Xie Jiu'an is an accountant in the market, and is actually the planner of the Qinglin secret guard. He relies on deductions from a "Trivial Note Book" to solve the case.
Yun Zhao is a "drama queen" who was born in a theater troupe. He pretends to be stupid and behaves well, but is actually very smart.
In the last years of the dynasty, the emperor's bloodline has been hidden from the public, and the whereabouts of the only remaining princess in the Eastern Capital remain a mystery.
A case of missing money from five houses broke the peace, and the two were forced to work together to investigate the case.
He calculated everything, but he couldn't calculate her heart; she pretended to be crazy and acted foolishly, biasing her true feelings.
From the rise and fall of vegetable prices to the conspiracy in the court, clues are revealed layer by layer.
Men in black are chasing after people, secret guards appear, totems appear, and the truth is approaching step by step.
Who is she? Who is the real heir of the emperor?
An investigation that started in the market revealed a dusty life story.
The clever male protagonist × the funny female protagonist work together to break the situation, and the laughter is burning.