Where Is the Sword?

Realistic version: In the thirtieth year after the natural disaster ended, a corpse plague broke out in the west of Taihang. Fengyuan City sent 30,000 elites to cross the river to strangle the infected, but almost all of them were wiped out within three days. Qin Wuya, the lord of Zhongzhou City, was assassinated by an unknown assassin in an area where corpse plague was prevalent, and later became acquainted with a twelve-year-old boy. The story begins with this twelve-year-old boy. Freehand version: There is a kind of sword in this world that will cry when stained with blood. There is a kind of person in this world who laughs when he draws his sword. There is a river and lake in this world, and everyone is for themselves. At some point, a voice sounded from the rivers and lakes. Jianghu is sick and needs treatment... Traditional martial arts, one sword to control everything!