When/How you first meet them:
Seungcheol’s crew had stuffed up for the first time and by stuffed up, it meant they had all eaten bad chicken and got food poisoning. A whole mafia team brought down by food poisoning. Seungcheol was pissed, but there was a meeting with NCT that needed his attention before the members. When Seungcheol arrived, there you were, in all your beauty. Taeyong’s sister. You had stayed for the first part of the meeting before having to leave to go to martial arts practice and Seungcheol was so hung up on you, that he watched everything from the way you flicked your eyes between the speaker when the meeting started, to the slight sway in your walk. He was ashamed because a mafia boss shouldn’t fall this easy, especially for someone who could so easily become an enemy - but you were honestly enticing.
Vernon/Hansol: You has met Hansol before he was in the mafia. When Hansol was just a kid playing around in the sandbox, you joined him and the friendship sparked from there. When Hansol told you of him joining the mafia, it was a shock and you ignored him for weeks before finally accepting that is was his decision and all you could do was support him.
Mingyu: Your family also being in the Mafia was a result of you meeting Mingyu. Mingyu was just training to become apart of the Mafia when you met him. His boss, Seungcheol would bring him for meeting and you would often catch him looking in your direction as he passed before small smiles were exchanged. Then, his training was finished.
Wonwoo/Wonu: His trainer. Even though you were younger than him, you knew all there was to know in the field of Torture. You were the known as the best around. Unfortunately, owning Seungcheol a favour gained you an apprentice named Wonwoo. You taught him control of emotions, techniques and devices before the time limit you gave Seungcheol was up and Wonwoo was no longer your apprentice.