138 : Request X And X Wish -

This episode is often cited by fans for its shift in tone, blending the series' typical adventure with . It explores themes of "equivalent exchange" and the burden of self-interest, as well as Killua's deep, protective love for his sister despite her terrifying potential.

Alluka makes three "requests" (or "favors") of a person. These can range from innocent acts, like asking for a hug, to horrifying demands, like asking for internal organs. 138 : Request x and x Wish

The "cost" of a wish is not paid by the wisher, but by the next person who encounters Alluka. The greater the previous wish, the more difficult the subsequent requests become. If four requests are denied in a row, the person and their loved ones die—sometimes numbering in the dozens. Key Narrative Developments This episode is often cited by fans for