The Trio of Menace of the Universe: Multiverse X Kamen Rider Decade

When other universes are in danger because of Dai-Shocker, with their new leader named Dark Decade, who awakens villains that shouldn't be awoken or exist in the Kamen Rider story. As the riders from the worlds aren't strong enough to defeat them, they need the destroyer of worlds, named Decade.

But he died while fighting Ohma Zi-O because of Dai-Shocker and Dark Decade, causing the multiverse to start collapsing. However, God decides to give Decade another chance at life. Now, Decade is reborn in a new world. But when the mysterious Wataru Kurenai informs the reborn Decade about his title as Kamen Rider Decade, the Destroyer of Worlds or the Savior of Worlds, he inherits the mission of traveling across these worlds to eliminate the anomaly in each.

Unbeknownst to him, the A.R. Kamen Rider universe merges with his world every time he finishes his mission. Eventually, the universes stop merging with his world, becoming their own worlds. But a new universe merges with him.

Will the new reborn Decade join Dai-Shocker and help Dark Decade become the Destroyer of Worlds? Or will he succeed in saving every universe and become the Savior of the world? Find out in this book!.