Killua Zoldyck

Killua Zoldyck is one of the main characters of the anime/manga series Hunter × Hunter. He is Gon Freecss' best buddy and the middle kid of the Zoldyck family. Even though the two desire to be famous hunters, Killua comes from a darker background. Killua separates as the most talented member of a family of professional murderers.

Killua is introduced as a character similar to Gon because he is cheeky, cheerful, and full of malicious ideas. He is also one of the series' most intelligent characters. He is confident in his abilities while remaining humble about them.

On the other hand, his harshness and ability to murder reveal the other side of him – deadly, aggressive, and bloodthirsty. Killua has been tortured since childhood and has developed a high tolerance for poison, electricity, and pain. Killua boasts incredible movement and strength, transforming him into a killing machine that should not be overlooked.

Killua's greatest power as a Transmuter is in shifting the form of his Nen. As a result, Killua Zoldyck created a Hatsu in which he converted his aura into electricity. Years of electric shocks as a child, both as pain training and punishment from his older brother Milluki, inspired and enabled him to achieve this feat.

Anime: Hunter x Hunter

Watch here: https://www.crunchyroll.com/series/GY3VKX1MR/hunter-x-hunter