The Republic Of China’S Detective summary:

In Shanghai in 1914, many forces had gathered to fight for their own interests. This included warlords, the Japanese, the old Qing court, colonial concessions and gangs. The survivor, Xia Sheng, also came to Shanghai to find the enemy in Tucun. With his strong detective instincts and Feng Xichen as his companion, they will solve multiple cases and identify the true culprits whilst trying to solve a mystery of their own.