During the Chimera Ant crisis, the Hunter Association secretly calls upon Y/N—a classified Hunter whose existence is unknown to almost everyone. Despite his youthful appearance, Y/N possesses an unprecedented Nen ability, immense endlessly replenishing Aura, extreme regeneration, and power placing him among the Top 10 strongest Nen users in the world. Bound by a secret agreement with Netero, Y/N has remained hidden from the Hunter world for years. Now, with the Chimera Ant threat reaching an unprecedented level, Netero finally decides that it is time for the Association’s hidden Hunter to step into the battlefield.