[Underworld + undercover + decisive killing + sinister + never virgin + multiple female protagonists]
Only if people are ruthless can the world be stable.
A top-secret undercover agent was entrusted by the gang boss on his deathbed to take good care of his sister-in-law.
The cold and charming sister-in-law became fierce and ruthless overnight.
It's okay to be a sister-in-law, but...
As an undercover agent, he makes money and takes care of his wife.
Occupying the black boss's villa, he led a group of younger brothers and turned the entire Dongjiang underworld upside down.
But he didn't expect that the one who lost control first...
