The sequel of "You Good Ye" continues the story of Cousin Zheng Shuonan successfully solving a case in Hong Kong and returning to the mainland, where she is highly praised and assigned to train public security officers. Shuonan uses her experience gained in Hong Kong to make the public security team more advanced and modernized. However, during training, Zheng's consistent self-style, along with the sporadic foreign language skills she just learned (English), Asheng's occasionally functional supernatural abilities, and A Hu's qigong confuse the trainees.
Meanwhile, Uncle Wu brings his nephew, A Xiong, back to the mainland for a family visit. Upon arrival, Uncle Wu mistakenly recognizes someone as his mother, leading to a series of jokes. He then engages in mysterious underground activities. A Xiong encounters a murder case at the hotel. The conflict between Zheng's rigid style and Xiong's carefree attitude eventually leads to tension, resolved only when Uncle Wu intervenes. Zheng finally learns Xiong's identity after he faces an assassination attempt and is arranged to receive 24-hour protection at Zheng's home. Zheng's peaceful life is disrupted by this strange opposite sex.
One night, Xiong sleepwalks and kisses Zheng, making her delighted that her precious chastity might be lost. Later, due to impatience, Xiong leaves a message and returns to Hong Kong. Zheng reports to her superior and is again dispatched to Hong Kong to capture the murderer, leading to a series of continuous jokes. On one hand, Zheng risks her life chasing the criminals; on the other hand, she tosses and turns over the so-called loss of her chastity. Ultimately, whether to openly express love or vow to preserve self-respect troubles Cousin Zheng greatly.