So, you see all of this, "fever", of multiverse-reaction fanfictions on the RWBY community? Yeah, that one. I do follow quite a bit of them and then thought on making my own version, but choose against the idea, I don't think I could really pull the reaction part, but the multiverse one? Yes.

So I thought of this, a series of one-shots in which I'll write and share my ideas for the RWBY multiverse, most of them (if not all of them) focused on Jaune. But I don't know how often I'll update this one, but most likely it would be every so often, so sorry for that. For now, I have at least four ideas, and this is the first one:

There can be only one.

It was a lovely night on the city of Vale with, surprisingly enough, no crime whatsoever going on, and its citizens enjoyed it to it's utmost. But among them, there was a special man, peacefully eating a hamburger on a street stand.

He was a young adult that looked to be twenty years old with blond hair and blue eyes, dressed in sport shoes, jeans, a plain black hoodie. On his lower back there was a simple looking bastard sword with a golden and engraved guard on a white and trimmed with gold sheath.

Suddenly, he stopped eating as his sight went fast to someplace behind him. Without moving his gaze, he let his food down, placed some lien on the counter as he stood up and started walking, seemingly without real course. He keep walking until he entered a zone filled with warehouses, and entered one that seemed to be long abandoned.

With slow, measured steps, he explored the place until he reached an spacious room on the top floor, and stopped once he saw a older man apparently on his mid forty dressed in which one could call a "Pirate Cosplay" (a very realistic one at that) that was sitting on a wooden box, holding a scimitar on his hands.

-Welcome, my kin, you sensed my call, right?-.

-Yes, I did- answered the young man, drawing his sword.

-Perfect then- said the older man as he while standing up -there will be no interruptions here, so, let's start-.

(One week latter, same location)

-I really doubt this is a good idea, sir-.

-What do you mean, Glynda?-.

-I'm talking about miss Rose sir, while I admit that she is gifted, she is too young for Beacon-.

These two were Ozpin, headmaster of Beacon and his deputy Glynda Goodwitch, and both were just heading to the bullhead docks after dealing with an underage Huntress apprentice that had interrupted a crime.

-Maybe, but I can said that it would be better for her this way, she already is as strong as some of our weakest second year students, can you really say that she could be better on Signal for another two years instead of Beacon?-.

-...No Sir, I can't say that- conceded the woman with a sigh after a pause. They walked in silence for a bit more before she asked -Sir, Why are we walking like this? We could have called a Bullhead to the Police station-.

-We could, but I had this strange feeling for the last week, as if there is something happening around here...- he explained as he suddenly came to a stop, looking at one of the closest warehouse -...I hear steel clashing, there is a fight here-.

The blond woman couldn't hear anything but nodded and followed her boss as he moved to the seemingly abandoned building, both holding their weapons tightly.

In completely silence both hunters explored the place, following the increasing sound of steel clashing, reaching the top floor and stopping in shock.

Two mens, one barely being an adult, were fighting at a staggering speed, surrounded with the pieces of cut steel, wood and concrete of anything that went between them, their swords being nothing but silver flashes in a show of technique and speed that let both of them without words, specially in Ozpin's case.

It wasn't just a fight among huntsmen, it was something that went far beyond that.

When huntsmen, or fighters at that level of skill, fought it was literally something to behold, specially with all the flashing moves that they tend to do, with flips and spins and unnecessary jumps or flourishing of their weapons. It was a style of fighting that was universal adopted because it was awe inspiring, filling the civilians and allies with wonder and hope, and the enemies with what fear and intimidation they could.

But this? There was no jumps or back flips without a reason, no spins whatsoever to show proficiency nor to mock the foe, there was only one cold objective on their fighting style: to kill the man in front of them.

It was something that Ozpin haven't watched in a long time, it was how the people of the first age (of times long before the Two Brothers whipped all the life on Remnant) fought. And while there was some surviving schools that taught that kind of fighting, the sheer skill that both showed was just impossible for someone so young, specially, but not only, the youngest one.

Finally, Glynda reacted and raised her weapon, drawing air for mighty yell that would stop the fight.

It was too late.

One slash, and the scimitar went flying, going through a concrete wall up until the guard.

A second slash, this time to the older man thorax, an a white aura tinted with the rainbow's colors flashed before breaking apart, the sound of that shaking the two spectators like never before, as if that was something meant to be impossible.

A third and final slash, and the man's head went flying, crashing in some wooden boxes with a sickening sound.

Glynda forced her eyes shut for but a moment, accepting what fault fell on herself for not stopping the fight earlier.

Ozpin just watched with a chill going through his spine, feeling that there was something supernatural going to happen.

Then, as the young man sheathed his sword, electricity surged through the beheaded body, traveling through the floor as the body started to float in the air.

The blond man raised both of his arms and closed his eyes in preparation.

Then, it happened: a wind come from seemingly nowhere, wildly moving the lightest things on the place, and the electricity system seemed to go crazy as the bulbs still working all but burst in flashes of fire and electricity, the wires on the ceiling and walls ignited on fire.

The young man groaned a bit in what seemed to be pain and raised a bit from the floor as the electricity on the place and the body flight towards him, entering his being.

Then, without warning, it all come to an end, and the youngest there fell to his knee, panting a little.

He then raised to his full height and turned to leave, freezing when he spotted the two newcomers, first in confusion, and then, once he focused on Ozpin, in shock and a bit of fury.

-Another one, did you come to claim the head of the winner?- the "youth" asked in frustration as he draw his sword once again -but let this be clear, my kin, while I am tired, I will no fall, not now, not ever-.

As the hunters slowly recover their bearings, the swordsman pointed at the headmaster with his sword.

-There can only be one, and that one, would be me-.

End chapter.

In this case, it was a crossover with "Highlander". So? What do you think?

For my part, I feel that this one can be a series of one-shots, maybe a full story if I push it, but right now I can't see it as one. The same goes for other two ideas that I have, and there are two more that actually could be actual fanfics, but I'm not sure when I could start really writing those two, so, for now I'll just write the intro/one-shot of those… maybe in a few weeks.

Well, that's all, I hope you enjoyed this one.

See ya and good luck.