The vast world stretches beyond sight. The sun and moon turn in endless cycles.
Nangong Mule is transported to an unfamiliar dynasty. Through a twist of fate, he takes someone else's place and becomes the Mourning King of the Lishang Dynasty. After awakening from a hibernation pod, he takes four sword strikes meant for the king and nearly dies far from home.
He is an outsider in this era, and also the one who drives it forward. In the grand scheme of things, it seems everything may truly have been arranged.
The moment he awakens marks the beginning of the Lishang Dynasty's succession struggle. Before he knows it, the fate of the outsider Nangong Mule is bound tightly to that of the Mourning King Nangong Mule. The assassination at Mount Yuetai is only a warning. To stay alive, Nangong Mule must start by finding the culprit behind the attack, while dodging open threats and guarding against hidden arrows amid the power struggles...