Afnaan: "This for you, bro. You and other followers are the ones who I'm eternally great full to. For always lending me a hand whenever I'm feeling down. My heart goes to you, my bro, and all the new and old followers since the last two years. Peace. Thank you."

After their battle of a lifetime, the older brother and mentor Sairaorg Bael and the current champion, Issei Hyoudou, were currently lying next to each other in separate stretchers. Bael, feeling relaxed, lays on his and keeps facing the ceiling. Issei watches as the Golden Lion digs his hands between the back of his head and on his pillow as he gives Issei an advice which he would never forget.

"This time, to her face," said Bael. "Just the two of you. Shouldn't you tell her your feelings again and confirm hers."

Issei listened with diligence.

"If you fail, return back to me. We'll work on a new plan then. And again, today's fight was the best one I ever had. For the record, I think you have what it takes to impress my cousin. Believe it or not, my heart's telling me that she'll fall for your skinny ass.

The Boob Dragon Emperor's eyes were now moist and filled with tears as one by one escaped rapidly. "Sairaorg, thank you very much. I.... promise... I'll work hard for both Rias and I... My harem is my family... my second one but you get it, right? I promise I'll provide a better future for Rias and I!"

Intro:

The Next Day...

Today was Kouh Academy's Halloween festival. The whole building was themed as the "scary zone". The classes had their participants and strollers and other roamers dressed in Halloween costumes like Michael Myers, Freddy Krueger, Jason Voorhees, Trevor Phillips and above all, the holy and the blessed outfit of all; the maid outfit. The breathtaking, the attractive it held...

Also, there was a short cafeteria hosted by the Gremory Peerage. Every students seemed so eager to eat and drink there that there was a massive crowd and everyone had a hard time handling all that. In spite of that, everyone kept their smiles.

Rias just finished taking her and a student's selfie. Student's name was Jo Murayama.

"Here you go," said Rias as she handed her her phone.

Akeno stood in front of a shrine which seemed not too odd of her. Koneko posed as a statue holding a samurai sword as some girls looked at her in shock and awe, amazed that the kitty had a the strength to wield one of the heaviest swords in their school.

Asia strolled around in a pink maiden costume on the left while Xenovia took the right.

Rias and Issei stood next to each other with the big main door behind them.

Rias and Issei exchanged looks and Issei failed to notice the blush that crept up on Rias forehead for a moment.

When the festival was over, all the participants and the attenders went home and it was now night time, Rias was in her office as stood before the window, staring at the cold moon as the cold air passed her by. Her eyebrows were tilted, signifying that she was also hiding something.

Just then, she heard knocking and later footsteps approaching towards her. She looked towards her left and saw her beloved pawn walking in.

"Are you here alone?" asked the pawn.

"I just wanted to come back for a bit," said Rias as she moved away from the window.

Issei then had a flashback.

"Why don't tell her your once again?"

He knew at this point, he had to man himself up. For how long will those everlasting feelings will be burning him inside and out? It was now or never. This woman gave him a new beginning, a new hope to live, and to fight. She was there for him when everyone kept them to themselves.

"Have some courage, self," Issei thought to himself. "Say her name. This time, for sure."

"R-Rias," faltered Issei as he pronounced her name.

Her ears rang as she heard those four letters from her pawn's mouth. She gasped and looked at him surprised, unsure what to do or say at the least moment.

"I...I...." Issei continued. "I'M IN LOVE WITH YOU!" Issei yelled it out, taking Rias by another surprise. "For so long, I've craved for you. I fell for you the moment I saw your pretty face. The tendering kiss when we rode that griff...gri-whatever that was....I always cherished it. Therefore, whether you would believe me or not, I must say it again. I love you, Rias. Will be my girlfriend?!"

Rias was shocked as she faced the pawn with her perplexed eyes.

"Huh? exclaimed Issei.

Rias had tears of happiness streaming down her face. "Finally...finally you called me by name. I waited. I waited for so long just to hear those from you."

"D-Does that mean...," Issei questioned. "I can take that as your answer?"

Rias nods while facing a little down. "Issei. I love you. I love you more than anyone else.

Just as they're about relive that moment again, those nutjobs of a harem decided to ruin by peeking on them and later failing at it miserably.

But before one could say or do anything, there appeared a flash of white light which blinded them all as they had to cover their eyes and when the light disappeared, the whole room was empty.

Somewhere Mysterious....

The lights returned and later disappeared. The Gremory peerage opened their eyes and saw that they were somewhere else. Everyone was shocked. Rias and the others scanned the place which learned was a in fact, a movie theater.

"Hey, you guys got here too," they heard someone coming towards. "Everyone took their fighting stance but stopped at the last minute when it was none other than Sona and company, meaning the Sitri peerage. But they weren't the only one there. There was Sairaorg Bael and his peerage (half-peerage), there was Team Vali and friends, the Three Kings and a Queen Of Hell; Sirzechs Gremory Lucifer, Ajuka Beelzebub, Falbium Asmodeus and Serafall Sitri respectfully.

There was also Archangel Michael and his younger twin, Gabriel and also other angels including Raphael, Amenadiel, Uriel, and Remiel. The entire cast of heaven were present there, just sitting casually on the first row showing no care in the world.

Ophis sat on one of the above seats of the threatre and stared at everyone as she took bits from her cookie.

On the left corner of the theatre room, there was the full Gregory cast sitting there and chilling. Azazel and Shemhazai talked amongst themselves. Rias approached the fallen angels with hope that they can give her the answer she and the others were desperately looking for.

But that's not all. There was also the Gremory parents along with the Sitris. There was Grayfia, Millicas, Ravel along with Riser's peerage (Riser not seen anywhere near them) and the Phenex parents; King Richmond and Queen Rosa. Too add cherry on the cake, there was Yasaka and Kunou and the Hyoudou folks were present.

And to fill the place, there were also other protagonists from other books. Kazuma Suzuki, Tommy Johnson, Jack Marshall, (Y/N) Hyoudou the Dragon Empress, Tony Gremory, Victor King, Raymond (Son of Raynare), (Y/N) Phenex (Riser's Elder Brother), (Y/N) (L/N) the yakuza, Ryder Grey, Terry Hyoudou the biker, Haruto Yamada from Ben 10 fanfiction, and can't forget our favourite protagonist.... Daniel Howard."

"Yo, fuck is this place," said Vali. "I'll find a way outta here."

"Hey, calm down, kid," said Sirzechs. "Try focusing on the situation we are in."

"What's there to speculate? This shit's nuts. I don't care how or why I got her. Imma head home with or without my family. Let's go, Arthur."

"Shouldn't we--"

Before he could finish, they saw the right row in the middle was surrounded by an immense light. When it disappeared, they saw a group of girls from different time and era and it was not known to them who they were.

It was none other than the crossover girls. Mio, Satellizer, Rana, Nami, Nico, Aine, Yurishia, Gertrude, Scarlet, Hayuru, Aldea, Gravel, Claire, Liddy, Erica, Tatenash, Takae, Saki and Shizuka.

"Who the fuck are you all?" asked Issei as pointed fingers at them.

"I could ask the same," pointed Aldea. "But first of all, who the fuck are you all and how did we end up here?"

"Beats me," responded Scarlet, "Don't know, honey."

"This place is weird, don't you think?" asked Hayuru.

"The chick's right," replied Mio. "Something paranormal is happening. I can feel it."

"Hey, who the fuck are you?" pointed Issei as he asked again, but loudly. "Answer my question or your jaws will be dangling by the time done with ya'll. You feel me?!"

"Excuse me," said Satellizer. "Kindly restrain yourself from using vulgar words, Sir."

"Azazel, what's happening to us? Why are we here?" asked Rias at one breath.

"Hey, I'm in the same boat as you all are. Don't go thinking for a second that 'I'm all knowing.'" For once, I'm clueless."

"Boss is right," said Shemhazai. "We're clueless as you are, miss."

The fallen angels who sat with them nodded back.

But suddenly, they felt the floor beneath them shaking and ran around searching for cover. Some of them even ran around the walls, searching for an exit but found none. The angels positioned themselves calmly against the seats and the fallens did the same as angels.

To sum it all up, the older people sat there calmly while the younger people were running around. The Gremory King formed a circle barrier which shielded her and her peerage. The devils formed their own portals, same with the kings and the queen. The Hyoudou parents stood on those seats hoping that it ends soon. Just then, their eyes met with Issei's and the trio looked as if they're a group deers caught in the headlight.

Just then, the earthquake stopped and the theatre was echoing with a laughter so sinister that it shock the very core of some of their spines.

They watched as a man, who was covered in a black flock and with badanges as a mask, was making his towards the crowd from the left side of the stage. He then stood at the centre and stared at crowd who was shocked to see him but that didn't affect him one bit.

"Intruders! Sound the alarm! Dial 911! Isn't that the line?" asked the mysterious man in a venomous voice.

"Yo, can we speed this shit up or what? I wanna hit the Snacks Bar," said a man who appeared and stood next to him by his left. He was wearing a white flock.

Judging by his height, Sirzechs and the others thought the second man was either the man's younger brother or an ally of his.

"He's right, you know? For some of us, we got places to go," appeared a young girl out of nowhere and stood by the black figure's right. "By the way, who're these clowns? Should I kill them? Huh, huh?!"

"Calm down, Menzo," said the man in the middle. "You ain't killing anyone unless I give the order."

"But Alpha," whined Menzo. "It's fun!"

"Not a another word, psycho bitch" said the man on the left. "One word and I'll end you."

"Heh, you couldn't even if you tried, Benno onii-chan," mocked Menzo. "You can't cause you love your cute immoto."

"Shut up, both of you," cried Alpha. "How dare you ruin my big moment?"

"Heh, what else are younger siblings supposed to do, am I right?"

"Yeah, that's right." agreed Menzo as she smirked back at Alpha.

Benno and Menzo were the ruthless younger siblings one could ever ask for. Growing up, Alpha had to raise them both along and had a very hard keeping these two on a leash.

"But overall, welcome to my kingdom," said Alpha, as he looked at the crowd who had their defense up. "In this dimension of ours, time moves very, very slowly. Slower than Grandpa Micks. Such a shame. Enjoy everyone, I've--," Alpha clears his throat before repeating, "We've created this world just for you. Enjoy~"

"What?!" the very same one word came out of all the temporary residents mouths.

"Oh, c'mon," said Benno, you seriously have no idea, eh?"

Everyone nods there head no.

"Why are we summoned her, grey suit?" asked Sirzechs.

"I'll answer for you," said Menzo. "We summo--"

"Hey, line stealer!" pointed Alpha before facing back the crowd. "I summoned ya'll because I wanted to reveal you about a book that I've found and I thought about sharing. Sharing is caring, no?"

This speeches were annoying some of the crowds while some took interest when the mysterious book was mentioned.

"What's the book about, black cloak-san?" asked Issei.

"Oh, sorry. Forgot to introduce ourselves. I'm Alpha Petrovia and that's my younger brother Benno and that's... Menzo, my youngest sibling. Oh, and the book's about an another alternative universe."

This interested the crowd.

"What's it about?" asked Akuja with curiosity.

Alpha and the Petrovia siblings smiled before answering.

"This book focuses on an alternative version of themselves but with a very different outcome. It's about a family of four bringing peace and balance to the world."

"Sounds interesting...and confusing..." said Azazel while the others looked dumbfounded.

"Who's the family?" asked Gorou.

"Glad you asked, old man. This book's about you and your family ."

This shocked the Hyoudous to hear that they were in that book. The parents confused so Issei, Rias and along with the helps of Azazel and Sirzechs, explained to them about the supernatural world.

Of course, the Hyoudou patriarch and the matriarch were both taken in for more shock to see their own turned into a devil and was working for them as well. Furthermore, he possessed a sacred gear. They were, of course, sad and heartbroken that their son hid such an crucial secret from them but in the end, they found it in their heart to forgive him as he was there only child.

This brought a lot of happiness to them and everyone else but Miki realized something about the family of four.

"The family of four," Miki asked. "Is this us? Are you sure?"

"Yes," answered Alpha as Menzo took a look at her pistol. "The thing is...you also have a second son in that story and that he is the twin version of Issei in that story."

The parents were shocked to hear but not too shocked to make the infamous comment.

"Let's just hope that that Issei in that book won't turn out the like the perv ours is."

"Same with our grandchildren, dear."

Issei stared daggers at them but what could he do? They were his parents after all.

The Petrovia Siblings laughed as well.

"Hey, Menzo. Tell them the good news.

"Very well," Alpha onii-chan. "In that timeline, Issei is not and mark it, not a pervert."

The whole crowd except for the crossover gasped in surprise. All of their eyes were wide apart as heard that. Azazel and Issei was more than surprise as he kept repeating 'That's not possible. It can't be' over and over again before Rias had to cover his mouth with her hand.

Azazel stomped the floor in disappointed before sitting back down. He muttered something in Gregory which most of them failed to understand.

Azazel( IN GREGORIAN): "FUCK THIS SHIT! HOW IS IT POSSIBLE?! ISSEI NOT A PERVERT! THAT WORLD IS FULL OF BULLCRAPS"

"Are you okay, Azazel-san?" asked the innocent nun. But she did not get her respond.

"Look at this picture," the crowd looked at and the picture resembled Gorou, who was wearing an armor whilst lifting a large red sword. "This is you. Well, it all started at the beginning of The Great War. The Three Factions-Fallen Angels, Devils, and Angels were going at it to see which race among them was the strongest in The Supernatural World. These battles lead to many sufferings for not only their races but also the humans with other life forms on the planet Earth. Many innocent lives were annihilated, properties were stolen, tortured, and a lot worse. Human lives were more at risk when The Two Asshole Dragons, a.k.a, The Heavenly Dou, had a brawl for all eternity, not giving a single fuck about the lives that are going to be at risk. They shot their attacks wherever they wanted, burnt houses, children, and women suffered, animals like the bird Dodo became non existent due to them. Do you think dinosaurs were extinct because of meteor showers falling from the sky? No, it was all Ddraig. Ddraig couldn't keep his trap shut, so whenever that bastard tomato-colored dragon opened his mouth, large fireballs escaped and stroke those innocent lives. The dragons were a major threat to all beings. Most titans, like Kronika, were eliminated by Albion, thus ruining the balance of time maintaining. The Elder Gods were trying their best to keep the system steady, but something triggered in Ddraig and Albion, causing them to wipe the entire Gods out of existence. In 707 BC, in the Grand Hall of Gregory, Azazel, who convinced the other races to work together in exterminating the Dragons, hosted a meeting. God and Lucifer agreed, but there was a certain person who decided that the dragons should do whatever they want. This was Doris Abrahams, a wicked man who was the exact opposite of his son, Alpha.

"Wait, thought your name was Alpha," asked a confused Akeno.

"Ugh, he's the other one," answered Benno.

"After defeating Doris in a bloody battle because of Boris being all-powerful," Alpha continued. They defeated Doris when his elder daughter, Lauren, revealed the weaknesses of her father and how he was in the league with the Dragons brawling anonymously to Azazel in a letter. Alpha was a young, cunning man who tricked his elder sister into believing that their father was nothing but a tyrant who was just using them. Lauren, being the not-so-smart girl, believed Alpha and did everything he said to her. After The Factions imprisoned Doris, Alpha told Lauren to take over the thorn, saying that she deserved it more than anyone else in the family. Alpha taught her everything about being a queen. After that, Alpha suddenly disappeared without a trace once she became smart enough to lead her nation. Lauren thought that The Factions might have to do something about Alpha's disappearance. So in order to get stronger and exact revenge for Alpha, she trained for decades, then started waging war on the Faction. She killed God and Lucifer in cold blood along with the other Devil Generals except for one, and disappeared in the blink of an eye. When she didn't show up for the next entire year, they signed in relief knowing the typhoon is at rest. Then the factions with their remaining soldiers stopped the Dragons by ending their battle once and for all. This lead to the Oldest Lucifer's General and right-hand man, Devolos, and a magnificent Pure Angel who was God's left-hand and third in command called Angelica to team up in order to end the reign of the Dragons wraith but little by little during the battle period, both found each other irresistible and couldn't take off their eyes from one another, giving out they fell in love with one another during that time. They stopped the dragons by working together, side by side, for a million years because of the Dragons being close to immortal and their exterior being built like hard metals, preventing weapons from causing them lethal damage. But in the end, the battle ended with Devolos burning Ddraig with his mouth while slashing his blind spots while Angelica did a little differently with Albion. Though she could feel her powers dividing, she kept on fighting because of her willpower and after feeding Albion about a thousand light spears, a mysterious chemical inside the dragons exploded with contracts with her light spears, thus ending his life forever. After the battle, however, a mysterious being appeared in front of Devolos and Angelica out of nowhere. The being referred to herself as Queen Of Abraham Nation and gave them two seals and told them that this can help them in sealing the Dragons which turn them into Sacred Gears for humans to use. And then she vanished. With the seals in hand, they both threw those seals on the Dragons' corpses, which sucked them inside. After the battle, they retired from fighting any further, than they're tired of doing the same thing repeatedly. After hundreds of years of resting after the battle, Devolos and Angelica confessed their feelings for one another in 1994, which led to being married to one another one year later. That following year, they disguised themselves as humans and settled in a small village at the time known as Kouh. They did not develop Kouh, and it was more than an empty landscape than a village. Not long after, words spread around the village and that Miki, the disguised angelic woman, was pregnant. Devolos and Angelica then fully sealed their auras deep inside themselves so that no supernatural beings could find them. And by the end of that year, the village turned into a fine town we call Kouh today."

"Interesting, I'm amazed," commented Mio.

The whole crowd was surprised by that. Even Miki so far when she heard that the angels were her siblings at that timeline. What's shocking is that her younger brother's name in this timeline and that timeline matched perfectly. The only difference being is that the (U/Y/N) in timeline is doing time in prison for sexual assaults whereas his counterpart died a martyr.

"At least he's redeemed there," Miki said to herself.

"That he is." Added Benno. "Issei, you're next."

"Yeah, what?" he replied back.

" I got a question for you, my counterpart," all of them heard as they saw a boy who resembled Issei was standing in front of them who was donning punk rock style clothes and that his face was a lot more handsome than the pervert. "Why did you choose this rigid path of lust, huh?" Would it have killed you to wait for the right time to find your woman? Jesus dawg, I can't but pity your ball sacks."

The burn made the real Issei jealous and wanted to attack him back but much to the pervert's surprise, he found himself unable to move from his spot.

"Look what I got, Vali," this time, they're surprised as saw a blonde boy standing in front of them. How about that?"

How did he appear? No one knew. Did they thought about asking? Yes, but denied the urge at the last moment seeing that questions were being answered but not the way they're expecting.

The boy revealed a sacred gear which was same one as Vali's, but more advanced. "My name is (Y/N) Hyoudou, and I'm the White Dragon Emperor from our timeline."

"S-So what gear do I possess in your timeline, huh?" asked Vali.

The blonde nodded his head no. Then he pointed at Alpha.

"Yo, Alpha!" (Y/N) called out.

"What?" asked the pointed man.

"Vali wants to know what gear he possess in our era."

"Is that so," responded Alpha whilst rubbing his chin. "Bad news buddy, but I won't be answering that today."

"What, why?"

"Because..." Alpha continued. "Knowing too much will cause brain cells to fry up and the less you know about your counterpart, the better. I'll reveal that once I deem that knowledge important for you."

"Oh, noted." muttered Vali. "Ya better keep that in mind. I'll ask the next time."

"Whateves," Benno muttered. "Not like we're telling this nigga anytime soon."

"Hey, that's racist!" cried Menzo.

"Do I look I give a fuck?" Benno answered back.

"Alright, enough talk," said Alpha, "Now must ask my audience to quietly seat down so we can make the preparations for your entertainment."

The crowd did as asked. Now interested to see what this guys' deal was. After all, who wouldn't be keen to know about the mysterious book?

Some time passed. Preparations were done. Their was now a door for anyone who needed to visit the restroom. There was also a snacks counter. Now everyone read one by one as the magic book appeared one their hands and disappeared once they finished reading and reached for its next target. Also, for anyone who wasn't interested reading, there was a footage running in the which showed the journey of the Twins.

Outro: