Empty In Remnant

Disclaimer: I do not own Kingdom Hearts, RWBY, or any other works associated with them.

Yo, this is Kanimize. This right here is a xover between KH and RWBY featuring Kingdom Heart's own Vanitas. This is gonna be fun to write, I think.

Chapter 1: Ten Years Ago

Emerald Forest. It is a forest filled with Grimm, creatures of darkness with no souls to call their own. It is located in the kingdom of Vale in relative proximity to Beacon Academy, where future generations of Huntsman and Huntresses are trained to combat these creatures. Though the Emerald Forest was situated nearby, it's location and relative danger made it convenient as a place to test potential new students before they come to Beacon Academy itself.

However, something strange occurred. For the past few weeks, there have been no sightings of Grimm in the forest at all. Despite the numerous cameras placed within the forest, there have been no sightings of Grimm, despite the fact that the forest was supposed to be filled with them. There have been theories that are going around attempting to explain the anomaly. Each one stranger than the last. Finally, in response, the headmaster of Beacon Academy, Ozpin, ordered an investigation, sending in a team to personally investigate.

A team was sent in, named GRBY, and though each of the members started off fine, they all ended up back in the academy's medical ward in tatters the very next day. One of the member, Redd, who was only barely conscious enough to even speak told Ozpin what they had saw in the forest.

The Grimm were congregating to a location deep within the woods, far away from any cameras. They've theorized that the Grimm, who use negative emotions to track down prey, are being attracted to someone deep within the forest. When they've finally reached the location, they found an unusual sight.

Upon stumbling the source of the anomaly, they found a mysterious purple glowing orb floating in the air with a crest emblem on it that resembled the letter S. They've also found that a massive amount of Grimm had congregated to it.

Most of the team were ready to go back and report to the headmaster on what they saw but the leader of their team, Greene, held them back and ordered them to hide in a nearby bush and see if anything happened instead.

When one of the Grimm approached the orb, an individual wearing a black and white bodysuit with black mask with a strange insignia on it that vaguely resembles a heart appeared from the orb. It had a body type that resembles that a of male teenaged humanoid. Upon landing on the ground, he immediately took on a battle stance that was unrecognizable to any of them. He held a strange weapon with the same monochrome coloration as his outfit that somehow resembles a key.

Multiple types of Grimm began to rush him. The Beowolves launched themselves at the figure with their claws outwards, the King Taijitus lunge at him to take a bite, and a Nevermore began dive bombing.

Upon seeing the extremely aggressive actions being taken by the Grimm, Redd's team began moving in to help only to get told by their leader once again to wait and see.

The unknown figure took actions against the Grimm.

When the Beowolves got close to almost strike him, he immediately jumped backwards, avoiding the claw swipes, and quickly swung his weapon at their general location, unleashing a crescent wave of energy that ending them. When the Grimm that resembled a snake with two heads attacked, the monochrome figure counter attacked by swinging his weapon at the neck when they got close, instantly cutting off their heads. When a Nevermore began dive bombing him, just at the moment of impact, the mysterious figure disappeared from the ground and then reappeared on top of the giant bird like Grimm's back. The black and white clad figure then stabbed his weapon into the Grimm's back, causing the avian to shriek in response. This continued until it finally died.

This display of power and prowess amazed Redd and the rest of his team, but what had happened next astonished all of them.

Before the bodies of the creature of Grimm could disappear from existence, the orb behind the mysterious figure began to quickly absorb them. As it absorbed them, the figure's aura, colored black, began to manifest as the body of the creatures began to fade out from existence. When the deed was finished, the masked man had changed, both in appearance and disposition.

The figure's left hand was now manifesting a dark blue energy, crackling as though it was channeling electricity. And no longer was he simply reacting and responding to the Grimm's attacks. Now it was taking a proactive approach to exterminating them.

The Grimm didn't even have to time to react.

The figure began rushing at the horde of Grimm before him at a break neck pace and began felling each creature with a single hit, annihilating them instantly and absorbing their energy in the process. Despite the advantages in numbers, the Grimm were outmatched and out-powered by this mysterious monochrome man. This, combined with the Grimm's natural high aggressiveness and lacking intelligence needed to comprehend the concept of a strategic retreat, caused them all to be quickly wiped out.

It was at the very end, when the last current Grimm in the forest was slain, that the team decided to hightail it out of there. Blue, however, in the process of moving, accidentally stepped on a stick and broke it, creating a cracking sound that the team had hoped that the mysterious figure didn't hear.

Unfortunately, that wasn't the case. The monochrome figure had detected their presence and suddenly appeared in front of them.

What happened next? The team was brutally beaten down into unconsciousness. Why they didn't die, Redd had no idea. He and another team mate, Yellow, managed to regain consciousness and found that the unknown figure had disappeared. Not wanting to risk another encounter, the two quickly dragged their two team mates out of the woods and back to the academy. After arriving, Yellow, having exhausted herself, fell back to unconsciousness.

Ozpin, after hearing of their story, quickly made plans to go to the forest himself along with a select few.

After organizing a personal team consisting of some of the more experienced hunters and debriefing them, Ozpin, along with Glynda Goodwitch, Peter Port, and Bartholomew Oobleck, traversed through the forest during the day. While they're walking, they began to converse.

"So, Oobleck, what do you think of our chances?" asked Peter in a jolly tone.

Wielding a Blunderbuss combined with an axe, Peter Port is a huge man with a huge pride. Frequently seen wearing formal clothing, he gives the impression of a well-mannered individual, if slightly overweight. This, however, hides the fact that he is a very self-absorbed individual. Something made apparent every time he opens his mouth to boast. Though he may have his moments of humility, those moments are far and rare. Despite this, he is a well-meaning man and a competent huntsman capable of working with others.

"It's hard to say," Oobleck responded. "We have the advantage in numbers, but so did the Grimm. Together, we have far more experience than the last team that was sent in, but from what that lad said, it may not even matter."

Bartholomew Oobleck, a huntsman with green hair that doubles as an intellectual. He's well known for his eccentric behavior and sometimes hyperactive mouth. Though more of an explorer than a fighter as his attire, a stereotypical explorer garb can attest to, Oobleck nonetheless is a capable combatant. He wields a weapon that can morph between a fire-shooting melee weapon that can light things on fire with each hit and...a thermos.

"Oh, don't be like that, Oobleck," Peter said. "I'm sure that whatever is ahead of us, I'll be able to handle. After all, I have singlehandedly captured a Beowolf alive!"

"Yes, I'm sure that empty cage of yours is impressive, Peter, but could you please keep it down?" Glynda interrupted.

Glynda Goodwitch, blond with green eyes, is a blunt and critical, cool and business-like woman. Those four terms are words that best describe her. She can quite stern and judgmental of others, especially if she gets the wrong impression of someone. She wields a riding crop, along with a variety of dust, that enables her to manipulate objects that she can use as projectiles and can even affect people, depending on the type of dust used.

"I swear to you that that cage had a live Beowolf in it! I'm didn't know that Grimm could die off and disappear when in captivity, but I swear, I'm telling the truth!" Peter exclaimed.

"I'm sure you are," She said somewhat sardonically. "But please, keep it down. We're almost there. Is that right?" she directed the question to Ozpin, the leader of the group.

Ozpin, a man that is never seen without his signature green scarf and black cane. He has grey hair. Though stoic at times, he is a affable person, capable of getting along with the most volatile of people and getting them with others with little to no issue.

"Yes, of course," He responded. "That is if the coordinates are correct, however. If it is not, then I'm afraid that we may be wandering the forest for a very long time."

"Then it's a good thing I've prepared a camping set just in case." Oobleck said, bringing attention to his backpack that is filled to the brim with supplies needed to survive the outdoors.

"Yes it is," he said. "It's always a good idea to prepare just in case."

"I gotta ask something, though." Peter said. "How come we're going to destroy the thing that's been destroying the Grimm? Doesn't that seem counter-productive since we're hunters and all?"

"Don't question the headmaster, Peter," Goodwitch interjected. "I'm sure that-"

Ozpin raised his hand, indicating to Goodwitch to stop talking. Ozpin then responded to Peter's inquiry.

"While it is true that the figure has destroyed countless Grimm in this forest, that does not mean that the target is not a threat to anything but the Grimm. In fact, based on what happened to the previous team, it is fairly likely that the target will engage anyone that it detects. That is why we are going to subdue this mystery."

"Hmm, I see!" Peter exclaimed, seeing the truth in Ozpin's words.

"Plus, this area is where we hold the initiation for new students," Ozpin added. "We can't use this area to test the new cadets if all the Grimm are being killed off as they manifest."

"True."

Ozpin looked at the map displayed on his scroll. They were getting very close. In fact, if everything was correct, they should arrive in the clearing where the previous team found that mysterious floating orb in just three, two, one...

"Everyone," Ozpin said. "We're here."

The crew found the mysterious orb that was described to them by the previous team.

"So this is it," Oobleck said. "Fascinating."

As soon as those words left his mouth, the monochrome figure manifested in the air in front of them. When it landed on the ground in front of the orb, it took on a battle stance, raising it's key shaped weapon with its right arm while extending out it's left arm with it's palm's downward.

"This is definitely not a person." Oobleck spoke.

"You sure?" asked Peter. "Look at the body shape."

"People don't just manifest from orbs," Oobleck responded, transforming the thermos in his hand into a weapon.

"True." Peter said, two handing his weapon.

"What's the plan?" Glynda asked while taking out her riding crop.

"The plan, Glynda," he started to explain. "is to let Peter fight the creature head on. While he keeps the target occupied, try to take it down from afar."

"What about you, Headmaster?" Oobleck asked.

"I'll be keeping an eye on things and informing you all of any possible weaknesses this creature may have. If needed, I will intervene," he responded. He turned his head to Oobleck and Goodwitch. "Be sure to assist Peter from afar."

"Got it."

Peter rushed in, raising his blunderbuss by the barrel, and attempted to slash at the monochrome figure with the opposite end of the gun that he had modified to act as a battle axe. The figure dodged to the right, performing a quick cartwheel in the process, and quickly raised its weapon to perform an overhead slash. It was quickly interrupted by Oobleck, who used his transformed thermos to shoot fireballs at it. Not wanting to be hit, it dodged once more, this time cartwheeling to the left before being forced to create a dark barrier when Oobleck began firing even more fireballs at it. Peter joined in on the action as well.

While Peter and Oobleck kept the target busy with their combined gunfire, Glynda took out a variety of fragmented crystallized dust from her pouch. Dust is a volatile substance, prone to explode at the slightest agitation. There are many variety of dust, but the four basic is red, blue, yellow, and green. Red is fire, blue is ice, yellow is lightning, and green is wind.

She quickly picked out the red dust.

"Look out!" she shouted.

Using her semblance, telekinesis, she directed the crystallized dust at the target. Peter, having heard her warning, moved out of the way by diving to the right just before the dust made impact with the figure.

BOOM!

A fiery explosion occurred, scorching the ground and the nearby trees. Smoke enveloped the area and made things hard to see. The crew was forced to wait until the smoke cleared to see if the target was destroyed.

"Did we get him?" Peter asked.

The smoke began to clear up, revealing a big ball of darkness that had enveloped both the figure and the orb, protecting both from the explosion.

"Nope." Oobleck responded.

The darkness that had protected the figure from the explosion dissipated, revealing both the figure and the orb.

"Good," Peter said. "It would be a shame if the fight ended this quickly."

He ran straight up to the figure and held his axe in a overhead motion while running. The figure didn't move from his position while Peter ran. Peter slashed downward with his weapon, hitting the figure. The figure, however, didn't seem to be fazed. It was as though it did not took damage at all, briefly confusing Peter.

"Move!/Above you!" He heard both Glynda and Oobleck shout. The target in front of him disappeared and he looked up, seeing a masked figure in the air in front of him descending on his position with its weapon held high with both hands. However, due to his late reaction, he had no chance of dodging its counterattack.

The mysterious figure descended, slamming its key shaped weapon into the ground and caused large pillars of ice to erupt from the point of impact. The ice struck Peter from below, sending him flying backwards into the air.

'This is gonna hurt,' he thought. Peter closed his eyes and braced himself for impact. As he was about to make impact with the ground, someone caught him. Peter opened his eyes to see that Ozpin was the one to break his fall.

"Are you okay?" Ozpin asked while holding Peter.

A groan could be heard emanating from Peter's mouth.

"I'll take that as a yes," he said. "Now get up and rejoin the others. I got a plan."

"Everyone, focus your attention at that orb behind the target!" Ozpin said. "Don't hold back!"

Not questioning the headmaster, everyone switched targets from the figure to the orb of darkness. Oobleck began firing fireballs once more, Peter began firing his blunderbuss, and Glynda began throwing as much crystallized dust as she can via telekinesis.

Realizing what the three hunters were about to do, the figure, which was out of position as a result of its counterattack, quickly ran in front of the orb it. It raised its left hand, trying to form a shield of darkness as quickly as it can.

However, the dust-propelled bullets was faster. The projectiles struck the figure, preventing it from erecting a barrier in time. The bullets came, one after another. The explosion that the crystallized dust caused along with the hail of bullets damaged its body even further.

"Keep firing!" Ozpin ordered. The onslaught continued until the crew exhausted most of their bullets and dust.

After they had stopped, the monochrome figure, which had shielded the orb from harm, dropped dead from the damage it had taken from the storm of bullets and dust. Its body was then absorbed by the orb of darkness.

"So, it's gone now," Oobleck said.

"Yep," Peter responded.

"What now?" Glynda said.

Ozpin looked at the orb of darkness in front of him.

"We get rid of it," he said. "If we leave it here, that thing will most likely reappear."

Knowing where Ozpin was going with this, everyone took out their weapons.

"Everyone, on my go."

He began the countdown.

"3."

Peter and Oobleck aimed their weapons.

"2."

Glynda took out her last red crystal dust.

"1."

The floating orb of darkness began to wane and drift downwards. Noticing this, Ozpin raised his right hand, signaling to the others to hold their fire.

"Hold on," he said.

As the orb got closer to the ground, the darkness that surrounded it began to disperse. When it finally touched the ground, the darkness was gone, revealing a young unconscious boy with somewhat spiky black hair.

Ozpin turned to the team that he'd assembled, confused by the sudden appearance of the boy.

"Well, everyone. You can save your bullets. I believe the situation has resolved itself."

The roughest part is always the beginning.

Yo, this is Kanimize and I got at least two things to say.

First off, updates will not be consistent as I am mostly focused on my other story, Fate/No Heart. If you like Kingdom Hearts, Fate/Zero, or just want to read about a younger Master Xehanort doing bad things to just as bad people, I suggest you read it.

Secondly, the next chapters are going to take place before RWBY starts. Character development and all that.

Also, Team GRBY exists only to get their asses handed to them. Don't expect to see them again.

If you enjoy this so far and want to see more, you know what I want you to do. Follow, Favorite, Review, or all of the above.

Thanks for reading!