Li Bing, who has just been promoted from PC patrol police to CID, has just been promoted from PC patrol police to CID. In order to enrich himself, in addition to participating in various trainings in the police force, he also privately went to the martial arts hall in the evening to follow Taiji master Wu Hui to learn Tai Chi, so he met his brother Xiao Qi. Xiao Qi was friendly and enthusiastic, and even instructed Li Bing from time to time to practice with him. The two gradually became good friends and talked about everything.
| Actor | Role |
|---|---|
 Jackie Lui Chung-YinNot listed | Not listed |
 Karen Tong Bo-YueNot listed | Not listed |
 Edmond So Chi-WaiNot listed | Not listed |
 Felix Lok Ying-KwanNot listed | Not listed |
 Lee Ji-KeiNot listed | Not listed |