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.
The episode's title refers to the transactional nature of the entity known as , who resides within Alluka: 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
Once three requests are fulfilled, Alluka's appearance shifts (becoming "Nanika"), and she will grant almost any wish, regardless of its scale. It explores themes of "equivalent exchange" and the
Silva and Illumi Zoldyck view Alluka as an "it"—a dangerous tool that must be contained due to the risk her powers pose to the family.
