The story takes place in the ancient capital of Yanyu. Chang'an. Du Xiaonao, who was born in the business world, got acquainted with Lu Zhaoge, a down-and-out talent, and Su Yanran, the jewel in the eye of a wealthy businessman, due to an accident of sending the wrong letter. The three of them were involved in political intrigues in the capital and family injustices. Humorous and witty, they used all kinds of strange tricks to avoid dangers and made countless jokes. The relationship between the three grows through cooperation and misunderstandings. Facing the impact of family, love and the test of human nature, they gradually mature and meet their true selves. In the end, they work together to uncover the mystery of the case that has been hidden for many years, smile at the storm, and return to ordinary life. This book is divided into three volumes. The first volume is about the first encounter in the market, the second volume is about the confrontation of power, and the third volume is about the truth and the way home, all intertwined with laughter and tears.