"n any case, on his blog, Shiina Takashi, the mangaka of Zettai Karen Children, for which the anime will start in April, says that although he only asked for a "popular young seiyuu," it was really Aya he was thinking of, and whom they ended up getting to play Kaoru. He says that her voice has "an unforgettable enchantment."
He thinks the character has to be played as a tomboy with a feminine voice, a mischievous princess in whom you can hear a future charismatic queen of the demons. And he says the director and the sponsors are pleased, too. Personally, I think this kind of subtle calculation of how a character should feel is right up Aya's alley."http://cnanews.asablo.jp/blog/2008/02/28/2670066#tb