The Kamen Rider Has Arrived! I Am Killbus!

A veteran Kamen Rider fanatic transmigrated into the Build world and spent ten years becoming the strongest person below Ohma Zi-O.

Bored, he "claimed" the treasures of the entire Kamen Rider world, then returned to the world he'd left behind.

The world coordinates were right, and the people he knew were all there...

But what the heck was this about Kamen Riders appearing all over the world?!

Gurongi, Worms, Zodiarts, Undead, monsters from every Kamen Rider tokusatsu series, and their corresponding Kamen Riders were filling the entire world!!

This was even more chaotic than a suit-actor showdown!!

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.