The 2008-2009 series of Kamen Rider and the ninth installment in the Heisei Era. Across the years humanity has been menaced by the vampire-esque Fangire. As a organization of hunters tries desperately to hold the line, 2008's main hope rests in Wataru Kurenai, a violinist with some very strange habits. His father has disappeared, leaving behind his magnum opus, the Bloody Rose violin. Whenever the strings of the Bloody Rose vibrate, Wataru is called to do battle using his half-Fangire heritage and his partner bat Kivat to transform into Kamen Rider Kiva.