A famous killer who had washed his hands in a golden basin was tempted to come out again, only to be assassinated. The soul traveled to a war-torn ancient world and was reborn in the body of a defeated young monarch. Can he cope with and save the situation in the face of a covetous enemy and a country on the verge of collapse? Where is the younger brother who was reborn together now? If he can hold on to his country, where will he go? Hundreds of battles are fought in the chess industry, but who will overturn the country and determine the situation? (This article is of a slow-burning type and contains plots of brother-control with caution)