2. Chen Shanwen used to be a military doctor of the Kuomintang. When he was young, he learned the secret recipe of refuting bones from his grandfather Lai Gong. Since then, he has been good at Chinese medicine surgery, specializing in bone refutation, and has exquisite research on fracture, traumatic injury, rheumatism and erysipelas. Before liberation, he created the world-famous bone-breaking water. In the early days of liberation, when Chen Shanwen joined the Kuomintang, the People's Liberation Army captured him alive. Because Chen Shanwen was willing to hand over the secret recipe of bone refutation, he was treated leniently by the people's government. Later, after labor reform, Chen Shanwen became a pharmaceutical technician in Yulin Xinsheng Pharmaceutical Factory (later changed to Yulin Pharmaceutical Factory), and later became the attending doctor and deputy director of the pharmaceutical factory. According to relevant records, the Chen family is a rich man in Xinqiao, and Kerwin Chen learned martial arts by saving the fate of Lai Gong kidnapped by bandits.
Yulin is a famous boxing hometown in Guangxi, with a strong martial arts atmosphere and many martial arts practitioners. As an officer of the old army, even without a martial arts background, he has at least received basic training in boxing and gun fighting in the army. This is also an important circumstantial evidence for reference.