Donghyuck, also know as Haechan in the mafia world was apart of gang "NCT", lead by Taeyong. You were Taeyongs younger sister, also apart of his gang.

Despite being in the same gang, the two of you never liked each other. You were carefree, laid back, relaxed, teasing and confident while he was the complete opposite; cold, arrogant, cocky. He found you childish and didn't take you seriously at all.

One day, as you were getting ready for an assassination mission, Taeyong called you into his office. Donghyuck sat there was well, his eyes boring into yours.

"I've called you two here today because I'd like for you to go on this mission together. You two are my best fighters, I know you'll do great." Taeyong stated, looking at the twos reaction.