There are rumors in the world that the Spring Banquet is coming and the evildoer will die.
The best dancer in the world, Ruan Tinglan, and the cold-faced killer Gu Hanzhi are both known as the "Spring Banquet Twins". One goes to the banquet and dances, investigating crimes and collecting evidence among the drinking orders, songs and jokes; the other hides in the dark, guarding the retreat and intercepting the return route, and waits for the red seal to fall before taking out the sword. Over the years, they have used spring banquets to judge evildoers with good names, and as a result, they have become the two sharpest and most difficult to get close shadows in the world.
Until the case of the Shen family in Jiangnan, Ruan Tinglan found an old Spring Festival invitation in the secret room. Her own name was written on the post, and she was charged with: killing her father and mother ten years ago, and pretending to be an orphan.
From then on, the post holder became the post master. The sisters fled to Qingzhou and re-examined the old feud between the Ruan family, only to find that the charges, testimonies, files and rules for the Spring Banquet had all been rewritten. The so-called justice for heaven may just be a knife borrowed by the organization behind the scenes, the Wuming Banquet.
Ruan Tinglan had to face the bloody mark in his incomplete memory, and Gu Hanzhi had to learn for the first time not only to listen to his sister's words. They want to find out whether there was an innocent soul under the sword, and they also want to ask: when justice can be forged, who is qualified to decide life and death for others?
