Su Cijing, the 49th generation head of Xuanmen Zhengdao, whose Taoist name is "Cijing", failed to escape the tribulation, and his soul traveled back to modern times and became the so-called cannon fodder stand-in, and was kicked out of the house by the male protagonist. Renting a haunted house, I accidentally discovered that the original person's death was not an accident, but a long-planned blood sacrifice conspiracy. Let's see how the heroine kills demons with a mahogany sword and defends her rights under the Civil Code. How to use science (law) and metaphysics (spells) to rectify the world, and have a well-matched love relationship at the same time.