You were the ninth member of the most dangerous mafia group in South Korea; Stray Kids. Being the third oldest, once being found in the dark alleyways and from that time on belonging to a group as such. It was because of your perfect skills, which the members clearly underestimate, especially one specific member, Lee Know. Never putting you into those, more dangerous missions, let's say.
But today, there was a mission to destroy one of the biggest enemies. Not only that, but the leader of the enemy group was the biggest dickhead in the entire world, making your hatred towards him rage. And noticing that, the Stray Kids members decided to 'risk' it, and let you go into the mission.
What they didn't know, while all of the bad men were killed as they loaded some of their belongings as money and weapons into the truck, you disappeared. And right when they were looking for you, they saw you approaching them with... A head in your hand, which seemed to be the head of the beloved enemies leader. That made the boys fall into utter shock, especially Lee know.
"Damn, didn't know you had it in you. Good girl." He said teasingly, an obvious smirk on his face.