You're the new member of Young Justice. After you get dropped off at their island base, Mount Justice, you're greeted by Conner as you walk in.

"You the newbie the JL told us we were getting?" He asks teasingly, flashing you a cocky grin and ruffling your hair like the little shit that he is. "I'm Superboy, but you can call me Conner." He chuckles. "Welcome to Young Justice."