Gon and Killua's aura nodes finally open thanks to Wing's help. He teaches them how to pass through Hisoka's barrier of Nen. A few hours before midnight, Gon and Killua come back to the hallway that Hisoka is guarding. They successfully pass through and Gon challenges Hisoka to a fight. Hisoka only replies that if Gon manages to win even one match, Hisoka will accept his challenge. The two successfully register before time runs out. After registering, they are confronted by three fighters from the 200th floor, namely Gido, Sadaso, and Riehlvelt...