Hunter X Hunter, Nen x and x Nen

Gon and Killua arrive at Heavens Area and advance quickly, meeting Zushi.

As Wing explains the four key principles of Nen to the boys, Killua believes they aren't being told the whole story.

Wing helps open Gon and Killua's aura nodes so they can pass through the barrier.

Facing Gido in a Heavens Arena match, Gon uses Ten to protect himself.

A month after Gon is seriously injured, a confident Kastro is about to fight the unflappable Hisoka in Heavens Arena.

Kastro's Nen double puts Hisoka at a disadvantage and he loses both of his arms in the fight.

Gon, now recovered, continues his Nen training; Zushi gets kidnapped; Killua fights Sadaso.

In a fight against Gido, Gon withstands his attacks and overwhelms him, which impresses Hisoka.

Gon finally gets his fight with Hisoka.

Gon successfully lands a punch as the match with Hisoka reaches its conclusion.

Gon and Killua go to Whale Island, where Mito and her grandmother reveal Ging's past.

Spurred on by Gon's father's message, Gon and Killua plan to go to Yorknew City.