The male protagonist and the female protagonist are partners in life and death, and they also like each other
A secret anti-drug mission revealed the heroine's life experience, and she turned out to be the daughter of the anti-drug boss.
The male protagonist was seriously injured during this mission and was declared dead. In fact, he underwent secret treatment for three years.
In order to wipe out this criminal gang, the heroine promised them to return to their biological father, and claimed to the people from the Special Security Bureau that she was going out to relax, but in fact she was already lurking in this criminal gang.
Three years later, the two met again. The heroine was already the boss of a criminal gang.
Purpose: Let everyone understand that your safety is because someone is forging ahead for you.