Youkai Academy.
A high school made for Monsters/Youkai.
Here they go through their years and classes for one specific purpose: To learn how to be human. How to keep their powers hidden, how to act/understand humans, all so that they can eventually live freely in the human world. To ensure they are able to do this without interruption, a barrier was erected around the site over two hundred years ago. This barrier keeps the world hidden from the human world, prevents any human from entering without an invitation, and allows for the Monsters to travel all over the Youkai and human world.
This barrier, created by the Three Dark Lords, has withstood the test of time for years. Thanks to it, Youkai Academy has managed to remain a safe place for Monsters to come and learn how to be human.
It has remained intact for years.
There are few forces in the world that can hope to pierce it.
Which is why, when a large blue rift opened in the air a few miles from Youkai Academy, Nurari, the Nurarihyon Bus Driver of the Academy, immediately made to tell the Headmaster.
One of the Three Dark Lords that sealed away the Shinso Vampire Alucard, Tenmei Mikogami.
And, once the message was relayed, the two immediately made their way to the location of the rift.
"Woo-Hoo!"
Dante yelled as Cavaliere rocketed out of the rift. He pulled at the motorcycle's break lever, the blades under the wheel's screeching as they ate up dry earth. He pulled to the side as it skid to a stop a few feet away from the rift. The moment he stopped, Vergil hopped off the back of the vehicle. The older twin's hair had come undone from the ride. It fell around his face in a mirror of his younger brother's hair style.
"That look suits you better, Verg," Dante said as he dismissed Cavaliere. The weapon dispersed back into Dante's personal arsenal space. There it awaited alongside every other weapon he had accumulated over the years. Waiting to be used once again. He stepped over to his brother, leaning in with a hand on his chin, "Hmm, yeah. You should keep it. We could do that thing where we switch places and see if anybody could tell the difference."
Vergil huffed, one hand going to his forehead. He pushed his hair back and it swiftly returned to its usual, slicked back look. He focused his attention on the rift he had made, watching as the blue energy swirled within. It remained floating in the air, a blue tear in the fabric of reality that lead to a now destroyed Demonic Tree.
Then, moments later, it winked out of existence.
"Good. None followed us," Vergil nodded at the rift's disappearance.
Dante turned to the empty air where the rift used to be, "Hmm, really? Guess that means we really did bring down that overgrown weed. Though I doubt that'll dissuade any demon and devil from trying to mess with the human world."
"If they do, then it is none of our concern. Unless they decide they wish to reckon with the Sons of Sparda," Vergil responded, his voice stoic and cold.
"Maybe it's none of your concern," Dante pointed an accusing finger at Vergil, "But that's cause you're not the one who makes a living off killing demons for people. And after what you did for our first family reunion, business had been booming. Well it was. Until you came back."
Vergil shot a sideways glare at Dante. He opened his mouth, but held his tongue for a moment. He stared his younger brother in the eyes...then turned away before replying, "I see...I...apologize...for that."
Dante's eyes went wide. He shook his head in disbelief.
Then a smug smile came over his face.
He put a hand over his ear and leaned closer to Vergil, "What was that, big brother Verg? I don't think I heard you correctly? Did you just say 'I'm sorry for summoning that tower and the tree, messing up the human world for who knows how long?' Is that what you just said?"
Vergil frowned then turned away from his brother. He bit down the urge to smack Dante with the Yamato and focused on examining their surroundings. He only spoke up after his observations were complete, "Believe what you wish. But I suggest you forget any hypothetical ideas you may have, and instead take a look around us."
"What's that, Vergil?" Dante continued, though he did turn to look in the same direction Vergil was looking, "Are you too embarrassed to admit that your younger brother Dante is right? Well then ju-"
Dante's response died in this throat as he finally got a look at where the rift had dropped them.
When he did, he gave voice to exactly what both he and Vergil were thinking.
"What the hell is this?!"
He opened his arms out to wave at the grim environment they found themselves in. The ground was cracked, dry, and covered in sand. The few bits of vegetation that grew from it were gnarled and black. The trees had no leaves, their top halves had been ripped off, and numerous crows sat upon the intact branches. While the sky above looked normal, they could both see a storm raging in the distance. Alongside a building that was silhouetted against the sky a fair distance away from them.
Dante looked around at their current location. Then he turned towards Vergil. Raising an eyebrow, he asked, "This isn't our world, is it?"
"It likely is not," Vergil answered, his focus on the building in the distance.
Dante groaned. He placed a hand behind his head, "Aaahhh, for...great. Looks like the kid's gonna need to hold down the fort for a bit longer. Gonna make another rift for us to jump through?"
Vergil raised the Legendary Sword Yamato up. He hummed, feeding some of his demonic energy into it. An azure glow began to suffuse the blade for a moment. Then he looked up and around at their surroundings.
He hummed again, "Interesting."
"What? Don't tell me you can't do it? Don't tell me you can't 'concentrate' when we're not being chased by a crumbling weed?"
"It is not that," Vergil stated as he turned towards his brother, "This dimension...I feel that it is rather far from our own."
"Huh?" Dante tilted his head in confusion.
Vergil rolled his eyes, dreading explaining this to his brother. He pinched the bridge of his nose before beginning, "This is merely conjecture on my part, but I believe that there are dimensions other than our own. And the Yamato could open up pathways to them...however, even a blade such as this has a limit. That being distance and the amount of differences between the worlds."
He unsheathed his blade and pointed it towards the east as far as he could. Then he did the same with his scabbard, but pointed it towards the west, "If two dimensions are an extreme distance from each other, then the differences between their worlds will be significant and obvious."
He brought his scabbard and blade together, the end of his scabbard meeting the tip of his blade in front of his chest, "And if they are close together, then the differences will be miniscule and subtle."
"Hold up, let me guess," Dante held up a hand, "The world we're in right now is one that's totally different from the one we know?"
"It is very likely."
"Which means that you can't just create a portal, cause the Yamato's power can't reach that far even if you put your all into it?"
"...As loathe as I am to admit it, yes."
"And if you used Sin Devil Trigger to do it, you're just as likely to overshoot us way beyond home and into a completely different world?"
This time Vergil simply nodded.
Dante's hand met his face. He moved it towards his head while sighing, "Great. So, we're stuck here?"
"Not exactly," Vergil sheathed his blade then turned towards the building in the distance, "There is one way...but as of now it is merely a theory. I will need time to research and investigate certain topics before I can give a definitive answer."
"And how long will that take?"
"That depends on whether that building has a library or not. Let us get moving," Vergil started walking towards the silhouette in the distance.
Dante watched his brother walk off. Then he shrugged and started following behind him. He placed his hands behind his head, moving at an even pace with a grin on his face, "Ah well. Guess that means we get to continue this brotherly reunion of ours for a bit longer. Though, it's too bad you won't get to spend some more time with your son, huh?"
Dante tap a fist on Vergil's shoulder. The older Sparda Brother remained silent but his gaze turned towards the sky. It was surprisingly normal with white clouds rolling along through the air. A frown came over his face as he thought about how he left his son behind. He sighed before shaking his head, "That...that is true."
He went silent after that.
Dante was as well.
Then he clapped his hands together, "But, know what you can do?"
Vergil looked at Dante with a raised eyebrow, "What?"
"Tell me how you met his mother."
Vergil smacked Dante across the face with Yamato.
Dante stumbled back a bit but kept a smug grin on his face. He easily caught up to the Vergil, who was starting to fast walk down the path they had chosen.
"Ah, come on, Vergil!" he said while moving from one side of Vergil to the next with is arms out wide, "Gotta give your little brother the dirty details? What kind of woman was it that managed to catch the eye of my ever aloof older brother?"
"As I said, that was a long time ago," Vergil sped up, his grip on the Yamato tightening as he walked faster, "That is all you need to know."
"Like hell it is! I ain't gonna pass up the chance to learn the type of woman that my brother likes?" Dante stated proudly, "Now spill it, what was she like?"
"Be quiet!" Vergil slashed out towards Dante.
Dante ducked under the swing and appeared on Vergil's left, "On a scale of one to ten, how pretty was she?"
Another slash, this one Dante jumped over. He flipped onto Vergil's right and turned around. He pointed twin finger guns at Vergil as he spoke, "Was she the fiery type? The quiet type?"
Another slash.
Dante slid around to Vergil's front, "Was she a brunette? You seem like the type of guy to like brunettes."
Vergil scowled and put his hand on his sheathed sword. He fed demonic energy into the blade, its sheathe sparking with a bright blue as he spoke, "Be silent!"
His strike moved faster than the eye could see. A bubble of distorted space appeared where Dante stood. From within multiple slashes appeared, all moving faster than sound as they made to rip their target apart.
Dante's body glowed red before he "Tricked" out of his brother's Judgment Cut. The attack tore up the ground, creating multiple large slashes in the dirt road. Dante landed with a small hop. He chuckled at his brother, "Ah, come on, Vergil. Can't you tell I'm just having a little fun?"
"Your 'fun' is annoying. And distracting. We have company," Vergil stood up while dusting some dirt off his shoulder.
"Yeah, yeah, I know. They've been watching us for a while. Figured we'd give them a bit of a show," Dante shrugged before turning around. He brought a hand to his mouth and spoke, "Come on out! If you don't, my brother here's gonna get mad. And then he'll do that to you too."
He jerked a thumb at the lines that had been carved into the ground. A few moments later, a thick mist surrounded the Sparda Brothers. From within it stepped two humanoid figures.
One was a skinny male wearing a dark blue bus driver outfit. The upper part of his face was hidden beneath the lip of his hat. The only visible parts were his glowing yellow eyes. His mouth seemed to be fixed into a permanent smile while a cigar hung smoking between his lips.
The other was a man in a full priest habit. A rosary hung from around his neck, with the rest of his defining features hidden by his outfit. His eyes glowed the same yellow as the first man's, with only his smiling mouth being shown to the world.
The two walked side by side, stopping a few feet away from the Sons of Sparda. Vergil moved up to be side by side with Dante. Both sides stared each other down for a few moments. Dante was the one to break the silence.
He put a foot forward and gave the two stranger's a cocky grin, "Hey there! Don't suppose either of you know where the nearest bus stop is? We're a bit lost and could use some directions."
"Lost you say? That's strange. The barrier should prevent people from getting 'lost' around here," the white robed man said, his voice both old yet mischievous.
"Ah, well that's just the thing. We have a knack for getting into places that we really shouldn't. Ain't that right, Vergil?" Dante glanced at his brother.
Vergil took a step forward, one hand lifting his blade up, "We are not here to play around, demons. If your goal is to take our lives, then reveal yourselves and let us begin."
There was silence between the four for a moment.
Then Dante placed a hand on Vergil's outstretched arm. He pushed it down while shaking his head, "Now, now, big brother. We don't start pointing our weapons at everyone just cause they're demons. If they don't attack us first."
He turned back to the newcomers, ignoring the glare Vergil sent his way, "Forgive my brother. He's a bit trigger happy. Now, about those directions."
The two men looked at each other. The white robed one waved a hand towards the twins, "They know what we are?"
"Indeed. Yet...I can't tell what they are," the bus driver said, pulling his cigar from his mouth. He stared at the brothers and hummed, "They look human. Smell human too. But...there's something else there. Something about them that's different. Different from any Youkai I've seen."
"That's surprising coming from you."
"Well, as old as I am, I haven't seen everything yet."
Both men shared a wistful and knowing chuckle. Then the white robed one stepped forward, "While I am not sure how you know what I am, I can tell that the both of you are powerful. And, believe me, the last thing I wish is for this meeting to come to blows. Thus, I have a suggestion."
He turned and pointed towards the building in the distance, "That is Youkai Academy. A school for Youkai and Monsters to learn how to live in the human world. If you are heading in that direction, then my associate and I can lead you to it. He happens to be the bus driver for the Academy."
"It is a pleasure to meet you both," the bus driver said with a short bow.
Dante stepped away from his brother. He placed a hand on his chin in thought, "Hmm, sounds like a good deal Yellow Eyes. But I need to consult with my brother before making a decision. What do you think, Vergil?"
Vergil frowned at his brother. Then he glanced sidelong at the two strange men. He gripped the Yamato for a moment...then he let it disappear into his own storage.
"Fine," he said, turning to face the two men, "We will accept your offer. However, know that any hint of subterfuge will cost you your lives."
Dante shrugged at the two men, "Best you're gonna get outta him guys. Lead the way!"
Dante pointed towards the Academy. The two men turned and started to walk into the mist. Dante and Vergil made to follow them.
And thus did the Sons of Sparda arrive at Youkai Academy.
And thus would their presence would change this world's fate forevermore.
So, due to what others have said, I will fully explain exactly what I meant by the Shipping statement. Neither Dante nor Vergil will be shipped with ANYONE. They will remain single throughout the whole story. Granted, other Characters (Non-Canon/OC/Canon) may gain an interest in them. But it will never be reciprocated, nor will it ever go beyond a crush.
As for Tsukune and his Harem, they will still exist. Tsukune will have his Harem. I'm not changing that. Mainly cause I hate stories where one of the major plot points is ruining/changing canon relationships. Especially with crossover characters that are presented as "better" than the canon one. However, I will not be planning to "push" Tsukune towards a specific girl. None of his Harem are getting any special treatment from me. So, any and all lovey-dovey focused stuff between Tsukune and his Harem will remain mostly the same as canon.
Now the actual relationships between Tsukune and his Harem...that's probably gonna change. Cause Dante and Vergil's presence, while it won't be there all the time, it will certainly effect Tsukune and his Harem. Changing who they are as people. That much I can say for certain.