"Kamen Rider Saber" is a Japanese tokusatsu series that premiered in 2020 as part of the long-running Kamen Rider franchise. The story follows Touma Kamiyama, a young writer who transforms into Kamen Rider Saber to battle against the forces of evil known as the Megid. These creatures threaten the world by unleashing chaos through the power of books. The series features a unique theme centered around literature and storytelling, with each Rider using special Wonder Ride Books to gain powers and abilities. As Saber, Touma teams up with other Riders, including Kamen Rider Blades and Kamen Rider Espada, to protect humanity and uncover the mysteries behind the Book of Ruin.