In Jingcheng in 1998, the hustle and bustle of the opening ceremony of Zhendan Martial Arts Gym was interrupted by a muffled sound - a strange man suddenly fell to the ground, leaving only a poisonous needle as thin as an ox's hair at his vital gate. When veteran detective Gao Dingkang investigated the case, his dust-laden memories suddenly surged, involving the secrets of his close friend Guo Chuan many years ago and the legendary Xiaoyao Island.
At that time, Guo Chuan's daughter Guo Yitong was setting foot in this small northern city. As a secret seeker sent by Xiaoyao Island, his target is the secret book of the island that was stolen deep in the martial arts hall. However, the two discovered that the deceased in the murder and the elegant head of the martial arts school, Song Yao, were closely connected with the legend of Xiaoyao Island.
The poisonous needle hides the martial arts code, the secret room locks the secret of protecting the island, and the last words of a best friend hide the foreshadowing of a reversal. When the butcher knife of the rebels on Xiaoyao Island approaches, and when outside forces covet the island's inheritance, Guo Yitong holds the long sword passed down by his father, and Gao Dingkang holds the ironclad evidence of criminal investigation. This pair of partners who span the world and the world will eventually uncover the truth of the murder amidst the light of swords and clues and protect the tranquility of the secret island.
Intent: History, martial arts, fantasy