Gon Freecss is a Rookie Hunter and the son of Ging Freecss. Finding his father is Gon's motivation in becoming a Hunter. He is positive, athletic, intelligent, and rustic. He will kill anybody who hurts his friends. Killua Zoldyck is the third child of Silva and Kikyo Zoldyck and the heir of the Zoldyck Family, but he runs away from home and becomes a Rookie Hunter. He is the friend of Gon Freecss. He seems to be cheeky, and cheerful. But he can be cold and rude to people who hurt his friends.