Solution

In the eleventh year of the reign of Emperor Datong, the third year after the "Edict forbidding the practice of martial arts in the world" was promulgated, the king sitting on the Feng Pavilion held the long sword inserted into his chest, and looked at the man holding the sword with cloudy eyes. This face had not been seen for a long time, and the memory suddenly returned to fifteen years ago... On a bright spring afternoon, a police officer who was a servant of the Gusu Prefecture was heading to Huzhou to handle a case together with two Tiqi Lang from the Imperial Zhenfu Division.