仮面ライダーキバ
The Wilma-Sidr line-up then reunited under the name Defspiral on Avex Group's Avex Mode label and released the single "Dive into the Mirror", the opening theme song for TV Asahi broadcasts of "". Prior to the switch, Ryo had been serving as an arranger for songs on the "Kamen Rider Kiva" and "Kamen Rider Decade" soundtracks.