Characters:

Otto Ikoto/ a 16-year-old who attends Katsuki High. After meeting scientist and childhood friend Shikai Konogatchi, he was introduced to the Omni-Driver on his birthday.

Shikai Konogatchi/ Friend of Otto and Creator of the Omni-Driver.

Sarah Ikoto: Sister of Otto and the 2nd Kamen Rider named Kamen Rider Ikara.

Sam Ikoto/ Brother of Otto and 3rd Kamen Rider named Kamen Rider Cyclope.