They say that people who in their seventies would have told 90,000 lies throughout their lifetime. Dai Meng, Liao Duo Duo, and Hua Sheng are three individuals who use lies as a means to seek out the truth. Expert lie detector Dai Meng resigns from his job due to a mistake at work. He opens up a firm that specializes in solving all kinds of problems from emotional disputes, debts to work-related issues. As long as it does not violate the law, he will accept any job. Dai Meng relies on his expertise in analyzing the telltale signs of a lie to help him in his work. With business booming, he crosses paths with Liao Duo Duo, a fellow analyst, and they immediately have a go to see who's better. Dai Meng wins the round but gets stuck with her company.
Sun Ruo Wei entire family is killed on the orders of the Yongle Emperor in 1402, though she escapes death after being secretly adopted by Sun Zhong. Sun Ruo Wei becomes the concubine of crown prince Zhu Zhan Ji by chance, and continues to investigate the truth behind her family’s death. However, Sun Ruo Wei decides to abandon her revenge plans after realizing how dangerous it would be to destabilize the court for her own personal goals. Touched by Zhu Zhan Ji’s kindness, Sun Ruo Wei resolves to become a virtuous empress who can support him in times of hardship. Unfortunately, Zhu Zhan Ji passes away after a decade on the throne, and Sun Ruo Wei is honored as Empress Dowager once her 7-year-old Zhu Qi Zhen ascends the throne.
Gong Sunli is the grand-daughter and disciple of military commander Gong Sunyu. Jing Ke and Li have been in love with each other since they were children. While trying to protect Li during an attack, Jing Ke is poisoned. Li’s beauty has seized the interest of the Qin Emperor, Ying Zheng, and Li agrees to marry him to save Jing Ke.
