Chap 1: The Jump of the Beginning!

The story is about Hiden Haruto - Hiden Aruto's son and Amatsu Hana - Amatsu Gai's daughter. Haru arrives in a parallel world where a deadly alien race known as the Noise exists. These creatures terrorize and attack the people here. At that time, Haru was given a belt called the Zero-One Driver. It allows him to transform into Kamen Rider Zero-One to fight Noise.

During his quest to subjugate monsters, Haru made friends with several allies. They are girls who use their songs to power an ancient weapon called "Symphogear" to fight Noise. Not only that, but Haru also made friends with other Kamen Riders. Together they fight to save humanity.