[This book is original, any similarities are inevitable, and it is purely coincidental.]
Jiang Yun, a "veteran" who had participated in many wars, retired after World War I to work in the patrol room. Later, by some strange combination of circumstances, he became the detective of the patrol room, investigating various cases. During the investigation process, Jiang Yun discovered that almost every case was related to Renhe People's Hospital, so he met Si Lin, a surgeon at the hospital, and the two got in touch and talked together, and together they solved many mysterious cases in the Republic of China.
Intention: No intention yet.