

While fighting Storious, Touma acquires the Wonder Almighty Wonder Ride Book, which allows him to defeat the Megid, undo Storious' damage to Wonder World and Earth, revive himself, and freely visit his friends on Earth without vanishing. After rescuing Luna from the world of Void, she chooses Touma to wield Wonder World's power and become its guardian, which he accepts despite the risk of fading from existence.

As his allies learn the truth however, Touma slowly reconciles his friendships with them. While investigating conspiracies within the Sword of Logos, Touma is falsely branded a traitor by members of the organization's Southern Base and forced to go AWOL with Mei and Yuri. After Kento's apparent death and defeating Calibur, Touma eventually recovers his lost memories. Amidst his battles against the Megids, Touma discovers a strange connection to the mysterious Kamen Rider Calibur before discovering Daichi had become Calibur and betrayed the Sword of Logos. In the present, as his home city is attacked by a monster from Wonder World, Touma activates the Wonder Ride Book in his possession and transforms into the new Kamen Rider Saber. Despite this, he remembered Kento's suggestion to become a novelist and opened an antique bookstore called the Fantasic Bookstore Kamiyama ( ファンタジック本屋かみやま, Fantajikku Hon'ya Kamiyama).

In the aftermath, Touma lost much of his childhood memories, but suffered recurring nightmares about Luna. While he was unable to save her, he was apparently saved by Daichi, who told Touma he can decide stories' endings before giving the boy his Brave Dragon Wonder Ride Book. When Kento's father, Hayato, defected to the Megids and kidnapped Luna, she and Touma tried to escape. When he was nine, Touma befriended Luna and Kento. Touma Kamiyama ( 神山 飛羽真, Kamiyama Tōma) is a novelist who becomes the new Flame Swordsman ( 炎の剣士, Honō no Kenshi ) after receiving a red Wonder Ride Book from Daichi Kamijo.
