Kamen Rider: Historia

50 Years had passed since the arrival of Spawns; monsters from a rift that had opened between the ocean of Japan and China. The opening of the rifts caused chaos until the Yamato Heavy Industry produced a combat system to fight off the monsters, they called it "Rider System". The Rider System proves effective in combating the Spawns and for the next year, they are able to keep them in check. Kamishiro Kiyomi, also known as the Oni of Wisteria Academy had stumbled upon a mysterious woman that granted the power of Kamen Rider to this student.