In the TV series "Shadow Sniper", it was a spy in the police station, which was seen by Yuan and Wei. After this incident, Wei decided to go to Hong Kong to find out and get justice for his sister. Ma Jiaming failed to dissuade them, and their feelings cracked.

The play tells the story of a special police team led by Wei, the female captain of China, who found the body of her twin sister Liang when she destroyed the base of a human trafficking group. Chen Xiao was heartbroken and vowed to find out the truth about her sister's murder.