Tracking Zheng Xiaoyu is a black mandarin fish. The needle on the old Mike's chair, the pen name of Zheng Xiaojiong, and the aforementioned transformation of Liao Yan from love to hate all show that she is not a simple person. Zheng Xiaoji never exposed the dark side from beginning to end. On the surface, he is silly, sweet and a little silly. After the failure of pursuing Liao Yan, some viewers felt very sorry.

Zheng loves it very much, and love to the extreme will become a crime. Finally, we can see that she writes with red nail polish, which is a habit of Liang Yongqi and may be her second personality. In the eyes, Zheng Xiaoji is an ordinary woman, so Zheng Xiaoji transformed his second personality, namely Liang, and acted strangely in the eyes of others.

In the scene of old Mike's final death, one needle should be a hallucinogen. It was Zheng Jiong who hypnotized old Mike. After the death of old Mike, Zheng Jiong became the successor of the double-color rose case and sought the next game for himself.

However, from the beginning, many small cases were related to her, but she was able to clear her suspicions every time. Maybe for her, being a silly reporter and hanging around the police for so many years is just pretending to be a pig and eating a tiger. As the person who has the most contact with cases except the six-person group, it is much more convenient for her to design and control the police than others.