an ex-girlfriend who is pregnant and considering taking her own life.
Even worse, her underage younger brother might show up to "pay him a visit" with a kitchen knife at any moment.
Fortunately, he gets the golden finger of a trait-extraction System. As long as he operates on patients himself, he can extract traits from them.
But gradually, he realizes that something seems off about this System.
From a corporate CEO, he extracts [Master of Time Management].
From a yakuza heir, he extracts [Ladies' Man].
??? This System seems to be egging me on to do something...