A/N: Hello, El Desperado here! And welcome to the prologue of my very first fic and this is a multi-crossover fanfic featuring characters from various anime, manga, light novels, doujinshi, manhwa, manhua, video games, cartoons, western comics, web-comics, web-animations, live-action films & shows and many more forms of media as well as original characters of mine. I also plan on including OCs from other fanfic authors but I'll include them on a latter date once I get proper permissions.

Originally, my initial multi-crossover fic features a fighting infested-world but sadly I lost interest with the idea, so I decided to scrapped the story and came up with something new.

And it really took a looooooooooooooooooong time before I finally came up with a proper story and it's all thanks in playing various RPG and Gacha Games.

Disclaimer: While this is an original fanfic of mine, with the exception of original ideas and OCs, I don't own anything.

(Opening Narration)

Some settings refer to not just one other dimension, one other universe or one other timeline but to a whole set of other dimensions, universes, planes of existence, realities, timelines, and the like. A collection of distinct universes exists, said universes often being interconnected in a way that allows characters to travel to and from them. It might be as a tourist who just goes to look and tries not to change anything or as a participant who goes in and interacts with the people in the other universe.

This is called the Multiverse.

The multiverse can encompass an infinite number of possible and impossible "moments", some of these linked by tidy and coherent timelines. But there may also be an equal or even greater number of incoherent, looped, knotted or unconnected timeless moments that remain unchanging for all eternity.

Timelines need not progress forward or even backward but also what appears to be sideways through disjointed and unrelated frames of reference. The multiverse may have no apparent ultimate purpose or reason for existence, other than it just is.

It seems like the multiverse will forever remain untouched and unaware from each other until a faithful day changes everything.

Out of nowhere and for whatever reasons, numerous worlds all across the multiverse found themselves under attack by an organization called the Assembly of Horrors which is a mysterious and very dangerous organization that bears powers that surpasses the Gods.

With the Assembly of Horrors sending out Sentinel-like robots all across the multiverse and began attacking various worlds, including plain of existence such as the afterlife and the realms of Gods, causing massive destructions and chaos. Each worlds tried to fight back, both heroes and villains alike, but for some reason, they all found themselves at a disadvantage as their enemies are equipped by a mysterious orb called Numenium which granted their enemies absurd amount of powers that is beyond what a God can do. And because of this, everyone, heroes and villains alike, had to abandoned their respective worlds because no matter how much they put their efforts to fight back, they can't find a way to win, so they are forced to flee to safety.

Despite their losing their worlds and various defeats from the Assembly of Horrors, everyone never lost hope, everyone knew that the Assembly of Horrors must be brought down to justice, everyone had to continue on fighting until they bring down their enemies and restore proper order.

And with that, heroes & villains and antiheroes & anti-villains alike, must work together, accordingly or forced, in order to defeat their enemies. Both sides know that they had a one common enemy and both understand that the only way to defeat them is to work together, so grudges and hostilities must be set aside, unity is needed in order to save the multiverse.

And thus, the Warriors of the Multiverse is born.

The Warriors of the Multiverse's main goal is to defeat the Assembly of Horrors in order to restore order in the multiverse and at the same time, they realize that there other worlds out there that are yet to fall in the hands of threat, so everyone must do everything to protect these worlds and if protecting is very much impossible, they should evacuate the world's inhabitants to safety.

Another important task for the Warriors of the Multiverse is to obtain Numeniums in order to go toe-to-toe against the Assembly of Horrors.

The Warriors of the Multiverse is currently being led by various leaders from different organizations, guilds, schools, nations and kingdoms but unbeknownst to a lot of people, the Warriors of the Multiverse's true leader is a mysterious figure that only a few had met and these mysterious figure is responsible for providing refugee to those affected by the lost of their worlds.

Time will tell if this mysterious figure will ever present himself to public.

Down in the present, the war between the Warriors of the Multiverse and the Assembly of Horrors rages on, and despite the latter had the advantage over the former, the Warriors of the Multiverse are not stopping until everything is restored back in the right order.

(End of Narration)

A/N: Prologue over and thank you very much for reading. Upload schedules for this story will be varied from weekly, monthly or even bi-monthly but never once a year but once I upload a chapter expect it to be loaded.

That's all I want to say for now, so please look forward for the next chapters going forward.