Hunter x Hunter: The Last Mission

Nen is a hidden energy that flows through everyone, and those who master it gain immense power. Within Nen lies the potential for both boundless light and deep darkness. The Hunter Association exists to regulate its use. Hunters are a diverse group, each with their own goals, but all have learned to wield Nen in pursuit of wealth, power, or their personal dreams. The strongest Hunter is Isaac Netero, leader of the Hunter Association. Years ago, he imprisoned Jed, a Hunter who mastered On-the dark counterpart of Nen. Now, On users have resurfaced at the Heaven's Arena "Battle Olympia" tournament. For Netero, this is his final mission: to shield the Association and the world from a vengeful threat fueled by hatred. To succeed, he'll need every ally he can find.