Tsukasa finds himself wearing strange clothes with another strange card as he, Natsumi, and Yusuke find themselves attacked by the Strange Demon Robot Schwarian and his Chaps as Kamen Rider Black RX battles them, with both sides believing Tsukasa to be Joe the Haze. When the Seamoon Fangire and Scorpion Imagin suddenly appear, Tsukasa becomes Decade to help RX out against the monsters with Agito's power as Schwarian runs off. After Natsumi stops RX from attacking Decade, RX takes her words to heart and sees Tsukasa as an ally. From there, he introduces himself as Kotaro Minami and says that has been fighting the Crisis Empire. Everyone is confused at the sudden appearance of Imagin and Fangires in this A.R. World with Tsukasa reluctant to fight, once more. While Tsukasa takes pictures, after Natsumi offers him to embrace her world as his home, they confront a man named Guy who is behind the attacks. Introducing himself as Dai-Shocker's Apollo Geist, he knocks the Decadriver out of Tsuk