Once hailed as a military prodigy, Qin Chen falls victim to a deadly conspiracy that sends him plunging into the forbidden death canyon of the mainland. Against all odds, he survives and awakens the ancient sword's latent power. Centuries pass, and a boy named Qin Chen unwittingly inherits his legacy in a distant corner of Tianwu mainland. Despite his royal lineage, he faces neglect in King Dingwu's palace due to his mother's humble background. Determined to rewrite his destiny and safeguard his cherished ones, Qin Chen embraces the mantle of protector for the five kingdoms, embarking on a martial arts odyssey to reclaim his place in the sun.