"Qi Men Dun Jia Xuan Wei Secret Volume": a yellowed and solemn copy handed down by Lu Yanzu. The handwriting is usually blurred, but the full text will be revealed when exposed to blood. It contains Qi Men formations, Feng Shui layouts, fortune telling, talismans and Taoism, destroying evil and resolving disasters, seeking good luck and avoiding evil, changing luck and borrowing luck, Taoist fighting methods, etc. A full set of true Taoist techniques, divided into five levels: elementary, middle, high, peak and supreme. It can not only change one's own fate, but also boost aura, popularity, and promote romantic luck. At the same time, changing one's fate against the will of heaven requires bearing the backlash of cause and effect. The higher the level of cultivation, the stronger the backlash. The male protagonist needs to gradually resolve the cause and effect and break through the shackles.