Anime Crossover: The Heavens on Screen, Starting with Mebius

A mysterious heavenly book suddenly descends upon countless parallel worlds, including Naruto, Detective Conan, and Bleach. The beings of all worlds are forcibly gathered to watch the screen. The book unlocks the archives of the Ultraman universe and shows the entire battle in which the male lead, Hibino Mirai, transforms into Mebius and fights the space monster Dinozaur to the death. He slays the colossal beast with the Mebium Ray, but the city is reduced to ruins, and he fails to protect his companions and home. After being confronted with Ryu Aihara's anguished questions, countless beings across the dimensions begin to reconsider what it truly means to protect others.