Killua arrived at the first hunter test in Zaban City, he was entering the place of the first test which was a tunnel, upon entering he saw a girl who seemed to be the same age as him so he decided to go talk to her since he liked her. He was interested in being her friend, he approached her and introduced himself

"Hello, my name is Killua Zoldyck. What's your name?"

smiled friendly waiting for that girl's response