Kamen Rider Saber

Eight years after the battle for the Book of Omniscience, the peaceful lives of Touma, Rintaro, Mei and Kento are troubled by a mysterious new Falchion who can seemingly erase people from existence altogether.

Touma, Yuri and Mei somehow ended up in the World of Zenkaiger while the Zenkaigers, except Juran, ended up in the World of Saber. The reason for their swap is due to a man who wishes to rid the world of heroes. How does a male, teenaged artist tie into this? And why are they send into different stories with previous Kamen Riders and Super Sentai Teams?

The Book of Ruin is released along with the mysterious immortal swordsman, Bacht. Darkness overflows from the book, causing the real world and Wonder World to disappear. The Sword of Logos must challenge Bacht to stop this situation.