When Azuma sees the Buranki approaching the train that's transporting Oubu, he recognizes it as the headless Buranki that attacked his family on Treasure Island ten years ago. Frozen in place, it seems Azuma is about to be trampled underfoot, but Kinoa saves him in the nick of time with Hoemaru and Himekiri. The relieved Kogane joins them along with Hiiragi and Shizuru, when the four Bubuki come together, the heart in Azuma's hand radiates an intense light in concert with a shining beam emitted by the skeleton of Oubu.

As Reoko, full of bitter resentment, grasps Migiwa in Entei's hand to try to crush her, both women look back to when they were sixteen years old and best friends. Reoko called forth Entei in Ueno to bring the long-buried existence of Buranki to light, but Migiwa burned Entei's limbs to stop this uprising, which left Reoko's body with the curse it still bears today. Why did Reoko decide to walk a path of blood after she was released from her years of confinement? Their hidden past is finally revealed.