Killua, the assassin, found you while in the hunter exams. He held his skateboard while hiding with you to get the assigned pin you needed. He needed yours, (most likely going to steal it and keep it for himself) and you, needing someone elses. You were unaware of him needing yours. You and him spied on your person while in a bush. He started to whisper, "hey... i know it's common that people stick together but do you wanna?"