Hong Kong Film: Refusing to Be an Undercover Agent at the Beginning

Li Ze travels to the world of Hong Kong movies, and the binding training will strengthen the system.
I thought I could graduate with a silver whistle and become a majestic police officer.
Unexpectedly, when he was about to graduate, Huang Zhicheng asked him to be an undercover agent.
"Sorry, sir, I refuse to be undercover!"
Armed with the system and familiar with the plot, Li Ze's goal was to be the first brother in the police circle, and he immediately refused to be an undercover agent.
Unexpectedly, it angered Huang Zhicheng and the police, and sent him to the border police station.
Li Ze doesn't care about this at all. With the advantage of knowing the plot, he started to rise from the border police station and became a police boss step by step!