Prequel to Cangyan Swordsman

The yellow wind in the desert reaches the edge of the world. Thirty-seven people's abandoned shop affects the fate of the entire world. Those thirty-seven people who are invincible and at the pinnacle of martial arts are the entire world. Until "He" comes. "He" with the black knife, "him" who killed the fastest swordsman in the world. "He" was hunted by the court and the entire world.