Kurapika
Kurapika is a member of the Kurta tribe who were massacred by the Phantom Troupe (The Spiders) 4 years prior the Hunter exam. The Kurta tribe was an isolated group of people whose eyes would turn scarlet when angered or excited. These scarlet eyes were known to be beautiful, being one of the seven most beautiful in the world. Because of this, the Kurta tribe was constantly pursued and eventually massacred. The eyes of the tribe members were all taken away during the massacre. Kurapika is so far the only known survivor with a heart bent on revenge. He strives to have his revenge against the Phantom Troupe as well as recover the eyes of his tribe members. Despite having a heart full of hatred, Kurapika is very kind and loyal towards his friends. He is an extremely intelligent person but at the same time reckless. Kurapika is from the materialization nen group and from determination, increased the power of his nen ability to the point that it was formidable against the Phantom Troupe.

Gon Freecss
Gon is the son of Gin Freecss, a legendary hunter whose current whereabouts are unknown. He never knew his father was alive, much less a hunter until he met Kaito; a hunter who was also looking for Gin. From this point on, he became determined to find his father and decided to take the Hunter exam to do so. He became friends with Killua almost instantly when they met at the Hunter exam. Gon's an innocent and naive boy who is willing to help anyone, especially his friends. He rarely ever looks at anything in a bad way. His curious and naive personality often frustrates his friends but this is also the reason why many people are attracted to him. He is also from the reinforcement nen group. He usually fights barehanded or with his fishing rod, but it is seen quite often that Gon's fist is more deadly than any weapons.

Leorio Paladiknight
Prior the hunter exam, Leorio's close friend died to a curable illness. Despite being curable, Leorio was unable to save his close friend due to his lack of money and knowledge. He aims to become a doctor. One that will help those even without the money to pay for treatment. He decides to take the hunter exam in an attempt to earn money for tuition fees and medical treatment for others. Leorio is talented at bargaining, being able to haggle shopkeepers to no end. He may at times seem brash and rude, but in the end is obviously very kind towards his friends. Leorio's nen type is currently still unknown, and it is also discovered that he did not learn nen properly the same time Gon and company did.

Killua Zoldyck
Killua is a member of the Zoldyck family, who are a family of legendary assassins. Since birth, he trained endlessly in the art of assassination. He eventually ran away from his family and profession and joined the Hunter exam. He befriended Gon almost immediately and has loyally followed his best friend since then. Killua is usually a kind-hearted and playful boy but once provoked he becomes extremely violent and bloodthirsty. This seems to be a trait he got from his father, who believes that trait would eventually make Killua return home. He is also from the transformation nen group. He constantly strives to improve his nen ability, developing many interesting techniques as time moves on.