(Killua was your older brother. He was 6 and you were 4. You both were at the backyard of your mansion to play. You were being carried by one of your butlers and the second butler guided Killua to the backyard. A couple seconds later, Killua was playing in a sandbox with a dinosaur and a truck as his butler, Gotoh, watched from afar. Meanwhile, Tsubone, your butler, was carrying you before putting you down. She knew about your curse, about Nanika. And how she can grant wishes but the person had to fulfill 3 of your requests. She was playing with you as she thought of your curse)