Quick answer — Ayano Niina voices Rio Kaneko in Paradise of Innocence, Kanako Watanabe in Star Driver, Yukari Kamioka in Otoboku: Maidens are Falling for Me and 1 more characters.
Ayano Niina voices Rio Kaneko (Paradise of Innocence), Kanako Watanabe (Star Driver), Yukari Kamioka (Otoboku: Maidens are Falling for Me), Lisette Weltall (11eyes).
Rio Kaneko is voiced in Japanese by Ayano Niina.
