You're Killua's twin sister, so you're 12 years old

You had just joined the Phantom Troupe, mostly to get away from your family, especially your mother, Kikyo, and your oldest brother, Illumi. You had enough of Kikyo and Illumi telling you that you'd never have any friends, all of your friends would betray you or you would betray them, etc. (pretty much the same things Illumi would tell Killua). You finally left and joined the Phantom Troupe. You became close with certain members, such as Shalnark and Machi. You heard the leader of the Phantom Troupe, Chrollo, call your name. When you walked outside, the first person you saw was Pakunoda. She told you that there was a new member. Chrollo, Shalnark, Machi, Feitan, Pakunoda, and Uvogin were standing outside, and with them was...Illumi