Board Thread:Questions and Answers/@comment-25951143-20150101110046/@comment-26939936-20160930215316

To olivemeister's proposal, my response is yes. Here is another extremely important piece of evidence that has yet to be negated.

Viviburn wrote: Ok, you wanted Japanese text...here it is! お兄ちゃん..... あたしジャマ...？　いない方が家族仲良くできる？The page this is said can be found here: http://www.imagebam.com/image/545187162083006 It roughly translates to "Brother....am I a hindrance? If I wasn't here, would the family get along?" Two things to note: first, we know it's Alluka since she says 'brother' instead of 'Killua'. Second, Alluka uses あたし to address herself, which is a personal pronoun used by girls and young women. Here are some links that will define it:

http://www.wordsense.eu/%E3%81%82%E3%81%9F%E3%81%97/ http://japanese.about.com/od/Grammar/a/Personal-Pronouns.htm

Note that while some personal pronouns are flexible with gender (most notably 私 and occasionally 僕, both also dependent on age), あたし is pretty strictly feminine!

Edit: Please pardon if there are any miswritten kanji on that transcript. The two important things, "お兄ちゃん" and "あたし", are 100% correct, guaranteed!