The Prince of Zhenbei falls on a blood-soaked battlefield, and Qin Hao, the hostage prince and heir, awakens a summoning system overnight! Wielding the world-shaking power of a legendary overlord, he commands the Eighteen Riders of Yan Yun, an invincible force. An imperial edict grants him a princely title and a fief, but deadly undercurrents lurk along his path. The prime minister lays a deadly trap, while mounted bandits lie in ambush to take his life. Against all odds, Qin Hao crushes his enemies and razes the bandits' stronghold, obtaining a summoning card for the Tiger-and-Leopard Cavalry. Establishing himself in Beiliang, he builds strength and sharpens his edge, commanding an elite army in full armor as he sets his sights on the vast empire!