Mr. Gu has a particular fondness for my mouth.

Lin Miaoyu unexpectedly acquires a fraud-detection system. Because she always speaks the truth, she faces setbacks in her career. Later, she becomes President Gu Qingyan's assistant, helping him repeatedly avoid pitfalls and achieve successful investments. Her secretary, Fang Man, and Gu's second uncle plot against her, but she is fortunately rescued by Vice President Huo Lian. After the system malfunctions, she falls into a slump, but Gu Qingyan warmly supports her and exposes the conspiracy. Lin Miaoyu wins projects through her own abilities. After learning the reason for the system malfunction, she refuses to upgrade, confesses her feelings, and finally, she and Gu Qingyan become a couple.