Technique X Registration X Combat Begins

Gon and Killua are able to make it past Hisoka's Ren and enter the fights on the 200th floor of Heavens Arena. Gon immediately wants to test his new powers and fights against a man who uses his Nen and toy taps as weapons. He initially beats up Gon, but Gon learns to use his Zetsu to sense the tops and avoid them.

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S01E40 - Two Months X Rest X With Nen Restrict Nen