The Su family suddenly suffers a catastrophe, and Su Wu escapes death by the skin of her teeth, accompanied by the family guardian spirit spider, Xuanzhu. To fulfill her father's unfinished legacy of ancient architecture restoration, she faces the Gu family's influence head-on, taking back the hard work belonging to the Su family. The road ahead is fraught with crises, and opponents repeatedly resort to underhanded tricks such as framing, kidnapping, and buying off judges to make things difficult at every turn. Relying on extraordinary wisdom and Xuanzhu's assistance, Su Wu resolves dangerous situations time and again, gathering all the evidence of crimes. After rounds of game theory and trials, she exposes the conspiracy of a crowd of villains at the bidding site, successfully winning the ancient architecture project. On the path of seeking the truth, Su Wu adheres to her original intention, vowing to investigate the old case clearly and comfort the hard work and past of the older generation.