Hey, guys! This is a brand new crossover franchise: the World Chronicles series, a remake of the old Battle Saga and World Adventures series! (Which is also a total revision of the ENTIRE World Adventures series overall along with the other two upcoming stories)

This first one is a crossover of Saint Seiya Omega, Fairy Tail, RWBY and Haikyū! (Based off the Haikyū! Ninjas story) from my previous idea, Galaxy Battle Nexus for Haikyū!, along with the new addition of unique powers for some characters). Also inspired by fellow FanFiction authors Superior-Creativity, XFangHeartX, Autistic-Grizzly, AnimeFan299110 and Iron117Prime! A key element in this story will be seven powerful gems almost equal to the six Infinity Stones (from the Marvel Comics) known as "Cosmic Gems" with the abilities of the seventh (and newest) stone be explained later on, as heroes from those four universes will work together with friendly Earth allies and some allies from their respective worlds to fight against enemies old and new of all four worlds and Earth, especially a god bent on multi-universal conquest. Hope you enjoy!

Saint Seiya Omega is a spin-off of the Saint Seiya series by writer and illustrator Masami Kurumada, and the anime is produced by Toei Animation and (if the series was ever released in dub) is licensed by Studiopolis / Bang Zoom! Entertainment and Funimation

Fairy Tail belongs to writer Hiro Mashima and Weekley Shonen Magazine and the anime is produced by A-1 Pictures, Dentsu Inc, Satelight, Bridge, and CloverWorks and is licensed by Funimation

RWBY belongs to creator Monty Oum (R.I.P) and Rooster Teeth

Haikyū! Belongs to writer Haruichi Furudate and Weekley Shonen Jump and the anime is produced by Production I.G and licensed by Sentai Filmworks / Seraphim Digital


Holy World Chronicles

Prologue

The Colosseum, Athena's Sanctuary

Kouga, the Pegasus Bronze Saint and savior of Earth four times, was training hard in the colosseum of the Sanctuary, home to the Goddess of Wisdom, Athena, throwing several practice jabs. He is thankful he has the weekend before returning to his alma mater, Palaestra for future studies. It is currently nighttime and wanted to use this opportunity when no one is around.

Kouga did one last punch before exiting his punching stance, exhaling outward to catch his breath.

"Working hard I see?" A voice asked, as the Pegasus Saint turned to see his fellow bronze and best friend, Lionet Souma just entering the colosseum.

"Hey, man," Kouga greeting his comrade as Souma walked down to meet with Kouga.

"Been itching for a fight since the battle with Venus four months ago," Kouga explained. "Gotta do something!" He hollered.

"Well, if only you could study a bit more," Souma teased, getting a light punch to the shoulder by Kouga.

"But seriously, staying in shape is the best way to be ready for anything." Souma commented.

"I hear ya," Kouga said as he went over to where he placed a towel and a water bottle for his breaks. He opened the bottle and took a few sips before putting the bottle down and patting the towel on his head to wipe the sweat off.

"Get some sleep when you're done," Souma said as he decided to leave. "The gang plan to hang out tomorrow, and you're coming."

Kouga gave a warm smile, "You bet I'll come."

Souma grinned as he decided to leave. Kouga was now once again alone in the arena, looking up at the bright night sky. He started at the stars shining, and connecting to form the constellations that he can currently see.

Then out of nowhere, a bright light flashed from the full moon so wide, Kouga could only shield his eyes from harm.

XXX

Abandoned Warehouse

Kouga began to slowly open his eyes, slowly getting up to try and remember what happened during that brilliant flash.

"Man, either I didn't go to sleep or…" Kouga's trail of thought stopped when he began to see where he is: not in the Sanctuary anymore, but an entirely different location.

He is currently standing in what appears to be a warehouse, dirty and abandoned. Several old stuff were sorted in several metal columns, mainly unusable or fake. Slowly getting up, he looked at his new surroundings, probably wondering if he got transported to another location on Earth by accident.

"Okay…" Kouga said.

"Well, well… So you were brought here." A voice snarked, alerting the Pegasus Saint. He looked up, and to his extreme surprise, were two enemies he once encountered! The 2rd-class Venusians, Sauk and Tetra as they were standing above on the warehouse second floor!

"Sauk?! Tetra?!" Kouga yelled.

"Surprised to see us, God Slayer?" Sauk asked.

"And too bad your buddies aren't here to save you," Tetra mocked.

Kouga gritted his teeth in anger, deciding to figure out his accidental placement for later, and deal with his old enemies first. His Pegasus Superior Clothstone, currently in the shape of his diamond necklace, glowed bright.

XXX

Kouga's Pegasus Superior Clothstone began to twirl around as it faded into the galaxies.

The stars formed the constellation of the Pegasus.

Kouga donned his cloth.

Kouga then made a few punches with his fists as he appeared in a fighting stance.

Kouga was ready for battle.

XXX

Kouga charged with speed at the two Venusians above, which the two effortlessly dodged and moved to opposite directions. Sauk attacked first with a punch that Kouga blocked by crossing his arms in an "X" in front of his face, protecting himself from the impact. But the force was strong enough to push Kouga back, slamming him into a metal bar that holds the second floor.

Feeling such force, Kouga was surprised he was pushed back. But he didn't have time to think as Tetra came in front with a fast flying kick, forcing Kouga to roll to the side as Tetra cleanly slashed through the metal bar, causing the second floor above to become unstable despite a few more still holding strong.

Kouga regained his balance and fired a blast of light from his hands at Tetra, blasting him a few feet back but regained balance and took moderate damage, which again surprised the Bronze Saint. "What the heck is going on? My strength, speed, technique - everything's different!" He thought.

Sauk dashed forward, engaging Kouga in a fist skirmish as they rapidly punched and blocked each other to find an opening. Kouga was able to find an opening and punched Sauk in the stomach hard, before kicking him to the side.

Tetra came from above and fired several energy blasts to catch Kouga off-guard. Kouga managed to dodge thanks to his speed since he realized during the fight he noticed the two aren't as strong before, and probably around his level of power. Using that, Kouga jumped into the air and charged straight at Tetra with light engulfing his right fist.

"Pegasus Flash Fist!" Kouga shouted, punching Tetra in the face with a right hook, knocking him into several crates which the Venusian crashed into. Kouga smirked, knowing he at least made some dent before Sauk came from behind and, cupping both fists together and raising them above his head, Sauk slammed his fists downward on Kouga, knocking him down.

"Don't get cocky, Pegasus," Sauk said as Tetra started to get up, straightening his jaw. "Why don't we show you a little pain," Tetra explained.

Sauk and Tetra joined together as they prepare their attacks. "Shadow Grayer!" Sauk shouted, releasing a powerful stream of shadows from under Kouga's feet, causing the teen to yell.

"Mena Optimum!" Tetra shouted, shooting out a powerful wave of dark matter energy that damaged Kouga, despite his Pegasus cloth protecting him from extreme harm. Kouga crashed into a wall.

Kouga was able to get back up despite being blasted, but panted lightly from the damage. He figures the battle won't be easy, but he needs a new plan and fast.

"How did you guys come back to life anyway?" Kouga questioned.

"That's something you don't need to know boy," Sauk replied, preparing to finish off Kouga.

But a breath of fire appeared out of nowhere, forcing the two to dodge backwards. They soon were soon met from behind by a reddish-orange blur staggered them hard like a cannonball, followed by a red whirlwind with scattering petals, speeding around the two before a gunshot fried from within, which put the two on ice, before the first person delivered a powerful punch to Sauk, colliding with Tetra and crashing them into a wall hard enough to crack.

Kouga could only stare in disbelief that the Venusians were caught off-guard… and he doesn't feel any Cosmo coming from these now three individuals that came out of the shadows for him to see. The three figures reveal to be none other, than heroes from other worlds! Fire wizard Natsu Dragneel of the Fairy Tail Guild, Team RWBY leader Ruby Rose, and surprisingly… Karasuno High School first-year student, as well as a middle blocker of their volleyball club and reincarnation of a famous teenage swordsman, Shoyo Hinata, wielding his pair of Ninjatō swords!

"W-Who are you guys?" Kouga asked, out of shocked, though Natsu, Ruby and Hinata weren't exactly sure themselves; having just met and attacked at the same time and it's something to figure out.

Natsu and Ruby, were having sparkles in their eyes as they were amazed by Hinata's dual katanas, as well as Hinata's talent for using them. "Those swords look freaking COOL~!" Natsu and Ruby yelled in unison.

Hinata himself, didn't respond because he himself was freaking out of his mind. "HOLY COW! HOW DID THESE SWORDS END UP IN MY HANDS AGAIN?!"

Sauk and Tetra grunted and got up from the destroyed walls, which grabbed the heroes' attention.

"Who are these kids? They ain't Saints," Sauk said, flicking some stray rubble off his Venusian armor.

"Doesn't matter. Let's just get rid of them," Tetra noted, straightening himself.

"Hey, uh, how 'bout you seven help me take care of these morons, and then we can figure out the rest later," Kouga explains, getting into a fighting stance to fight Sauk and Tetra again, this time aided by Natsu, Ruby and Hinata.

"Okay! I'm fired up!" Natsu hollered, mashing his fists together as fire came from both.

[Begin Pegasus Fantasy ver.Ω Op]

Sauk and Tetra charged forward, but Kouga was the first to intercept them in a collision before they backed off. Kouga then attempted to strike Sauk first, but Tetra intercepted him, giving Sauk the chance to strike. Natsu moved to the side and igniting his right foot, delivering a Fire Dragon Claw that kicked Sauk first, squared in the face and knocked him into another wall. Tetra let go of Kouga to catch Natsu, but Natsu instinctively dodged before he and Kouga did a double kick with enough force to send him straight into a third wall. Sauk, recovering from Natsu's earlier strike decided to overwhelm the teens by jumping to the second floor.

Ruby, using her Semblance to fly upward to intercept Sauk, swung the hybrid from of Crescent Rose with the bullet being Gravity Dust to act as recoil for the increased force, slashing Sauk with sheer speed the Venusian didn't see coming. Sauk was angry and attempted to strike Ruby, but Hinata quickly raced up to the second floor by running up the right wall with new speed before jumping off the wall once he reached above to catch Sauk from behind, attacking with his katanas, swinging them to the left behind Sauk in a dual horizontal slash, angering Sauk before Ruby got in close and got her chance to strike.

Natsu performed a flaming sweep kick to keep Tetra (who recently got back up) off-balance, allowing Kouga to strike with a kick of light to send Tetra flying again, now met by a now-thrown off Sauk, courtesy of Ruby and Hinata, causing the duo to crash into each other.

Ruby and Hinata came back down to meet with Kouga and Natsu. All four were surprisingly working together really well despite just meeting each other. Almost like they were working together by pure instinct.

"Why down't we finish this together," Kouga suggested, which Natsu, Ruby and Hinata all grinned in reply as the two Venusians struggled to get back up.

"Pegasus Meteor Fist!" Kouga shouted, firing multiple light punches faster than the speed-of-sound.

"Fire Dragon Iron Fist!" Natsu shouted, charging forward with a fire-clad fist.

"Sniper Shot!" Ruby shouted, firing up to three Dust bullets from Crescent Rose in its standard rifle form.

"Dragon Fang!" Hinata shouted, performing an "X"-shaped slash from his swords with a burst of speed.

The four combined their attacks as they charged at Sauk and Tetra, not having enough time to dodge and to their shock, were hit dead-on, sent flying through another wall with extreme force that generated an explosion, blasting through as the two flew straight into a river. The explosion left smoke in the aftermath, causing some onlookers to notice.

[Pegasus Fantasy ver.Ω Op ends]

XXX

Kouga, Natsu, Ruby and Hinata gave a hi-five, congratulating on their win.

"You guys were so COOL!" Hinata yelled, excited to fight alongside new friends.

"And not to mention those cool swords you have!" Ruby hollered, giddying at Hinata's Ninjatō swords, making the Karasuno decoy nervous.

"Hey Happy! It's safe to come out now!" Natsu called out, leaving the others confused until they saw the most unexpected… coming from the celling was Natsu's flying blue cat (or Exceed) partner, Happy. Kouga, Ruby were greatly surprised, while Hinata was being excited.

"You were awesome, Natsu!" Happy commented, which Natsu snickered.

"IT CAN TALK?!" Kouga and Ruby thought in unison, superbly dumbfounded.

"It can talk and fly!? Awesome!" Hinata hollered, excitedly.

"Nice to meet you too." Happy said.

"So… what do we do now?" Natsu asked, which leaves the five of them in deep thought with what's happened recently. They didn't have time however, as they heard sirens from outside.

"Does anyone else hear that?" Ruby asked.

"I think… it's the cops," Kouga answered, having a sweat drop on his forehead as Natsu and the others gasped.

"WHAT'LL WE DO?!" Happy, Ruby and Hinata exclaimed in unison, now freaking out.

Natsu suddenly thought of something as an imaginary light bulb appeared on the top of his head, flashing.

"I think I've got something!" Natsu hollered, which surprised Kouga, Ruby and Hinata. Only Happy knew what half-baked idea Natsu's gonna come up with.

XXX

Five minutes later…

"Uh…" Kouga muttered, his eyes white blank in utter disbelief.

"How is this a good plan?!" Kouga exclaimed, now freaking out as he, Ruby and Hinata are in front of Natsu and Happy, who were holding onto each other with joined arms as Happy was getting ready to use his Aera Magic to the fullest; Natsu only has his right arm free to use his magic as an extra booster.

"You guys ready?" Natsu asked, out of excitement.

"NO!" Kouga exclaimed.

"This is a really bad idea, Natsu…" Happy muttered, not comfortable with Natsu's idea.

"This is gonna suck…" Ruby whined, feeling scared.

"Why did I agree to this?!" Hinata exclaimed, a red tick mark appeared on his forehead.

"NOW!" Natsu shouted, shooting a strong burst of fire from his right fist to push them upward.

That gave Happy the command. "Max Speed!" Happy shouted.

In a massive burst of speed, Happy flung extremely high with Kouga, Natsu, Ruby and Hinata in tow. The five of them were screaming their hardest out of fright. They were flying high in a straight line with no stopping for a while from the warehouse full speed, until they were decreasing in speed and falling downwards now that Happy and Natsu's collective magics have worn off, and right into a large pool, causing all five to scream.

The splash was big enough to make the shape of somewhat a small geyser, which also grabbed the attention of a young teenager with messy blond hair, brown eyes, and dressed in pajamas that just woke up from the sound to look outside, now interested as the four teens and the little Exceed were knocked out in the pool.

The start of a grand new adventure begins!


Preview Skit:

Kouga: So I guess we're all in this together?

Natsu: I'm all fired up now!

Happy: Aye, sir!

Ruby: Wonder what we're gonna do next?

Hinata (showing a fascinated expression): So cool… I'm meeting some of the best anime characters I've seen on TV!

Kouga smiled.

Kouga: Next time: Chapter 1 - Warriors Come Together!

Kouga, Natsu, Happy, Ruby & Hinata: Hope you enjoy!


A great way to start this story! I don't own any of these four respective series, and they belong to their respective authors (including the FanFiction versions).

Adding Haikyū!, with the idea from my previous story Galaxy Battle Nexus will surely benefit in this, and following up from Haikyū! Ninjas! Also, this will be the one crossover I've been hoping for after many trials and errors. Hopefully it will be appealing and amazing.

Also to ensure there is no confusion on how each of the series are currently running based on HUGE character development: Saint Seiya Omega takes place after Saint Seiya Omega: Ryusei (by Superior-Creativity), Fairy Tail takes place after the Tartaros Arc in the anime (but in an AU where Fairy Tail is still active (following "A New Family"), but Natsu shortly left on a training journey with Happy), RWBY takes place after Volume 5 and before Volume 6, and Haikyū! takes place after both the Haikyū! Ninjas FanFic story and the Post-Spring High Preliminary Arc in the anime (which takes place right after Karasuno winning against Shiratorizawa and going to Spring Nationals).

In the meantime, I will be taking a break once again until the start of the New Year. Just needed to get the prologue of this story and the other two (that are coming in moments) to start first. By 2022, I'll be focusing on doing chapters 1 up to 11 of Holy World Chronicles based off Holy World Adventures, then the old chapters of Super World Adventures to Super World Chronicles which will take a little longer, then the first chapter of Grand World Chronicles and work my way from there.