Ten thousand years ago, 52 cards sealed the immortal life forms. Until the 20th century, these seals were broken and these immortal life forms revived again. In order to stop them from killing in the human world and seal them in the cards again, Torimaru of the Human Foundation History Research Institute, known as BOARD, developed a transformation belt. Tachibana Sakuya and Kenzaki Shinichi were commissioned to become Kamen Rider Garren and Kamen Rider Blade to start their heroic battle. Although Tachibana helped fight against the immortal life forms at the beginning of the story, he also took a confrontational attitude towards Kenzaki and others, but he returned to normal in the middle of the story. There is also a third Kamen Rider transformed by Aikawa Hajime in the story, named Kalis. His true form is Undead-Joker. This character who is both good and evil makes the story more rich. The last Kamen Rider who appeared was Kamen Rider Leangle transformed by Mutsuki. At first, he was controlled by the Ace of Clubs, but later he got the help of Kenzaki and others, and finally he also recovered his will and became a warrior of justice.