Leorio

Leorio Paradinight is one of Gon's closest friends in Hunter X Hunter and becomes a licensed Hunter while studying medicine. He initially claims to seek money but wants wealth mainly to provide medical care to people who cannot afford it.

Leorio Paradinight's path toward medicine

Loud, practical, and quick-tempered, Leorio often acts as the group's responsible adult despite comic behavior. His anger is strongest when friends are exploited or endangered.

Emission Nen and fierce loyalty to his friends

Leorio develops Emission Nen and can project a punch across distance, though his primary path remains medicine rather than combat. His friendships with Gon, Killua, and Kurapika and his confrontation with Ging show his loyalty and moral directness.