Kamen Yashi, a mysterious young man, carries everything on his back, destroys everything, and is connected to Kamen Rider Decade. His journey is never-ending, and each piece of information is gathered into his story.
Ps: Some of the settings in this article are from Kamen Rider Decade. It doesn't matter if you haven't seen it. It does not affect reading, because most of them are the author giving full play to his subjective initiative, and other Kamen Riders may interfere.
Concept: Imaginary story