In the fantasy world with magic and dragons, the world is having a war between humans, demons, and demi-humans. However the Demon Lord found a way to make the Summoned Hero into his army by offer them with greater powers and their desire.
The Hero betray the Kingdom, work for Demon Lord and doing their things to people. One young man summon to the world of fantasy but he lost his memory and doesn't remember who he is and why he try to protect this world from the fake hero and demons.
The young man realize that he has power of Kamen Rider and chosen to fight the Demon army and Fake Hero as the Kamen Rider of this world. Can he save the world? Will he success to save the world or fail? Find out in this book to see more!