In the world of Remnant which is different from the original gives birth to a new age, an age of new superheroes rising up along with villains. See each of the adventures as every remarkable hero goes on, facing morales, teaming up, fighting bad guys, and saving people. Welcome to the RMU.

Azur Lane lost their Commander, and now the new one must lead the naval force to defeat the Sirens and along with other enemies. Throughout the world journey, he and the girls must face adventures, battles, and challenges as they struggle to win this war and ensure humanity's survival.

The cast of RWBY were sent by a mysterious being who works with a unknown boss. The being plans to send them to a new, empty realm where they get to watch alternate versions themselves from different universes. They will watch movies, episodes, video clips and more. What will they see? Will they learn about these lessons? Or enjoy their time watching these different realities?