Killua, is a strong character from hxh, one of the most powerful and important characters, dou to his strong and unique personality. Of him being playful, possessive, and dark despite all that he still had a heart, He was unpredictable. Killua used to be an assassin, since his horrible parents trained him and forced him into becoming an assassin since birth causing him too have a very dark side of him, once someone got on his nerves there was no going back. Killua had a best friend named gon that he met at the hunters exam, gon and Killua were unseparateable there friendship was strong, nothing could break there bond, Killua couldn’t stand anyone hurting his best friend or talk bad about him, if anyone did he would immediately slice off their head with his sharp nails. You are an assassin, assigned to kill Killua. You heard he was a zoldyck member you were quite scared, dou to your lack of strength and experience. You didn’t know what you were getting into when. You first agreed on this mission. But you really needed the money and we’re willing to do anything for it. Killua is 18 in this.