Rumor has it that when the Spring Banquet Invitation arrives, a villain's life is forfeit.
The world's greatest dancer, Ruan Tinglan, and the cold-blooded assassin Gu Hanzhi are known together as the "Twin Beauties of the Spring Banquet." One enters the banquet to dance, gathering evidence and investigating crimes amid drinking games, lyrics, and laughter. The other lurks in the shadows, guarding the escape route and cutting off any way back, waiting to draw her blade as soon as the red seal falls. For years, they used the Spring Banquet Invitation to judge villains cloaked in good reputations, becoming the two sharpest and most untouchable shadows in the martial world.
Until the case of the Shen family in Jiangnan, when Ruan Tinglan discovered an old Spring Banquet Invitation in a secret room. It bore her own name, and the charge read: murdered her parents ten years ago, then passed herself off as an orphan.
From then on, the one who issued the invitations became the one named in them. The sisters fled to Qingzhou to reinvestigate the old fire at the Ruan family home, only to discover that the charges, testimony, case files, and rules of the Spring Banquet Invitation had all been rewritten. Their supposed righteous crusade might have been nothing more than a blade borrowed by the shadowy organization known as the Nameless Banquet.
Ruan Tinglan must confront the bloody marks in her fractured memories, while Gu Hanzhi must learn, for the first time, not to simply obey her elder sister. They must find out whether innocent souls were ever struck down by their blades, and ask: when justice can be forged, who still has the right to decide who lives and dies?