Identical until Tsukasa finds himself back in the World of the Rider War, confronted by seven of the other Heisei Kamen Riders. With Narutaki overseeing it, the Rider War commences as the nine Riders face Decade, lasers beginning to fire around them, and Diend suddenly runs up and fires the Diendriver at Decade at point blank range. Kiva-la then bites Yusuke to revive him, but by turning him into a black-eyed Kamen Rider Kuuga Ultimate Form. Soon, Tsukasa finds himself back in the World of the Rider War, confronted by seven of the nine other Heisei Kamen Riders, Kenzaki then stepping forward and becoming Blade King Form Tsukasa transforms. Tsukasa is suddenly transported to the dimension where he had spoken with Wataru Kurenai, who becomes Kamen Rider Kiva after he told Tsukasa that his true mission was to defeat the eight A.R. With the battle over, Natsumi soon recognizes that she is in the exact place where her dream takes place as Kiva and Hibiki fade away with the Nine Worlds destroyed, with only Yusuke surviving. After Yusuke gets injured protecting him, Decade uses Diend's Final Attack Ride card to kill Super Apollogeist. With Kiva and Hibiki joining the fight, the Riders take out the monsters. After promising the world to Daiki if he dies, Tsukasa arrives to stop Guy as he is about to consume Natsumi's life energy, fighting both Super Apollogeist and the monsters with aid from Kuuga and Diend. The next day, Tsukasa finds Super Apollogeist's base as he meets Daiki who warns about the trap arranged for him.

Meanwhile, Super Apollogeist resurrects the Beetle Fangire, Paradoxa Undead, Tiger Orphnoch, Taurus Ballista, Alligator Imagin, and the Phylloxera Worm. Kuuga gets Tsukasa to run off so he can save Natsumi while he holds Kiva and Hibiki off, though briefly torn by his loyalties. Following Kiva-la, Tsukasa is attacked by Wataru and Asumu (Decade), whom Kenzaki recruited so they can save their worlds, after he refuses to leave. After returning to the Hikari Studio, Tsukasa is recuperating while learning that all of his photos are starting to vanish as a result of the worlds' fusion Eijiro gives him hope with a photo of Natsumi and tells him not to give up.

Kazuma Kenzaki appears, saying that Tsukasa's existence is the real cause of the worlds blending before confronting him as Kamen Rider Blade in King Form in order to force him to leave the world at once with Asumu (Decade) keeping Yusuke and Wataru from interfering as Decade is easily defeated. But a new Kamen Rider Blade has appeared, Kazuma Kenzaki, and he says that those who ally with Decade will disappear because of it.Īfter fighting off the Riders, Super Apollogeist takes Natsumi to be his new bride as he flees. The episode ends with Decade using Ryuki's powers to take on the Makamou.As Blade, Kiva, and Hibiki's Worlds continue to merge, Super Apollogeist has captured Natsumi, sending a challenge to Decade. But once Diend reveals his intentions to steal both scrolls, he summons Momotaros who attacks the Oni Kamen Riders until Gyuki storms in and overwhelms the Oni. With them representing the two Oni schools, Decade and Diend do battle. While this occurs, the Ibuki School and Tsukasa receive a challenge from Zanki's School and Daiki with the scrolls on the line. When Kuuga is nearly killed, Hibiki assumes his Oni form to destroy the Tengu before he suddenly transforms into the monstrous Gyuki. At the same time, Natsumi encounters Narutaki as he reveals Tsukasa's actions actually doomed the worlds rather than saved them. Returning to find Hibiki and Asumu (Decade) attacked by a Tengu, Kuuga attempts to battle the Makamou. Like Tsukasa, Daiki learns of the three scrolls of the Oni classes, and he convinces Asumu (Decade) to become Hibiki's pupil again, before taking his leave to Zanki's dojo where he offers a proposition. Meanwhile, after failing to rob Hibiki as he takes his leave, Daiki is forced into becoming Asumu (Decade)'s mentor. Tsukasa visits Ibuki's school afterwads and talks with Ibuki and Akira about three special scrolls. But when the last Bakeneko escapes them, Decade destroys it with the two groups as witness. Meanwhile, Zanki slays a band of Bakeneko as Ibuki arrives to take them out as well. Upon seeing Tsukasa, Hibiki, who is shirking off from his duties as an Oni, believes him to be the legendary Ongekidō Grand Master. On learning he is Hibiki's pupil, Tsukasa has Asumu (Decade) bring him to his mentor.

An Oni in training named Asumu (Decade) battles the monster until Decade uses Kamen Rider Kabuto's powers to destroy it. Arriving in the last world, the World of Hibiki, Tsukasa and company begin the search for Kamen Rider Hibiki when they are ambushed by the Makamou, Kappa.

Kamen rider decade ep 6