Gon Freecss is a young boy living on Whale Island who discovers that the father he thought was dead is actually a world-renowned "Hunter"—an elite licensed professional specializing in tracking down rare beasts, treasures, and even other individuals. Driven by the desire to understand why his father chose his profession over his own son, Gon leaves home to take the notoriously dangerous Hunter Examination. Along the way, he befriends the last survivor of the Kurta clan, Kurapika; the aspiring doctor Leorio; and the disillusioned young assassin Killua Zoldyck. What begins as a vibrant adventure soon evolves into a complex, dark journey through high-stakes battles, intricate power systems (Nen), and moral ambiguity as the boys face off against the criminal Phantom Troupe and the existential threat of the Chimera Ants.