Season 14

Ten thousand years ago, a massive battle known as the Battle Royal was fought by fifty-two demons known as the Undead, each representing a species fighting for dominance over all others. The winner was the Human Undead, known as Category Two of Hearts, giving dominion of the Earth to humanity. In the present day, archaeologists discover the sealed Undead, and accidentally set them free. Thus, a new Battle Royal begins. Having developed the Rider System based on the Joker's ability to copy sealed Undead, the organization BOARD equips two young men, who become Kamen Riders: Kenzaki Kazuma and Tachibana Sakuya fight together as Kamen Rider Blade and Kamen Rider Garren to protect humans from Undead and seal them. But who is the mysterious Chalice, a Kamen Rider also fighting the Undead whose purpose is unknown? Meanwhile, a young man struggles to free himself from the control of the sealed Undead, who are powering his own Undead-made Rider System, fighting as Kamen Rider Leangle.

1万年前、52枚のカードに封印された不死の生命体・アンデッドが何者かによって、封印を解かれて復活した。人々を襲うアンデッドを再び封印するため、人類基盤史研究所・BOARDは変身ベルトを開発。橘と剣崎はそれぞれ、仮面ライダーギャレンと仮面ライダーブレイドとして、アンデッドと戦う。

1万年前，不死的生命体“不死生物”被52张卡片所封印了。为了再次封印于现代复活的不死生物，“人类基盘史研究所（通称：BOARD）”开发了骑士系统。新人职员·剑崎一真作为假面骑士Blade，与前辈·橘朔也=假面骑士Garren一起日夜地展开着与不死生物的战斗……。橘的背叛、毁灭的组织、并且被不死生物的封印的背后潜藏着圈套。在被残酷的命运玩弄的同时，剑崎把自己的信念赋予刃中，为了所有的人类继续着战斗。