When his grandfather became kamen rider dragon Fire he died in the story realm, therefore a new saber is born a young boy named Ken Keegan was a ordinary high school kid then, he discovered the ancient books and a device with a sword and a book called “Brave dragon” when he found them he became a hero called Kamen Rider Dragon Fire using these items he will save the world, with the help of Leo (Kamen Rider Water Lion), They will decide how the story ends.
