Xueshang was once a famous organization genius. Due to a conspiracy, his sect was destroyed, he was poisoned by a strange poison, and lost all his martial arts. He became the owner of the "Mingyue Inn" incognito. He thought he would spend the rest of his life in peace, until a girl named Lingyue carrying a mysterious fragment of a picture was chased and broke into the inn. The killer followed, but after triggering the inn's mechanism, the entire army was mysteriously wiped out.
When the snow merchant was dealing with the aftermath, he discovered a secret room under the inn that he had never known about. The complete "General Map of the Mingyue Inn" was clearly painted on the wall. Only then did he realize that in the inn he had guarded for many years, every tile and brick might be a fatal mechanism, and deep inside the inn, there seemed to be a greater secret sealed.
The true identity of the girl Ling Yue is the descendant of the guardian of another secret map. Her arrival was not accidental, but was deliberately guided here by the mastermind "Mo Zong" behind the scenes, aiming to use blood as a sacrifice to activate the true core of the inn. Xue Shang was forced to join forces with Ling Yue, and in the familiar yet unfamiliar labyrinth of the inn, he used ubiquitous mechanisms to deal with the masters of the "Mo Sect". While cracking his own poison and protecting the girl, he must uncover the ultimate secret hidden in the inn - which is not only related to the Tiangong relic, but also closely connected with the truth about the destruction of his master, and even the pattern of the entire world.
