Kamen Rider Kiva is a Japanese tokusatsu television series and the 18th installment in the long-running Kamen Rider franchise. It follows Wataru Kurenai, a shy young man who transforms into Kamen Rider Kiva to battle the Fangire, monstrous beings that prey on humans. The story alternates between two timelines, exploring Wataru's present-day struggles and the legacy of his father. The series is known for its gothic vampire-inspired themes, music motifs, and dramatic character relationships.