This story is requested by Lewamus Prime 2016

I don't own these characters, they are from their respective authors and if I did own them, most of the fights on these series would have been longer and more battle than talking.

This my first more than three crossover fanfiction. If you have anything to say, just review.

I am awesome at any Monster Hunter games or any games that has a similar controls or concept in them.

Final words before story corner:

Seiro: So revealing my past and me not being the main character.

Author: Nope, this might be a double protagonist.

Seiro: Might?

Author: Because, the story might.

Seiro: Oh.

Author: Don't worry, you will have your wife

Seiro & Author: story start!


Chapter 1: The Ancient Being Reunited


...

A powerful being...

There is a figure in the space.

"Hmmm... I fixed all the mess in the original universe..."

Then the figure turns to a planet, where multi-verse exist.

"Now, to see if my creation of their destined warriors are fine."

The figure turns to the world he had created some champions into. The world where the Earthland and Remnant is mixed.

...

"What, how could this be?! I will fix this."

...

"Now, your life will be better, my champion."

Guardian

"... What happened?" thought the man.

"Where...am I."

Looking around, the man began to become worried.

"Where is Naruto and the rest?"

This man has wild black hair a bit long, muscle a little build up but thin with some abs , pecs and have his skin is light brown. His face is angular, have Ocean or sky color eyes and he has two sets of teeth fangs like and possessed a wonderful smile of an angel or a great nice guy or a fearless or fearsome. One set looks like a normal human's, while the other is retractable and are sharp teeth even with fangs (mainly used to scare opponents)He have a long red scar on his left eye and a red shape fang under his right eye. He wears a hooded black long coat jacket with red flames like but with blue lines on his sleeve and the bottom and wearing a even a symbol of an robotic logo(That's my logo of my profile's picture) on his back of his jacket. He wears a pair of black gloves with a blue shell on the backs of the hands ,a red T-shirt with a with a wide collar and a white tank top inside and blue pockets a bit baggy pants and he wears a black boots with silver and-blue steel-toed.

"Do not worry young man, they are safe."

A figure appears. Its shape is like a human, you can't see it because of the light.

"Who are you?"

"And where is my weapon?" thought the man.

"I apologize young man, your life was not monitored so that it won't fall into wrong hands. It seems that, while I was fixing the damage from other universe. I had neglected to guide my champion."

"Are talking about me?"

"Yes, I had made you to save but you suffered just because I did not protect you. As for a small compensation, I will give you a piece of my power."

"Why? I had turned out okay, despite all this."

"Because you are my champion, I was supposedly to take care of you in distance, to guide you to success. But as you can see I failed."

The man closes his eyes.

"Then, I accept. Even if I don't care, I did not even know you existed."

The figure nods.

"This power will be useful, in your world, the mages are mostly restricted one magic. But with this it will be easier to unlock them, the only thing you have to do is to train."

The man opens his eyes.

"Thank you."

"Your welcome, this will be some of the gifts I will be giving you. Now go my champion, I will be watching you on how you improve more as you grow. Your potential is nearly limitless."

"I will."

"Be careful, Zackery. Use the power of darkness and light to protect, then you might succeed in your quest of peace."

Zack nods, as he think about it. The figure snaps its shadow like light finger.

Flash

Zack is gone.

Forest around Magnolia

"Ugh, a weird dream?"

"So, your awake."

"Naruto?"

The man in question is blonde tall guy. ( Canon Naruto looks with his sage cloak he always wore, personality is more mature but still his old self but with a Katana-Scythe-Gun combo weapon.)

"I was trying to wake you up Zack for nearly 10 minutes."

"Sorry, some weird dream kept me."

"Wanna talk about it?"

"No, but we should go now or else."

Two shivers.

"Yeah, they would be angry."

"Yes, now let me change and run."

"Okay, I will be outside, waiting."

Station

"Haaaa, we're here!"

Zack and Naruto run the whole town just catch up with their friends.

"Cutting it close."

"Well sorry Weiss, I over slept."

The woman in white huffs.

"Oh come on, I was tired."

Then the woman in red speaks.

"Weiss, its not like they can control how long they sleep."

This time she snorted.

"Ruby, they should-

"Shut up Weiss, I am reading."

The woman in black interrupted her.

"Blake, I do-

Then a woman in yellow did this time.

"Weiss, stop."

"But Yang I-

Zack had enough.

"Okay, you four are-

Nya!

Glomp

"Ah!"

"Nya, calm down boy~"

"Kuroka."

"Hey, why are frowning at me nya?"

"Dunno."

"Hey Z, we are heading to Magnolia."

"Okay, lets go."

...

"We should get going."

Looking at the arguing girls.

"...Women."

"Zack, I know you like them."

"...Shut up."

Guardians

They arrived at Magnolia by nightfall, renting an inn. They stayed for the night and explore it tomorrow to see if there are some changes to it. (Modern Magnolia, only looks similar to canon but more modern, like the buildings in Remnant)

And Zack is still getting teased by Naruto.

"Naruto, shut up or I will tell Hinata that you used Sexy Jutsu again."

"NO!"

"Then stop you stop, moron!"

"A-Alright, just don't tell Hina. She might just make me sleep on the floor again after we get back, not couch."

"I know you shy yet fierce girlfriend is strict with her punishment to you."

"P-Please just don't."

"Yeah, yeah."

"I just don't think I can enter another relationship after those to did to me..." thought Zack.

"Zack."

"..Mm?"

"You okay? You zoned out just now."

"I'm okay, just some memories resurfaced."

"Zack..."

*Bam*

"We're back!"

"Yang, your too noisy. Most people are already sleeping, so be quiet."

Yang sheepishly rubs her back.

"Oops."

"Yang, you are so brash."

"Ruby, I'm hurt. My little sister is being so mean to me."

"Stop being dramatic Yang."

"But Blake-

"Blake is right and you will be quiet at least for the night."

Yang fake winced.

"Weiss too?"

Then she pouts.

"You three are no fun."

Kuroka just giggles in the background.

"So, what are we going to do after this?"

Naruto answers her.

"Easy, we do some guarding or bad guy bounty hunting jobs."

Zack nods.

"I agree, with Naruto here... Although... We can prank!"

"Oh yeah!"

*Bonk*

*Bonk*

They got hit by Weiss' fist on the head.

"Ah!"

"Ow!"

Pulling out her scroll, she began to count.

"But your first idea is good, our funds is good until next month. So if we can expand it, we can relax for a while."

"Then as the leader, I agree to this."

"Alright."

"Here I come vacation and ramen."

"Can we buy some cookies."

"There might be some hot people in beaches, it is summer anyway."

"Then I can read more."

"Nya, more cat nap nya~."

"Alright, we will have the for ourselves tomorrow. Then we depart to make some lien for at least a week then we go to vacation. Sounds good?"

""""Yeah!""""

"Then we go to sleep now, okay?"

""""Got it/Alright/Roger that/Copy that.""""

"Good."

Time skip after lunch

The girls are out and the boys are just laying in the grass.

Now Zack wants that vacation to happen now, this relaxation time for themselves is very... comfortable.

"Yeah."

"Huh?"

"Zack, your thinking aloud."

"Oh, okay then. At least it was not something embarrassing, right?"

"Yeah, I agree with you on that."

"Well, we should go Naruto. The sun is still up...wanna prank someone?"

"Alright, but who?"

...

"Any ideas?"

Naruto smirks, but Zack is too excited to notice that. But he felt some shiver on his spine for no reason ( to him), he shrugs and thought of the victim.

Then Naruto lit a bulb on his head.

"We prank the girls without being detected."

...

"I don't think we are safe after doing that."

"Just think about it, like kissing them suddenly then joke about it."

...

"That's just plain suicide Naruto." he deadpans.

Naruto shrugs.

"I dunno, it's untested. Shall we test it?"

Zack's curiosity got better of him.

"Alright..."

But he was still unsure.

"But Naruto, lets plan how we will do this."

"Oh yeah, good idea."

Time skip, inn

Zack has a very red cheeks, it is not from blushing, not from anger, it is not even from any embarrassment... Yes, it is a slap mark. To be precise, he have been slapped 4 times. Now he is in a couch, glaring at Naruto while the troublemaker laughed.

Other side of the room

team RWBY

...

"I can't believe it."

"We ah-..."

"I-I..."

"..."

"Nya~."

Back to the males.

"Ummm...sorry?"

"Naruto, this all your fault."

"I said sorry!"

"...No."

"Gyah!"

Days later

The group is traveling towards the Hargeon town to meet their last member, as he left them because of his problems. Now that he fixed his problems, he can now travel with them.

"So, when we meet him. What will we do?"

"We form a team and name it, our goal is to help those in need here in Earthland. I know that we can't make a mistake on helping them, because Naruto will detect if they are hostile or not."

"Sounds good, Zack."

"Nya~."

"Then off we go, faster we get him. Faster we can form the team to help those in need, and achieve our dreams."

They were getting closer at the speed they were traveling in but they decided that they should not waste too much energy, and walked.

While they are walking, they suddenly felt a very eerie feeling and got to their stances.

"Hehehehehe..."

A figure drops in front of them.

"Whoa, drop the stance. It's me, Seiro. Your pal, your bros." said the figure now known as Seiro. ( think of zero from mmx5 but the armor he is wearing is Dreadking Rathalos X set without helm and he has a black hair. He carries a black katana on his back that can transform into all blade related weapons that is only limited by the size of the sheath and katana.)

They drop and looked at him with deadpanned expressions.

"You and your antics might get you killed one day."

"Bah, if that happens. I will just come back later or survive in an very weird or impossible ways."

"What are you, an idiot reborn?"

"... I don't know." the last part is a bit true.

They shook their heads at his antics.

"Well, if you guys are done with your bromance-

*smack*

The two made an disgusted expression.

"Naruto, shut up or die."

Naruto pales at Kuroka.

"Yes, ma'am."

Then Seiro points at him.

"Hah, your still scared of her aren't you?"

"Shut up."

"Yeah, yeah. So what is this I hear about the team thingy?"

Kuroka loses her dark aura and answers for them.

"The plan was to get you, form a team, help those in need around the world and get hired if needed."

"... I'm in."

Zack nods at that and informs everyone to go straight to the town and get some rest for tomorrow. After sparring at least.

It was like this.

Seiro vs Zack = Draw plus destruction.

Seiro vs Naruto = Seiro wins barely.

Seiro vs RWBY = Wins to all of them but barely.

Seiro vs Kuroka = same as Naruto's.

Yeah, meditation technique after battle is cheating.

Right now, Zack and Seiro is on the balcony of Seiro's house.

"You got stronger."

"Yours got a lot more than mine."

"I know."

"So, what happened?"

"I got bullied multiple times and got hurt twice."

"That guild?"

"Yes."

"... Zack, did it... You know, hurt. As much as I described? You know being dumped, and, and all of that."

"I don't know, the only thing I know is. I got over them."

"Zack, be sure to be strong not just on magics and physical aspects. But emotionally and mentally too, even though your smart. Your emotional state might interfere in the battle."

"I know, I already learned to forgive when I little. I know much more when I met you and Naruto, I had known it for a long time."

"Then face it when the time comes, even if you forgive them. Had they changed? Who knows, all this years... Just be ready, because one day. You will meet them again, the past will always haunt you until you face them and accept them."

"Wise words for young guy."

"Hey, you know what I mean. Plus your the one to talk, your old too."

"At least i don't show it by talking."

"..."

"We should sleep now, today was a interesting day."

"I know, night bro."

Seiro disappears to his room.

"I know my best friend, and night to you too."

Looking at the sky, he saw another of his friend.

"Yo, Zack."

A cat landed besides him.

"Jin, where have you been?"

Jin Liger, Zack's exceed.

"I just fished and flew over some waters."

Zack sweatdrops, he knows that water part. (hint: what does Jiraya do in hot springs)

"Ah, well. We should go to sleep now."

After that, he also headed to his assigned room to sleep.

Morning

The team got geared after breakfast.

"Well, shall we go?"

"So Zacky-boy, where will we be going next?"

"Don't call me that Seiro, as for the place, we will go to see about the rumor of dust being stolen."

"Right, but whats next after it?"

"We all go take more missions, we are team so we will travel and help others together."

"All right." said Seiro. "Though, I know most of the places. I lived here once, though its twice now... And I only know most because, that was the places that did not change. Plus, I was the one who cause this distortion and accidentally made someone create this dimension." thought Seiro.

But he didn't, it was the deity's intention to make that happen.


Flashback (Almost around 700 years ago)(Spoiler or not?)


"This is it huh, the day I fought the strongest being... Everyone... No, I don't have anything to lose here. I already reincarnated multiple times, I'm already satisfied with my lives before. I need to save this one." thought Seiro.

Here he is, fighting the fake Ophis made from the negative energy of the void and the world. Who absorbed Madara, Aizen and etc. of villains from other dimensions. She looks a lot like older Ophis but her clothes is all black and aura is violet, radiating and destroying the surroundings.

"I need to go all out... I need to protect my friends... I need to protect my loved ones."

"You will... Die here..." said fake Ophis.

"Tch, I won't go down without a fight!"

Raising his right hand, he began to chant.

"I, who is about to awaken..."

"What are you... doing?"

"Am the the destroyer and savior of the multiverse, who lived through many lives..."

"His... power... skyrocketing..."

"I will become the slayer of infinity and dreams..."

"He... wouldn't... he... will die..."

"I am not alone." thought Seiro.

"And lead my comrades to the paths of victory!"

"!"

"Ascension Of The Dragon-God Slayer!"

"I will end this!"

"...Die."

"Blade Of Fate, destroy everything in your path. Dragon Spear mode, Gungir!"

"...No.. I won't let you win..."

"I'm just getting started!"

...


Flashback End


Seiro closes his eyes.

"After that, I lost majority of my power by destroying her and recreating the balance, and the world. That I messed up by the way. Like me being near immortal, and all of my friends even my late wife... No, I need to go on. Even if it is 6104 years ago." thought Seiro.

"Um.. Seiro, are you alright? You're spacing out."

"Oops, I spaced out on them."

"Oh, don't worry. Just some memories refusing to go away." said Seiro "Unfortunately." thought Seiro after saying it.

"Good, now. Off we go!"

"Alright, another adventure!"

"I miss them, but I have my new friends now... I will fight, I will protect them..." thought Seiro.

"Why are faking your emotions? Seiro, your our friend open up for us..." thought Zack.

They took off to make early to make it there, the shipment of the next dust shipment will be tomorrow noon.

Later

Seiro is the cook of the team to save money, he is a great cook. (Not that he was, over 7500 years ago, he was burning a boiling water which does not make sense in kitchen. He just learned from the mistakes he did and his previous lives and late wife's teaching helped.)

Seiro takes out ramen, rootbeer and his favorite food. Nuggets made from his late (long time ago around 6000 years) wife's recipe.

"Here you go."

"Thanks."

"Ramen!"

"Idiot, quiet."

"Hey, what about us?"

"Oops, another mistake. Must be getting senile in my old age, while not aging physically." thought Seiro.

"Sorry, here."

He took some cookies, not too strong alcohol, sushi... (Seiro does not know Weiss favorite food)... Then he sweatdrops..

"Um... Weiss?"

She taps her foot in irritation, waiting for him to give her, her food.

"Yes?"

"I know that I cook delicious meals, but... I don't know your favorite to make it."

"...You, you don't know my favored food? You, you...Bastard!"

"Ahhhhhh, noooooooo!"

"Take this!"

Slip

"Nooooooo!"

Seiro slips on the ice floor Weiss created before he can even run away.

"Now..."

"Guh, my arm, my arm! I can't cook without it! Stop!"

"Now, you will cook my favorite or, do I have to-

"Okay, okay just step off my arm!"

"... This is the last warning."

"Yes, ma'am."

Seiro gets up and started.

Later

"Fuuuu, I'm full. Thanks for the meal."

"No problem Zack."

After that, they went to their respective sleeping bags. Males and females are separated to make the sleep peaceful, because you need rest and anything else will just make you stay up whole night and make you tired in the morning.

"Hey, before you sleep Seiro. I want to know of your problem, why did you go to Hargeon?"

"I- Naruto, Zack, it is personal, but I will tell you both. The real reason."

...

"The real reason?"

"Were you planning to lie to us?" said Zack, looking a bit betrayed.

"No, I was going to tell a partial truth. But right now, only us male are here. So I will tell."

Seiro started.

"You see, I 'm not exactly a normal person."

Zack looks at him in a deadpanned face.

"Realization of a century."

"No, it is a realization of several thousand years. I was a reincarnating soul, I always live and die. Repeatedly growing old and go to next dimension to live again just to die and live again. I lost many of my loved ones, but this time I had to go on further."

"Ah, why is that?"

"Naruto, if you are a normal civilian in a modern world filled with other normal people. Watching TV shows that are actually real in another dimension, then suddenly got flung to it. After that, you gain powers and adopt it to your next body after dying in the first one. Sounds good? No, because you will leave your loved ones always, you don't know if you will eve see them again. Heck I don't remember my own original parents, but that will be story for another time."

"...Seiro, how many years?"

"What?"

"How many years did you live?"

"Zack, in this one I already lived around 7028 years."

The two looks at him in a shocked face.

"7-7028? H-how?"

"Naruto, as I said. I am not normal, you see. My last reincarnation was in a world with Angels, Fallens and Devils. I was a low class devil that began to rise so fast that they were surprised of my progress, one day I had become too strong for the higher levels that I can beat them without breaking a sweat. I had everything I had wanted, then I died. In my next, next life, after Naruto's original dimension, it was the original world of remnant, the world where team RWBY came from. Then, there was my desperate old enemy from one of my old life, a very crazy being who absorbs my strongest enemy in the dimension I was in. It absorbed every defeated enemies of mine and grew powerful. By that time, I was already beyond the leagues of any other beings. Only that being can match me, but it absorbed the power of the Dimensional Gap where the power is infinite. It killed my current loved ones that time and forced me to ascend to something I did not want to become."

Seiro lets out a lone tear.

"Then? Please tell us, trust us with this secret, free yourself from this burden of carrying that alone."

"I-I, I had to become the strongest being, more than strong enough to destroy multiple worlds without problem. I erased the void and killed the fake look alike of the true infinite dragon-god without problem, then it goes down hill from there fast. The erasure of it made the other old worlds I was in and the current and the next ones merge, the power fluctuation made me explode. I lived but lost most of my strength, being the strongest being made me immortal in more ways than one. I can live through anything, and dying only makes me come back weaker but regainable in power. I slept in exhaustion, after a thousand year. I woke to only see some of the seen and unseen worlds merged and modernized. Then I met you guys with me wallowing in self pity, trying to kill myself in loneliness. You guys helped, but their memories still in my mind. I tried to move on, but I can't. I wanted to be healed from the emotional wounds and scars, but it did not. I hid myself to try and sort myself, I did not succeed in it. But until that day, I helped a young girl, she reminded me of myself long time ago. Making me remember and realize my goals, I immediately called you guys to help you on your goals. My real goal was world peace and protecting my loved one, to destroy my enemies and help people. I am sorry for not telling you all this but I was wary of not being trusted anymore."

Naruto hugs me in a manly manner.

"Man, you got it rougher than anyone, you deserve all the good things you get."

"Naruto is right Seiro, we will be here for you."

"Zack, Naruto, thanks. I will help you both to your end goals in life."

"... By the way Seiro, what is your abilities, if you are keeping all of those powers?"

"Zack, I have all, even sage mode to even semblence, heck my slayer magic is dragon-god slayer. I mostly use my demonic ones though I have chakra to rival Naruto's chakra level. But I can see that you are near or equal to me when we both go all out, Zack. I can see that you would surpass us, the only edge I have to you is the experience."

Zack looked sheepish.

"I kinda told all of you a partial truth too, I am a half blood, a half human and half demon."

"Then I guess you are older than you look."

"Say that to yourself old man over 7000 years old, who acts like he is a in our age group."

"Yeah."

Seiro raises his middle on them at that.

"Point to me."

"Heh."

"Then how old are ya really?"

"Well Seiro, I am just a youngling of a 400."

"Young my ass."

"Yang my ass."

"Naruto!"

Then the night went on as they trained a little, that repeated every night from that day. Learning each other's secret and training.

Chapter End


This is definitely took some time to make but worth it.

And hey Lewamus, if you are reading this. Give some review or say it in the PM okay?

MHMasterHero007 - I am a half Filipino and a half Japanese, please don't flame me on wrong grammars and spellings. I am not a master of english language, I just played too much english games and learned from it.

Next time, Fairy Tail enters the story.