Modern audit elites dress up as "broom star" orphan girls in ancient times whose engagement was broken off and their parents were killed. In order to survive, she disguised herself as a man, and with her superb abacus skills and modern auditing and logical reasoning abilities, she applied to become the "Mr. Accountant" in the house of a certain cold-faced prince/Shaoqing of Dali Temple. I wanted to keep a low profile and live my life, but I was always involved in bizarre cases (corruption, murder, theft) - because all conspiracies cannot avoid the word "money"! She was forced to peel off details from the account books and became the key to solving the case, which also aroused deep suspicion and strong interest from her immediate superiors.