Kamen Rider: The Rider Alliance

At the turn of the century, demons descended upon the world, their iron hooves crushing bones and their claws dripping with blood.

To resist these murderous fiends, humanity forged its own armor, naming the warriors Kamen Riders. They formed an alliance to repel the enemy and defend their lands.

This organization, bringing together the finest fighters and bearing all of humanity's hopes, was called the Riders' Alliance.

After twenty years of bloody fighting, countless fallen heroes built an iron wall with their own flesh and blood, keeping the monsters beyond the steel barriers of the war zone. At last, the enemy seemed to lower its banners, and peace appeared to return to the world.

Twenty years later, an amnesiac young man joined the organization. He did not know who he was, yet he unexpectedly matched with a Kamen Rider System that had been kept in storage for over a decade.

He had no idea how many secrets were buried within him, how many trials he had endured, how many people's hopes rested on him, or how cruel a conspiracy lay hidden beneath it all.

The battle dragged on, and the secrets were revealed one by one.

Back then, no one could have imagined that the undercurrents would one day become a raging tide and swallow this carefully maintained peace whole.

Beneath the Alliance, things may be far less harmonious than the world believes.