Kamen rider birth: rwby

summary: tamashii souto is a ordinary teen until he ends up in the world of rwby with nothing but the birth driver and the birth-buster. Now in beacon as a hunter in training he must help team rwby and jnpr stop roman torch-wick from causing destruction to the world. "saa let's create a new era"

chapter one arrival to vale enter kamen rider birth.

It was an ordinary day at least it was to tamashii 'soul' souto. He was a dark blue haired seventeen year old male with amber eyes dressed in a silver trench-coat over a black shirt and red pants. In his hands was the birth driver from kamen rider ooo. It was a device that had a chokokin orb in the center with a bronze turn knob on the right if it was on his body. On the left was a slot for a coin shaped item. The teen had just bought it along side the weapon of choice for birth the birth buster. It was a hand gun that carried over the theme of chokokin orb on the gun above the handle and trigger. on top was a silver-Grey part that looked like something can slide onto it to reload. Right below the barrel was a cylinder that held the ammunition that was removable as it can be placed at the front of the barrel to activate a finisher and reload the gun as said earlier.

He also had the cell medals that came with the belt. Plus the candroids that was used in the show. He also had the figures of kamen rider birth and the greeed rider posiden.

On his wrist was the cell medal replicator/holder goto used in the show. on his back was the backpack goto wore that held the cell medals. Tamashii had gotten these at the annual rider-con and had gotten them at a good price.

He entered his home and soon saw his life sized replica of the ride vendor in bike mode. He had built it with parts he could find that was intact in junkyards. It was a real motorcycle it took soul a year to turn a old vending machine he found in the junk yard into the remaining half of the bike. Stored in it was the candroids he had so far. Taka, tora, batta, tako, kujaku, Petra, tricera, unagi, and ape.

Soul put on the driver and took off the clip from his ooo driver belt and placed it on his birth driver. The blue haired male sighed as he looked at the core medal collection he had. He had the full sets of the core medals. Even the black medals. Soul found a holster and created a mold so he can make a holster for the birth buster on the driver. It was similar to the ixa caliber's holster. Removing the cylinder soul holstered the buster and clipped it to the belt.

Then he sat on his bike with his laptop playing rwby. The series was interesting to say the least. A world of remnants where the people usually have names from stories or myths. even history. In the case of juane arc. I was watching the trailers for ruby rose herself the protagonist of the series herself.

I knew ruby's story very well. She was named after the red riding hood but unlike her name sake her past was not that good. Roman torchwick had attacked her hometown and killed ruby's parents and was sent to live with her uncle crow and since then she unlocked her semblance which is considered a suicide ability. Her weapon obsession is unreal.

Her sister is yang xiao long. She wields a gun-scythe called crescent rose. Her personality is of a young child but that's because she want's to hold on to her happier memories.

If she see's death it triggers her semblance. She would generate white rose petals covered in blood when her signature red cloak turned white. But not just anyone's blood her own blood.

This is why yang is the protective older sister as she knows that ruby needs someone to snap her out of the depression that triggers the semblance.

It was during these thoughts that something odd happened. The screen to the laptop glowed silver and when the light faded soul, his bike and new items had vanished. The only thing still there was the laptop now having a destroyed screen from the fall to the ground.

(opening: reverse re:birth)

Why can't I follow my heart?
There should be no reason to give up
Dreams have suddenly left me
And disappeared…And I can only send it off
(soul was seen with his birth buster before he was shown on the roof of beacon as he jumped shooting the screen that soon formed the title and he landed and ran shooting yummy and Grimm alike.)

Don't look back; it's never too late
The thrown medal—heads or tails; now change your life
(ruby was shown in her trailer as her name appeared as she fought alongside soul with her scythe as soul turned his buster into a scythe as well)

Reverse the tears and you'll be reborn
Now open your eyes
Ah, if you feel the brightness
Development reverse, rebirth
If you take that one step
A new vision is born here
(soul was now seen with Weiss practicing his music as he watched Weiss dance then they took a break to do amtenince on there weapons with soul turning his scythe into a lance as Weiss then went into her trailer as her name came up)

Even if you know your weaknesses
If you don't control it you'll have to carry it as it is
(soul was seen with blake with cat ears now as he practiced his swordsmanship as his weapon now was a sword. Then blake remembered the events of her trailer as her name came up as she then watched soul while reading her book)

Can't take back; you cannot take back the past
But you can freely reset feelings; now change your life
(soul was seen dancing with yang as he was mimicking ryutaros' fighting style with his birth buster in gun mode as yang's trailer played with yang's name appearing as she smiled)

Reverse frustration and you'll be reborn
Now as much as you like
Ah, shout out to the sky
Situation reverse, rebirth
Once more, for your dreams
Swear to fight again here
(soul was seen fighting roman torchwick who became kamen rider posiden and soul leapt back and seven medals that obviously was not cell or core medals appeared and soul pulled out a cell medal becoming birth as the seven medals became silloettes similar in shape to birth)

Don't lose yourself
In order not to let your true self
Be stolen, or be lost
And to protect it, now change your life
(birth was seen entering birth-day form and creating his support mech while mizuru was shown looking after ruby and yang as she acted like a mother and was seen fighting Grimm with them as her name appeared)

Reverse the tears and you'll be reborn
Now open your eyes
Ah, if you feel the brightness
Development reverse, rebirth

(soul and team rwby was shown hanging out with team jnpr and velvet as they enjoyed lunch)

If you take that one step
A new vision, here…
It's the rebirth; now take that one step
Create your own legend

(the gang stood in front of beacon as a photo was taken with the team holding their weapons at the ready with soul and mizuru being replaced with birth and her true form respectively with mizuru hugging her adoptive 'daughters' all with smiles on their faces)

-vale-

soul came to with a groan. He took a look at his surroundings. He was now in a Gothic looking city that was very familiar. It took one store sign to hit home for him. The sign read dust emporium.

"im... in vale what in the world" breathed soul as he realized he was leaning on his bike and quickly stood.

The human sighed as he looked over his person and was surprised nothing was damaged. But judging from the feel of the driver and weapon they were no longer plastic replicas. Soul then checked his wallet and instead of Japanese yen he found the world's currency. They looked similar to yen but had a symbol of crossed swords on a shield. They were also made of bronze. Soul was at least glad he had the local currency and entered the shop and went to the counter.

"excuse me sir but can you make my gun compatible with dust im new to town and need something to help defend myself with to face Grimm and I just need to get my weapon the part it needs just in case" said soul.

"do you have something that holds the ammo" asked the shop owner examining the birth-buster.

"yeah there is this" said soul pulling out the cylinder. The shop owner examined it and nodded. "okay wait just a moment while I go and out fit this with the compatible part" said the owner. He took the weapon to the back and soul went to check the selection of dust. He checked the properties of them and saw that the red, white, yellow and blue dust was best for a start. Selecting ten of each crystal in a two inch size he went back to the counter where the store owner was waiting.

"here you go and you want to buy forty small crystals that would be 10.25" said the owner.

Soul counted out 11 in total and payed the owner. Taking the cylinder soul put the crystals near the opening and saw the crystals turn into energy that made a prismatic tint to the clear portion of the cylinder. Placing the birth buster in it's holster soul shook the man's hand and turned just in time to see ruby near the back.

'so im in the very start huh better check the catalouge she's looking at' thought soul. He went over and looked at the catalouge and saw it was indeed about weapons mostly scythes. Soul noted the song ruby was listening to was the opening of the series this will be the day. Soul pulled out a weapon's catalouge and found something in it that got his attention. It was an order for a sword,lance and scythe mod for weapons. He saw the list of parts included in it and saw that he could build one when he found enough parts. He heard the door open.

'so their here now time to see how roman's men can handle me' thought soul as he glanced at ruby. He was unaware a small bit of dust in powder form had gotten in the cell medal slot in the driver. He turned when he heard footsteps and quickly saw a fist head for him.

He was thrown right into ruby and after shaking off the daze surprised his reflexes prevented a black eye he helped ruby stand.

"now that was rude jeez what is with the suit you part of the mafia or something" asked soul annoyance in his voice.

"what's it to you kid" said the grunt.

Soul pulled out his birth-buster and loaded six cell medals to the ammo clip. he loaded them and put the cylinder in it's place under the barrel.

"you really want an answer jerk" asked soul letting out a shot sending the thug right back to his identical friends. Soul looked to ruby.

"hey red riding hood want in on this after all they did make me crash into you and disrupted the peace of this store" said soul.

"yeah I want in" said ruby as her hood fell. Soul saw she was the exact same as in the show. A teen girl his age in a Gothic black dress and black leggings with knee high boots and had a device in a holster on her belt. Soul nodded and as one both started to walk to the thugs as they was standing dazed. Soul and ruby punched them outside.

"sorry for the window but those guys deserved it let's go red I think roman torchwick is behind this" said soul.

"the name is not red it's ruby" said ruby.

"tamashii souto but call me soul" said soul as he pulled out a cell medal. He placed it into the driver not noticing the dust in the slot was absorbed by it and turned color. The medal was now blue rimmed and had a lighter shade of blue as the rest. It was a saichi medal.

"henshin" said soul turning the crank twice causing the orb to open with a pop.

Instantly a green force field surrounded soul as similar orbs appeared at parts of his body. His knees, arms, chest and back. They opened to reveal machine parts that formed a high tech armor over soul. Thee armor was mostly black with a half green and half silver chest plate with the orb over the heart, silver gauntlets with an orb at the part near the elbow with the upper arm of that arm having another orb. Same with his lower legs as the knees had orbs. His helmet was black with a silver mouth plate with a visor that looked like it was stacked making it look designed like a scorpion. He still had the driver. Soul had become kamen rider birth.

"now then let's get started ruby" said birth as he walked out.

"sure but afterwords you got to tell me where you got that armor" said ruby.

"it's a long story but first those punks" said birth. he gripped his birth buster and led ruby to where the grunts was just now getting up.

"now then boys where is your boss roman torchwick" asked birth as he cracked his knuckles.

"we will never tell you" said the same punk that punched soul reconsigning the weapon on him. Birth just sighed and put in another cell medal and turned the crank again.

-drill arm-

was heard before the orb on his right forearm opened releasing parts that combined to form a drill. A blue colored drill that covered his hand and forearm.

This surprised them and they paled at the thought of him being able to use it.

"now then if you rather not face me with this let me tell you whatever weapon ruby has is possibly worse" warned birth.

"it's a scythe that doubles as a sniper rifle" said ruby unfolding it after she pulled it out.

"ah I was thinking of getting a sword, lance, scythe mod for my gun to have a better chance of defending my self" said birth before he slammed his drill into the ground and it activated as it left a hole in the ground that trapped the goons in a pit.

"okay well talk he's on the rooftops" said the goon that now soiled himself.

"thanks for the info" said birth using another cell medal to activate the cutter wings which was a grey boomerang shaped device like a hanglider. He flew up with ruby and landed on the rooftop where an auburn haired man in a white suit was about to escape with the stolen dust in a jet.

"not so fast roman torchwick" said birth as the drill and cutterwing vanished. Pulling the cylinder off he placed it over the opening to the gun barrel making it apparent his ammo clip also acted as a extension of the gun.

-cell burst- was heard as three small rings of red,yellow and green appeared around the barrel.

Birth pulled the trigger and skidded from recoil.

He managed to clip the left wing making the jet fly at random. throwing roman off course.

"phew I still need to train with this so I can handle that recoil" said birth as he pulled out the medal in the slot of his driver causing his armor to vanish. Soul then waited for the medal to vanish and took a look to see a light blue medal with a dark blue rim.

"well so the dust affected the medal huh well that's a surprise" said soul just as he stood with ruby's help in time to see they weren't alone. A blond woman in a business suit was with them and soul saw she was looking at him in surprise.

"hello there my name is tamashii souto" said soul as he nodded to ruby.

"glonda goodwitch I am assistant principal of beacon a school that teaches young hunters and huntresses" said glonda getting over her shock.

"let me guess me and ruby got inogerated for the school as she took out the goons behind me right" said soul looking at the six goons in a pile with a smiling ruby.

"yes you both showed skills that earned you both a scholarship to beacon" said glonda.

"well then I hope to unlock my aura soon then as I think im going to need it" said soul.

"you haven't unlocked your aura then what was with that armor and attack" asked glonda as ruby looked just as surprised.

"that is because this driver on me is pure technology from a different world as im not from this dimension originally" said soul.

"WHAT!" shouted ruby.

"part of the long story ruby basically I was pulled from my world to here and turned the replica of some items I know well of that made then exactly like the originals. My medals are alchemical in nature and was made from the energy of desire all I know is that the medals are over 800 years old. They originally come in two types core and cell. My system usually uses cell but the dust of this world altered the cell medal I used into a dust medal" said soul pulling out a core medal and regular cell medal with the altered medal.

That reminded soul of something checking his pack he saw that the figures of the births and posiden was missing.

"great just great a figurine of one of the original kamen rider birth's enemies is gone must have become the actual being when I got pulled here" said soul.

"just how bad is this posiden" asked glonda.

"strong enough to destroy the planet but I got some of his core medals so he is a bit weakened. posiden is a homunculus of desire called greeed. And like me is a kamen rider. But unlike me who wants to protect he is the exact opposite. Not all kamen riders are on the side of justice" said soul.

"but how is this greeed dangerous with the medals" asked ruby.

"haven't you been listening the core and cell medals are what usually form the greeed's form and soul. if posiden gets all nine of his cores and a lot of cell medals then the world is doomed. It's going to be my job to stop him" said soul.

"oh yeah when you put it like that you have a point" said ruby.

"the best you can do is train until it is time to defeat this posiden right" said glonda.

"yep and I will need a team to back me up it took three kamen riders to stop posiden" said soul recalling mega-max.

"that is easily fixed you need a team in order to completely finish enrollment and take classes" said glonda.

"yep well then me and ruby will be there but first I got to go grab a part for my gun" said soul.

"oh right the sword/lance/scythe mod right" said ruby.

"that thing the sls mod is relatively easy to make" said glonda.

"i know I was going to build it my self using intact parts from any nearby junkyards that match the listed parts for the mod" said soul.

"well that may take a while" said glonda.

"there is a workshop at beacon I heard you can get the parts there and build it then install" said ruby pulling out a pamphlet.

"oh yeah that fixes that problem wait where did you get the pamphlet" asked soul.

"i was planing on going to beacon with my adoptive sister yang" said ruby with a smile.

"that her near my ride vendor" asked soul pointing down.

"oh yang" sighed ruby as indeed the blonde martial artist was fawning over the unique motorcycle.

Soul pulled out a key with a clicker and clicked causing the bike to pop a wheelie and unfold into the vending machine mode.

"if your going to fawn over my bike yang you have to ask me first after all I built it myself as a functioning replica of something I saw once" said soul as he jumped down with ruby as glonda left.

"your bike doubles as a vending machine" asked ruby looking at the candroids.

"uh those are not drinks those are candroids support mechs I use to locate monsters like posiden" said soul using a cell-medal and was surprised to see twenty taka cans came out when he selected them and hit enter. He popped one and they automatically unfolded into robotic hawks.

"okay taka flock see if you can find posiden come find me when you do and I will see about finding a way to defeat him" said soul.

The flock leader nodded and the hawks flew off.

"now then time to get ready for beacon" said soul as ruby nodded.

"wait ruby you got in yes now I won't have to worry about you when im gone" said yang in joy.

"when does term start" asked soul.

"next week come on ruby let's get packed" said yang.

"well then if you need me im getting some clothes as I was placed here with only what I had on person" said soul and went to the clothes shop and picked up some more black shirts and red pants alongside two pairs of pj's.

"there we go" said soul paying for them and put the ride vendor back in bike mode.

"well soul you can stay with us with uncle crow out of town the place is a bit lonely" said ruby.

"thanks let's go" said soul.

(end chapter)

hello there this is my new story kamen rider birth: rwby, yeah I know not a good name if you can think of something better let me know. As you can tell birth will get an upgrade here so he can fit in with the world he is in. there will be darkstalkers references and mentions of characters of that world but this is a KR and rwby only cross besides the main character here. Also I need help with names for birth's new armor modes using dust altered cell medals that I will also take suggestions of what to call them. Each armor will be based on an element from the colored dust specifically of each type. And as you may guess I added in two new colors in the next chapter to fit in with the current seven greeed medal sets. The core medals will play a role around chapter fiftheen during rwby episode 14. but as for soul's allied greeed like ankh is to eiji well who else to help yang and ruby then mizuru herself. They kind of do need a mother figure right.

Anyway enough ranting next chapter is going to be called beacon and teams part one. Im going to split chapter two into three parts as it would have been to big for one chapter and I don't want my readers to get bored. So wait soon for it.