Her name is japanese, not english. Seriously guys, I don't know why some people have to have such a restricted mind to even realize there are other languages in the world that aren't english.

The "U" letter in japanese has practically only one kind of spelling (sometimes more or less intensity can be given to it), and that definitely does not include it being spelled like "you". I prefer it that way...spelling you-ta-da when we know she doesn't have "Yu" in her name is just plain weird.
