User blog comment:Martialmaniac/Enough with Alluka!/@comment-10528819-20150220201831/@comment-10528819-20150221004557

The matter that Alluka is rather feminine even when not beeing Nanika will only bring us back to your original point that how s/he feels will not change its gender, that I completly agree with. Besides that I think Killua's mother is blind, I thought she could "see" by other ways, after all she is a nen-expert professional assassin