After three years in prison, everyone said Chang Lin's life was ruined. A former convict trying to raise four children? It was a pipe dream.
But nobody knew that during those three years, an old madman in prison had forced Chang Lin to take him as his master. Chang Lin learned a whole range of ancient medical arts and Zhuyou rituals. After his release, he chanced upon a volume of notes left behind by his grandfather and mastered a lost secret art that let him read qi, discern baleful energy, assess homes, and dispel yin afflictions. From then on, he used these skills to make his way in the world and raise four children, finding a sliver of hope in the cracks of survival.
But his good fortune didn't last. Chang Lin became entangled in another murder case: the victim had fallen to his death, and Chang Lin had been the only person in the room with him moments earlier. Shen Zhaochuan, captain of the criminal investigation team, immediately launched an investigation and arrested Chang Lin as the prime suspect.
With no other choice, Chang Lin had to move through the darkness, secretly watching over the children while investigating the real killer. This time, he absolutely could not be wrongfully imprisoned. He had to find the true mastermind.
As a result, Chang Lin grew increasingly adept at the techniques in his grandfather's notes. The old madman had taught him the basics; his grandfather's notes were the next level! What other secrets did those notes hold? As middle-aged Chang Lin grew, they slowly came to light.
