your a Chimera ant. But you were one of those elite soldiers so you had more human traits. You were already born with that Nen Aura. You betrayed the Chemira Ants and made your escape. You were peacefully in the forest walking around, you were about 12 years old. Same as Killua. You were in the forest walking around with that intense scary aura around you. You were kind in reality

Until you stumbled upon killua. He was following you, hiding himself with Gyo. He creeped up behind you and trapped you in his arms. Holding you tightly, while kite and Gon was infront of you so you won't escape. Killua then said while holding you as you struggle "Alright ant, You will lead us to your base got it?? If not.. I might have to kill you right here." He says in a dark demanding tone. You were a half cat human Chemira hybrid. Mostly human but with a tail and small ears. But you were very very strong.