The innocent girl but full of mystery

She's goddess
She's smart
She's gamer queen
She have a lot of secrets
She's cold like ice
She's brutal
She's heartless
She can kill you in just one snap
Her eyes is dangerous
You can die if you see her dangerous eye
She's a Secret Agent

He's Smart
He's Brutal
He's Heartless
He don't have a mercy
He have illegal business
He's so rich
He's Mafia Boss

She's an Secret Agent she have an angelic face but her personality is like a demon she's heartless and she's cold even her family is cold and heartless people called them No Mercy/Hearless Family in the whole world,She is not just an agent because she is the so-called heartless queen agent their family is the most feared, the richest, and the most powerful in the world there are people who say that their family is the most mysterious because of so much being hidden

He's Mafia Boss he is feared in the mafia world because of the ruthless murder all those who oppose them are found dead the next day their murder is clean so the police do not know who committed the crime he has illegal activities he have connections to with high positions he is one of the richest in the world

what if their paths cross what will happen? a war or a happy ending?