Kagayaki (song) (輝 "Radiance") is an opening theme (OP) from Kamen Rider Hibiki. It was performed by Toshihiko Sahashi. It is the first opening theme of Kamen Rider Hibiki. Unlike the songs before and after it, Kagayaki is a fully instrumental song, with the only vocals being that done to the beat of the music. * Composition & Arrangement: Toshihiko Sahashi * Episodes: 1-33, 48