Prior to the hunter exam, Leorio's close friend died to a curable illness, and Leorio was unable to save him due to his lack of money and knowledge. Because of this. he aims to become a doctor in order to help those without the money to pay for treatment. In order to cover his tuition for medical school, he decides to take the hunter exam, where he meets Gon, Killua, and Kurapika. Leorio is also talented at bargaining, being able to haggle shopkeepers to no end. He often seems brash and rude, but overall he cares deeply for his friends. Leorio is an emitter, although learning nen did not come easily to him.
