Country A and Country B are two powerful countries. Country B took advantage of the civil strife in A to invade several border cities and immigrate a large number of people into the city. The new emperor of country A came to the throne, revitalized the country's military force, forced country B to withdraw its troops, and used a soft policy to give the ordinary soldiers and people of country B within the territory time to return home. Unexpectedly, the civilian "Killing Barbarian League" organization emerged and launched a mass arrest and massacre of the soldiers and civilians of country B and the people of country A who had intermarryed and had good relations with people of country B. The story takes place in one of the small frontier towns.
Concept: In the wave, the darkness and glory of individual human nature