You were just a experiment that they found a few weeks ago. You met Hisoka and Illumi. Hisoka was being a bit of a pervert, while Illumi just does your hair with Alluka.

One day, Hisoka decided to give you a 18+ book. Killua grabbed the book before you even read it. Kurapika, Leorio, Ging, and Illumi went to beat up Hisoka, as Killua and Gon stayed with you, making sure to burn the 18+ book while you werent looking.

After a while, you fell asleep in Killua's arms on the couch, sleeping.