For fans, watching Paradise Lost alongside the series enriches the experience—it shows just how fragile the TV show’s peace truly was.

Takumi Inui, the original Kamen Rider Faiz, was presumed dead during a massive attack by Smart Brain’s Riotroopers. He is later found living as a cobbler named "Takeshi," having lost his memories of being a Rider. The Emperor Belts: Psyga and Orga

The movie introduces two "Emperor Belts"—new, high-powered Rider gears designed to enforce Smart Brain's rule.

The antagonist, Kyoji Murakami, genuinely believes Orphnochs are the next step in evolution. He offers a chilling, logical argument: humanity is doomed by its own biology (the "Orphnoch gene" will eventually awaken in all humans). His "utopia" is built on the graveyard of the old world, forcing the viewer to question what salvation really means.

Paradise Lost earns its name (a reference to John Milton’s epic poem about the Fall of Man) by exploring what happens when the hero’s typical victory is impossible.

Takumi is an Orphnoch himself (the Wolf Orphnoch), a fact that torments him. In this world, his dual nature feels like a curse. He is neither fully human nor fully monster, fighting for a humanity that fears him. The film strips away his usual optimism, leaving a weary, reluctant warrior.

The story follows Takumi Inui (Kamen Rider Faiz) and his friends from the TV series—Mari Sonoda, Keitaro Kikuchi, and Yuji Kiba (Kamen Rider Kaixa)—now members of a small human resistance. Mari is captured and scheduled for "Purification," a process that forcibly turns humans into Orphnochs. To save her, the resistance must find the "Emperor's Belt," a rumored new Faiz Gear. Meanwhile, the Orphnoch leadership, led by the ruthless Kyoji Murakami (the Lion Orphnoch), plans to use the "Skyfall" program to exterminate all remaining humans, forcing a final, desperate battle.