Underground Omniverse

Gammatron: Hey guys. I own no one in this story nor the series of Sonic Underground, Ben 10 Series, or the BlazBlue series. I do own Roll Cyber Sakurai, though.

Rebel 8: Lust SIN

"Dude, why aren't we out there and in the hospital?" Manic frowned as he and Sonic walked through a wing of the hospital.

"We're going to see just what whatever it was did to that warrior," Sonic replied, "I'd rather not go unprepared."

"I'm afraid you'll have to," the two turned to see a saddened Sköll, wearing a black kimono, "The survivor passed on just an hour ago."

"What?" Sonic gasped.

"Come," Sköll ordered as she led the two into a room with a lone figure in the bed, their body completely covered by the cloth.

"Oh no," Sonic whispered.

Sköll ushered the two over to the covered figure. She removed the cloth a bit and the two hedgehogs paled. Nearly half the body had been frozen solid in ice. In her hands was a black rose, a few tears staining the petals. What really got their attention was that the body was that of a Mobian mix of a hedgehog and a fox.

"Rose Sakurai," Sköll explained to the two, "We couldn't melt the ice and it was absorbing her soul, her very life force, from what we could diagnose."

"This is more than what I thought would be threatening about it…" Sonic whispered, his fists shaking a bit.

"So you can extend the time by not using it for fights or exerting yourself?" Makoto pondered the two girls still riding on Howler's back as he followed a scent trail through the snow.

"Yeah," Howler replied, "The less I do as an alien, the longer I can use it without the influence forming."

"That's ingenious," Sonia noted before the alien wolf hit something.

"Ah!" Howler yelped, accidentally tossing the girls into the snow as he shot up and rubbed his nose.

"Uh…B-B-Ben…" Makoto paled, "S-s-s-s-s-s-sonia…"

She zipped behind Howler and Sonia while pointing a shaking finger at what Howler hit. The two looked at it and screamed, causing Makoto to scream as well. Before them was a frozen wolf Beastkin, a look of pure terror on her face. Makoto scooted away and hit something with her back. She slowly looked up to see another frozen warrior, her upper half separated from her lower half in the ice. Makoto screamed again as she jumped into Howler's arms with Sonia.

"Well…we…we found what happened to the others…" Sonia whimpered.

"S-s-s-scary…" Makoto cried softly, 'Aw man…Even with what I've seen as a NOL Intelligence Officer and a spy for Sector Seven, this still freaks me out!'

Howler saw one just almost frozen solid. He put a pair of claws on her neck.

"…She's gone," Howler whispered as he looked around, "They're all dead."

"I know this ice," Makoto gulped, "It's Soul Ice."

"Soul Ice?" Sonia repeated as the two girls regrouped with Howler.

"It's a magical ice, one that freezes not only the body, but freezes over the soul in order to absorb it into what casted it, making it or the weapon used to cast it stronger" Makoto informed, closing the eyes of the passed on warrior.

"You sound like you had experience with this kind of ice," Howler noted.

"…It was two years ago. A war had broken out between Ikaruga and Kagutsuchi," Makoto explained, "I was on the field for the last battle when I saw the guy who would eventually be known as 'The Hero of Ikaruga' unleash his blade upon the enemy. This ice engulfed them all with no survivors."

"Remind me to avoid him then," Howler gulped as Sonia nodded in agreement, "Let's-uh...let's keep going. Yeah. That should be good enough. We'll come back to get them later."

"R-Right..." Makoto nodded before the three walked away.

"Faster, Bro! Faster!" Manic shouted.

"I'm going as fast as I can!" Sonic growled as he zipped across the frozen lands, 'We have to find them...'

"...Hey, Bro..."

"What?"

"She seemed so peaceful, didn't she?"

"Who?"

"The lady who died by the ice. You think that flower was given to her by someone she really cared for at the end?"

"Manic, can we not talk about this?"

"I'm just saying that to die with a smile...seems like they enjoyed their life to the fullest," Manic noted.

Sonic kept quiet but gave a nod. To have that kind of thought for one who passed on was kinda nice. He glanced up at Manic, noting the quiet, thinking look his younger brother had on his face. Guess he was thinking of that as well. Manic must have seen a lot of death in his childhood with all the thieving and fighting. It got Sonic to ponder how long Manic was 'innocent' to death.

"Ben, you lasted well over ten minutes as Howler. Yet you said you had a ten-minute time limit for your aliens," Sonia noted.

"That's during fights and overexerting myself," Ben explained, "I didn't really do that since we took a few breaks every now and then."

"At least you got us close enough to a cave," Makoto noted as she pointed at a cave ahead.

"Thank good…" Sonia began before the cave exploded, "And I think we just found the problem."

"There you guys are!" Sonic called as he skidded to a halt with Manic on his back, "Guys! The thing's ice is eating their souls!"

"Hishōken (Ice Flying Sword)!"

Makoto paled, "Oh no…It…It can't be…!"

"What's wrong, Mako-whoa!" Sonic yelped as he jumped over a buster-sword made of ice, "What the heck was that about?!"

"It's him…" Makoto slumped.

Out of the smoke, two figures jumped out in a stalemate of blades. One was a Mobian hedgehog-fox fusion. Her coat of fur was a moderate grayish-gold with a soft snow-white muzzle and moderate jade eyes. Her quills went down to her hips and held together just above the bottom by an oversized green bow. She wore a heavy pink and black snow-coat with red trimmings of a fur-like fabric and baggy black snow-pants. In her hands was a cyan rapier with lightning bolt designs on the guard and a tentacle-shaped handle/hilt.

Her opponent was a human, one that Makoto knew all too well. He was a good-looking and slender young man with short, stylish blond hair and green eyes. He wore the NOL major uniform Makoto had seen on him before with a black turtleneck and leggings under a white Japanese-style garment, white gloves, military boots, and a "jolting sapphire" colored jacket with a red lining and very long, detached sleeves. In his hands was a long katana with a silver attachment connecting the blade to the green and white hilt/handle, the silver attachment having two silver 'tube's on the sides and pointed upwards along the blade.

"Jin Kisaragi," Makoto gulped.

"That's Jin Kisaragi?! The one you called the 'Hero of Ikargua?!'" Sonia gawked.

"How'd he end up here?" Ben pondered.

"Murderer!" the Hedgefox screamed as the two jumped back from each other before she lunged, releasing a cyan laser from the tip of her blade, "Cyan Shooter!"

"Summon Yukianesa (Snow Woman [A/N: A Yukianesa/Yuki-Onna is a Japanese fairy of winter])!" Jin roared as he sheathed and drew his blade, creating a wall of ice that reflected the laser back at the Hedgefox.

"Yikes!" the Hedgefox barely dodged.

"Again with you mutant Beastkin? Honestly!" Jin growled.

"Shut it! You killed my clan!" the Hedgefox growled, "I will never forgive you for that! Not now! Not ever! Laser Lance!"

With that, she swung her rapier in a vertical arc. A lance-shaped laser shot out at Jin. The former Major of the NOL jumped over the attack and sent another blade of ice at the Hedgefox. She barely jumped back.

"Fenrir!" Jin roared as he stabbed his blade into the ground.

An ice wolf head twice the Hedgefox's size erupted behind her. It nearly impaled her if Sonic hadn't zipped by, grabbing her.

"Come here often?" Sonic joked as he stopped by the others.

"What are you doing?!" the Hedgefox frowned before hissing in pain.

"He broke the skin," Mani informed, seeing a bit of blood on the frozen wolf head, "But you'll be okay."

"That…That would have impaled me!" the Hedgefox gasped, "Oh, dear...Yacker, please tell me you see this."

Her rapier glowed before turning into a short-sword. Floating above it was a squid-like creature, the size of her head. It had three tentacles with a curly 'point' on the top of its head, and one large red eye. It blabbered a bit at the sight of the blood.

"Major!" Makoto called as she ran up, stopping a few meters away from him, "What are you doing?!"

"What's it look like? Taking care of these mutated Beastkin," Jin replied.

"Mutated B…?!" Makoto frowned, "They're Mobians, idiot!"

"Idiot?! You little bitch!" Jin growled.

Makoto Nanaya vs Jin Kisaragi

Stage: The Frozen – Cast ye in the name of God. Ye are not Guilty.

"Dispatched in Mankind's darkest hour, we are knights of the blue flame (Oh, shoot. I forgot)!" the two recited, Makoto forgetting the other half of it.

"…Seriously?" Jin scowled at the Squirrel Beastkin.

"It's hard to remember that, okay?" Makoto pouted before shaking a fist behind her-not once looking away from Jin-, "One comment from any of you and all of you are getting your asses kicked!"

THE WHEEL OF FATE IS TURNING – REBEL 1 – ACTION! CUE: Lust SIN – THEME OF JIN KISARAGI

"Fenrir!" Jin roared as he swung his blade, unleashing a massive wolf head of ice at Makoto.

"Spoon!" Makoto cried out as she did a powerful punch with her right fist, shattering the ice wolf.

"Musō... Senshōzan (Mist Spear…Piercing Crystal Slash)!" Jin roared as he shot through the shattering ice, riding upon a vehicle-like ice bade.

"Yikes!" Makoto yelped as she barely ducked, only for Jin to jump off with a flip and slam a foot into her back, sending her tumbling ahead a few meters, "I landed on my tail…"

"Musō Senshōzan!"

"Not again!" Makoto yelped as she jumped over the attack and began to hover by spinning her tail.

"She can fly with her tail?" Manic blinked before Makoto swooped down at Jin.

"Squirrely Dive Bomber!" Makoto shouted as she attempted to slam a fist on Jin.

"Ue ni mukyō (Beyond boundaries)..." Jin began.

Makoto got closer and swung. Jin blocked the attack and unleashed a quick draw. Makoto cried out as she was frozen within a pillar of ice. Jin began to sheath the blade.

"…Kokūjin: Yukikaze (Empty Air Array: Snowy Wind)!" Jin finished.

With the final 'click' of his blade being put into its sheath, the ice shattered and Makoto dropped down, her arms and left leg frozen in the ice. The five watching cried out in fear for the Squirrel Beastkin.

DISTORTION FINISH!

"Makoto!" everyone but the Hedgefox cried out.

"Oh no," the Hedgefox paled.

"Thanks again, Kevin."

"Dude, any reason why you didn't just go Alien and go home that way?" Kevin asked.

"Lighten up, Kevin. Ben's trying to stop using the Ultimatrix so much," Gwen noted.

"Whatever. We both know that Ben just wants to be seen more responsible so he can get that new Omnitrix from Azmuth," Kevin snorted before slowing down his convertible, "Uh oh."

"What's up?" Ben pondered, peeking out from the back seat to see a crowd of people were gathering.

"Ben…are they gathering at your house?" Gwen pondered.

"Seems like they're heading that way," Ben noted as the three got out of the car.

One of the people in the crowd noticed Ben and began to whisper to the others. Within moments, the crowd parted for him. The three felt an uneasy silence in the crowd. Not one was cheering or excited at seeing Ben…they were all giving him sympathetic looks. He felt a bad feeling well inside of him. Ben quickly ran ahead, the feeling inside of him growing worse. He skidded to a halt and paled.

"Whoa…" Kevin gulped as he and Gwen ran up.

"Your house…" Gwen gasped, seeing the one-floored building had ice emerging from broken windows with a few bodies of Forever Knights littering the front yard.

"Mom! Dad!" Ben screamed as he ran into the building, the door already broken.

Somewhat melted ice was in the living room, yet it was still covered in ice. He slid down the hallway and went through another broken door. He nearly lost his smoothies of that day at the sight. Around the room were frozen Forever Knights. In the center of it all, hugging each other gently in a final eternal embrace, was his parents, their clothes torn in places with blood staining various places.

"No…Not again…" Ben whispered as his trembles grew.

"Now…to finish you," Jin scowled as he began to approach the semi-frozen, groaning Makoto.

"Come on...Come on..." Ben gulped as he cycled the aliens for use in his Ultimatrix.

Ben smirked as he spotted a symbol for an alien on the selection wheel. It had been a long time since he had used it last and it was the perfect opportunity. He looked up at Jin as he began to approach the semi-frozen Makoto.

"Hey, Jin!" Ben shouted, causing the man to turn from the semi-frozen Makoto, "Why don't I introduce you to a guy you'll hate with with a burning passion?"

With that, Ben slammed the Ultimatrix emblem down. Time seemed slowed around Ben in his mind as the transformation took place. Charcoal and melting stones raced up his left hand and right to his shut eye. His body was engulfed in more of it as crack between the stones revealed that his body had become fire and magma beneath. His head erupted into flames, revealing a single red head-like stone within. Small 'volcanoes' formed on his shoulders, blowing out flames. The emblem of his aliens formed upon his torso.

"Heatblast!-!-!" the alien roared as the area around them began to start warming up almost instantly.

Ben Tennyson (Heatblast) vs Jin Kisaragi

Stage: The Frozen (Boiling) – Burn away thy sins. Repent for thine actions of death and despair.

"A form of flames? Ha! As if that will stand up against Yukianesa!" Jin declared as he assumed a drawing stance.

"Time for you to get a hot foot," Heatblast smirked, his flames growing stronger.

THE WHEEL OF FATE IS TURNING - REBEL 5 - ACTION!

With that, Jin swung his blade, encasing Heatblast in ice. Heatblast's face retained it smirk in his icy prison as it started to glow red and melted away. Heatblast roared as the ice was evaporated within an instant…along with the snow around them and Makoto's ice.

"S…Such power…" Sonia whispered in awe and shock as the heat died down.

"Sorry, Sno-Cone, but fire beats ice," Heatblast smirked.

"What?! How can this be?!" Jin growled as the Pyronite ran between him and Makoto.

"Because I'm on fire," Heatblast smirked before sending a wave of flames at Jin, making the man dodge, "Makoto, get out of here!"

"Right," Makoto nodded before racing off to the others.

"Oh no you don't!" Jin roared out as he sent an ice sword at her…only for a fireball from Heatblast to intercept and melt it.

"Hey. Leave her alone! You're dealing with me," Heatblast growled.

"Why you…"

"Burning Tornado!" Heatblast roared.

With that, Heatblast swung his arms. A wave of flames erupted from the swing and quickly turned into a whirling tornado of flames. Jin entered a drawing stance.

"Rehhyō (Rending Ice)!" Jin roared.

Jin performed a stationary vertically-aimed quickdraw slash. A wall of jagged ice erupted before him and parried the flames. The two attacks were cancelled out before Heatblast charged through the steam.

"Inferno Rocket!" Heatblast roared as he slammed into Jin's gut, causing him to scream in pain at the intense heat before Heatblast did a roundhouse, "Hotshot Roundhouse!" He then delivered an uppercut, "Blazing Uppercut!"

"He's beating him back!" Makoto gasped.

"Enough!" Jin snapped as he jumped back, his shirt burned off to expose his new burns, "Astral Heat!"

"Oh no…" Makoto paled as a blizzard began to erupt around Jin.

"What's going on?" Sonic gulped, the three hedgehogs unaware of their Medallions starting to tremble.

"He's activating his Astral Heat…" Makoto gulped.

"What's an Astral Heat?" Manic asked, trembling a bit.

"The ultimate attack. It pours all your power into one super massive power strike," Makoto explained, "Though it leaves you drained for a bit."

"Yikes," Manic gulped, "So what's his do?"

"…You thought his last ice attacks were bad? Well…this one is said to have the full force of a thousand Ice Ages rolled into one, single strike!" Makoto exclaimed, "I heard that his attack is capable of devouring souls instantly due to the harsh cold of it."

"Oh no…" Sonic gasped with the Hedgefox.

"Ben! Get out of there!" Sonia shouted.

"Behold the power of Yukianesa!" Jin roared within the blizzard.

"…" Heatblast looked down to see his body was starting to freeze over, "Nice try. But you know the saying…'Can't take the Heatblast…'" Flames and heat began to flare out of him, evaporating the ice trying to ensnare him, "'…Stay outta his way!'"

Heatblast barely recalled an old memory. It was when he was ten and an incident with the destroyed Fountain of Youth. He couldn't remember much, but he remembered bits of his time as Heatblast…and how hot he had gotten. It was hotter than anything he had used before or even now. Heatblast closed his eyes and began to focus. For a few second, a strange white emblem appeared behind the two. For Jin, his symbol resembled a heart divided in half by a black blade with a snowflake guard with six arrows surrounding the 'heart' and two unicorns near the bottom halves of it. But for Heatblast, It resembled his Ultimatrix emblem surrounded by eight 'wings' of flames, vines, ice, ground, lightning, 'shadows,' 'light,' and 'space.'

"He…He can use Astral Heat?!" Makoto gawked.

"Eien ni itetsuke (Freeze eternally)!"

"Burn away…"

"Rengoku Hyōya(Icy Night of the Purgatory)!"

"Supernova Rampage!"

Jin was about to draw his blade when a snowball thrown by Makoto bonked him upside the head. That was all the distraction Heatblast needed to ram into Jin. The flames of his feet erupted and sent the two high into the air, right into lower outer orbit.

"Let me show you…" Heatblast spoke before forming meteors all around him from his body and flames, "…Why I'm the Universe's Ultimate Hero!"

With that, the meteors were unleashed, ramming all around Jin's body. Heatblast rode on the largest one, the size of their bodies put together. He rammed right into Jin and they shot down at their take-off area.

ASTRAL FINISH!

The resulting impact created a pillar of black smoke. It faded away, revealing a panting Ben and a knocked-out, bloodied Jin.

"Phew! Remind me to not do that again if I can help it…" Ben panted as he wiped his brow, the Ultimatrix's green coloring a solid red.

"That was awesome!" Makoto cheered as she raced over and tackle-glomped Ben, resulting in the teen to have his head engulfed in her ample bust, "You were on fire!"

"Bad timing for the joke," Manic snickered.

A black portal appeared beside Jin. A lone figure emerged from it. It appeared female in appearance based on the shaping underneath the purple cloak that seemed to cover the entire body with a black witch's hat and a long white scarf ending in pink tattered ends.

"Who are you?" Sonic pondered, preparing to summon his guitar.

"..." the figure was engulfed in another red portal with Jin and vanished through it, leaving nothing behind.

"Finally, we're back in the city," Manic gave a relieved sigh as various members of the city were bringing in the bodies of the passed on warriors.

"Yeah. But that lady in purple creeps me out. What did she do with that guy?" Sonic pondered before the Hedgefox tapped his shoulder, "Huh?"

"Y…You saved me…" the Hedgefox squeaked out with a small blush.

"It's no problem," Sonic replied.

"You really saved me."

"Uh…Well, yeah. I did."

"A-a-a-ano…"

"?" Sonic raised a brow as she bowed to him.

"I am Roll Cyber Sakurai, last of the Sakurai Branch in the Hyorinmaru Clan. I am sixteen years of age and am a Type-O Blood-type," she introduced herself.

"Uh…" Manic blinked before the four watching the two gawked when the girl suddenly kissed Sonic on the lips…before their eyes widened at the two translucent, multicolored angel wings that seemed to have emerged from her back for a few seconds before fading away.

"…" she stopped her kissing and smiled gently at him, "…And with this kiss, I am forever yours, winged by you and you alone."

"…What?!" Sonic exclaimed.

Tutor Me! Azmuth! Done in BlazBlue Chibi Style

Starring: Azmuth, Taokaka, Carl Clover, Aya Clover (Nirvana), Bang Shishigami, and Ms. Litchi.

The curtain rises up, revealing not Kokonoe's special lab, but a futuristic black and green laboratory that is kept nice and tidy and organized. Standing on a table was a small alien. It has grey skin and seems a bit...frog-like in appearance. His large eyes are green with horizontal rectangle irises while he has six 'whiskers' on his face that go down like a beard and mustache. He wears a green robe with silver bands on the shoulders, waist, and neck.

"Greetings, I am Azmuth, the creator of the Omitrix along with its predecessor, the Unitrix, and this is 'Tutor me! Azmuth,'" the alien introduces himself, "If you humans don't understand, I am a Galvan from the planet Galvan Prime MKII and the planet Primus, where the Ultimatrix's alien DNA is store within the Codon Stream within. Right now, we are in a room I had built specifically to let me speak with you all and not worry about canon things and it's where I go to hide from Myaxx when she has her species' version of a human female's menstrual cycle that involves the tentacles on her face expelling a highly corrosive acid."

"Um...Mr. Azmuth, I think you forgot about us again," Carl noted.

"I was getting to you five," Azmuth frowned, "Now then, these are my two students; Carl Clover and Taokaka. With me are my two assistants: Bang Shishigami on the blackboard and Ms. Litchi, who runs the video files on the subjects we're covering. And there is also Carl's...er...sister, Aya. Though to others, she has been given the nickname 'Nirvana.'"

"Now, Master Carl, my dear Disciple, are you both ready for today's lesson?" Bang asked.

"Tao is ready, meow!" Tao cheered, her ears going up and down with her tail as she punched ahead rapidly.

"Then stop that and we'll begin!" Azmuth snapped as Ms. Litchi started the reel by playing Ben's transformation into Heatblast, "This is the original alien. The very first one that Ben Tennyson transformed into. The Pyronite known as 'Heatblast.'"

"Heatblast?" Carl pondered, "Pyronite? As in 'Pyro,' meaning 'Flame?'"

"Exactly, Carl. Nice use of doing a translation using the Italian Language. In truth, that's the closest thing you can use to translate alien species' titles," Azmuth smirked, "Pyoronites are a special type of alien. They don't have planets that they're born upon."

"They don't?" Litchi pondered.

"Not in the least. Here, look through this telescope I've modified to let you look at the sun's surface without going blind," Azmuth offered as Litchi peered through the telescope and saw Pyronites were on the sun's surface in sun-made structures, "That's right. The Pyronites live upon suns!"

"Mewow! That's so totally awesome!" Tao exclaimed as her tail went off wagging.

"Yes, yes. Of course it is," Azmuth chuckled, 'Tao's excitement on that sure is contagious.' "And back to classes."

Bang drew a Pyronite with and without flames.

"Now then, Pyronites have a weakness for anything liquid and flame retardant, taking greater than one minute to restore their flames depending on the amount and potency," Azmuth explained, "While many Pyronites don't leave their worlds, many will train themselves in close-quarters combat in order to make up for their flames being extinguished during a fight while out on different worlds."

"Can they control fire?" Carl asked.

"Indeed they can. While they can't control the flames of the sun they come from, they're able to manipulate any kind of flames with blue flames being quite difficult due to the power in them," Azmuth explained as Litchi showed a clip of Heatblast absorbing flames, "Pyronites are capable of absorbing any flames near them."

"That's amazing," Litchi noted.

"Truly astounding!" Bang agreed.

"Meow! Tao wants to know what happens when they sneeze! Are their boogers fire too?" Tao asked.

"...Well..." Azmuth coughed as Litchi played a clip of Heatblast with a cold, "When Pyronites get colds, they undergo a stunning transformation. Their flames turn shades of blue which, normally, signify that the flames are at their strongest. But in this case, Pyronites lose their fire abilities and gain ice flames."

"So they sneeze ice boogers!"

"Taokaka!" Azmuth barked.

"Uh oh. The Froggy Man's mad..."

"I'll reprimand you later on comments like that," Azmuth nodded, "Now then...Show me your notes!"

Carl and Tao turned their notebooks in. Tao's notebook was filled with drawings of Heatblast and her, Tao cooking things on Heatblast. There were even a few drawings of Kaka Kittens made from Pyronites in the corners. Carl's was as usual with the notes focusing on the abilities and how they could possibly exist. He chuckled as he noted that Carl was thinking of how Pyronites could be good involving cooking meals.

"I do believe they're hungry," Azmuth noted, "Ms. Litchi, would you like to use the kitchen for your meat buns that Tao mentioned?"

"But of course, Professor Azmuth," Lithci nodded as she left.