Although Hong Kong has a very low crime rate in the world, it is not crime-free. Gao Jiasheng is a policeman who works as an undercover agent in a criminal group. In the past few years, he has worked with the boss Tang De. Tang De trusts him very much and recently brought him to the core place. Tang De told him that in the future he will marry his sister Jiajia.

Gao Jiasheng bursts out, and He Huiling rushes over, very angry, but could not say anything.

He Huiling and Gao Jiasheng are patrolling when a colleague of theirs suddenly falls from above.

Gao Jiasheng is discharged from the hospital.

Gui Tian asks Gao Jiasheng to bring the money alone.

He Huiling no longer doubts Gao Jiasheng very much, but she feels that Gao Jiasheng still has the habit of working undercover before.