User blog comment:Goregutz619/HXH episode 138 discussion/@comment-5780397-20140719153432

No, it says that Milluki has asked Alluka for a new computer. Anyway, this may be because he stole the wish from someone else. I can think of three possible reasons:

-it's a Limitation;

-Alluka/Nanika does not want to endanger them, subconsciously knowing the danger posed by his power;

-He cannot do that because, if they were unable to fullfill her requests, he might die as well.