After his duel with Houtarou, Supana was recovering from his wounds in Fuga's laboratory. What he must do is to become his own "Kamen Rider" with his own power, without relying on the power of others . But then Gigist, the master of the black flame, attacks him. Meanwhile, the movement to expel Chemies continues unabated in the city. But some people stand up. Kajiki, Seina, and the Manabe family...!. People who have come into contact with Chemies and the alchemists cry out for help. And then Supana finally obtains a new power. Its name is "Kurogane", Valvarad Kurogane. Armor of resolve as he faces his true nature!. Now, in the silver flames, the warrior awakens once again!.
