Entrusted with the powers of the Sword of Flames, Touma Kamiyama has saved the city from a dreadful incident! But the mysteries surrounding the sword, the books, and this strange new world only deepened! Soon, Rintaro Shindo appears before Touma, acting as a swordsman from the Sword of Logos organization, who have been protecting these "books imbued with power" since ancient times! After taking him to the Northern Base of their organization, he starts to reveal some unbelievable facts to Touma!
聖剣・火炎剣烈火を手にし、異変から街を救った飛羽真だったが、剣と本、不思議な世界など謎が深まるばかりだった。そんな飛羽真の前に現れたのは、古より“力を持つ本”（ワンダーライドブック）を守ってきた組織・ソード・オブ・ロゴスの剣士・新堂倫太郎だった。彼に導かれて訪れた組織の本部・ノーザンベースで飛羽真は驚くべき事実を知る。
