The only two Buranki currently on Earth that possess a beating heart are Oubu and Entei. What's more, Reoko has defeated the headless Buranki, also called the "déraciné," and obtained its heart. One man declares this a situation that cannot be overlooked, and sends several Bubuki users to Japan in order to reclaim the stolen heart. Meanwhile, as Azuma and his companions continue to ride the Buranki transport train, a man carrying a guitar shows up in front of them and forces Hiiragi to slam on the brakes. Just who is this man?

As Oubu finally achieves its complete form, Entei stands before it controlled not by Reoko, but by Zetsubi. Laughing boldly, she tells the shocked Azuma that he can't beat Entei, but Kinoa insists that they and Oubu are different from before. Zetsubi is cornered by Oubu's ferocious attack, so she takes the Russian team's Bubuki to use as Entei's limbs, and Oubu is overwhelmed again. Can Azuma and his party win this fight?

The foreign teams continue to hunt the headless déraciné Buranki, so they can take its heart and use it to awaken Buranki in their home countries. Meanwhile, Arabashiri is fighting his own battle for Reoko's sake. He has watched Reoko endure the ceaseless pain of fighting déraciné Buranki one after another with the incomplete Entei, and now his rage explodes on Azuma's mother, Migiwa.