Create Kamen Rider from Kaiwu

Yang Yingtian, who traveled to the new world, looked at the book of stories, the book spirit, and the dying world with a look of helplessness. In order to prevent the world from being destroyed in the future, he can only create a world line. He immediately decided to change the world to an armored world. As for the future, let's come in and see! (The names of the main characters have been changed. The early plot is similar to the original work, but there will be slight changes, so the protagonist's appearance rate is not high. Later, it may deviate from the original plot of Kaiwu. If you have any ideas, you can put forward them, and I will add them as appropriate.)