When Natsumi realizes that this is the world from her nightmares, she becomes wary for Tsukasa's well-being. Finding him in a tuxedo and feeling that this is the final chapter to their journey, they witness Wataru and Kazuma leading their respective Rider/monster groups against each other. After Rising Ixa and Leangle are killed off in the fight, Tsukasa makes his way to Wataru as he grieves over Ixa's death. Meeting the Fangire Queen Yuki, they learn from Wataru that the Riders are fighting each other to maintain the existence of their worlds. Returning to Hikari Studio after refusing to take sides, Natsumi reveals her dreams as Narutaki appears and reveals it to be the work of Apollo Geist and asks Tsukasa to stop Dai-Shocker. Tsukasa and Yuusuke attempt to set up peace between Wataru and Kazuma so they can stop Dai-Shocker together, but the two are too focused on protecting their worlds to listen. While this occurs, Natsumi finds the young riders of the World of Hibiki being overpow