Kamen Rider Chaser, who died to protect mankind, lost consciousness but woke up again in another world.
Living on the street without an identity, he was taken in by the owner of "Tacco Soba" and became a clerk, and he lived an ordinary life from then on.
If Shinnosuke, Kiriko, Tsuyoshi, everyone from the Special Section, and the three mechanical mutant cadres could see his life now, they would also be happy for him, right?
——But, there is always a voice in my heart saying this:
You are the Kamen Rider who protects mankind. This world is in danger, you must protect them!
All along, he thought it was an illusion that he failed to adapt to his new life; until that day, evil demons were raging on the streets, and a group of people calling themselves "Kamen Riders" appeared in front of him. The knight who defeated the giant monster said that the world would be reshaped...
The creation bell rang, and Chase discovered that no one could remember the horrific disaster anymore, as if their memory had been tampered with by 001's needle.
However, the truth of the world soon appeared before his eyes. The woman wearing a black and white dress said to him:
"Congratulations! From today on, you are a Kamen Rider!
Wearing the Spider ID Core and hearing the "Grand Prix of Desire" from the "Game Administrator" that was completely different from his instinct, Chase thoughtfully wrote his wish on the card:
A world where there is no war or disaster and all human beings live safely.
Concept: There must be a hero in a heroic special photo shoot