In the early years of the Republic of China, Sheriff Xu (played by Zhang Guoqiang) formed an unbreakable bond with Jing Shi (played by Jiang Zhiguang) of a foreign company due to a case, and each received an oil painting as a commemoration of his achievements in solving the case on that day. Years later, the descendants of Sheriff Xu still take pride in joining the police force, and Xu Xiaoli (played by Yang Yi), who is known as the Sharp Girl, is one of the members of the police force
In the early years of the Republic of China, Sheriff Xu (played by Zhang Guoqiang) formed an unbreakable bond with Jing Shi (played by Jiang Zhiguang) of a foreign company due to a case, and each received an oil painting as a commemoration of his achievements in solving the case on that day. Years later, the descendants of Sheriff Xu still take pride in joining the police force, and Xu Xiaoli (played by Yang Yi), who is known as the Sharp Girl, is one of the members of the police force