The four of them have been known as F4 since they were in the police academy.
From the police academy F4 to the anti-drug squad.
They have never been apart for ten years.
Along the way, those who are idle become more and more serious; those who are timid become more brave; those who are good at silence are influenced by love; those who have no home find their own warmth.
But the good times didn't last long.
During a mission, four people were attacked.
After that, two of the four names on the schedule were crossed out.
Purpose: To pay tribute to anti-drug heroes. There is no quiet time, but there are people who carry the burden forward for us.