Owari no Seraph and Harry Potter Crossover. AU-ish to a point where the West (America in total) and the East (Europe and Asia in total) are nearly two separate worlds on the same planet. So, pretty much what we have now. Only... turns Hobbit/Lord of the Rings-ish with only certain ones able to leave/enter the Undying Lands. Same thing here, only some can enter/leave the West.

To save myself the trouble, I'll be using first names only. That also counts for Shiho, who we call Kimizuki. Also, I will only go "Shindoo (ex: Ootori/Otori)" and etc. once. Except for Yu/Yuu... unless I feel like it.

Oh. If you don't like Yaoi (boy x boy, M/M, BL, etc.) or just YuKa/MiYu/whatever other pairing names for Mikaela x Yuichiro in general, you can skip that part. It's kinda obvious, so you can just go to the next dot star thingy. Also, Yoichi pairings, however slight, is there too. Don't like? I don't care. I'm tired, okay? I stayed up til three in the morning and didn't sleep at all. During the next three hours I read, at six getting up to type this. And the day before I was typing this. I have every right to be tired.

I know Shiho, Mitsuba, Shinoa, Yoichi, (Mikaela, Yuichiro) and Guren are OOC-ish and feel like side characters. Wasn't my intention, but I'm going with it. I'm trying my best, thus putting Yoichi in the spotlight with (sometimes) Guren. I don't particularly like Mitsuba or Shiho, so... you understand, I hope. As for Shinoa, I love her, but I just don't know how to do her character, despite knowing her personality well. The fact that I ship MiYu probably has a lot to do with character appearances, among other things...

Full Summary: Since the 1792 Triwizard Tournament, Owari no Seraph has been included as the fourth school, thus renaming the event the Quartet Tournament. The schools of Drumstrang, Beauxbatons and Hogwarts owing them many favors, Owari has been held in high regards.

Now it is 1994 and each school agrees to hold the tournament once again. Harry Potter and Yoichi Saotome may have a killer after them, as Harry's name was placed in the Goblet of Fire while Yoichi's task has been tampered with. Owari goes beyond what anyone would've thought, to help their own.

Are they really a military magical school? Is it just a cover for the truth? Who is really Hogwarts' Defense Against the Dark Arts professor, a fraud or the real thing?

X.U.

Chapter I:

End of the Beginning

"Sweet innocence burned."

Year of 1994, Oct. 30th, Arrival of the Schools

"Yuu-chan," The black haired boy didn't even glance at the blonde attached to his arm, exiting the black fiery shadows. It was their (Owari no Seraph) school's form of transportation for the 1994 Triwizard (now as of the last tournament being called the Quartet Tournament officially, keeping the old name out of habit) Tournament.

Both the black haired, green eyed boy and his friend with blonde hair and blue eyes could hear the awed mumbling of the Hogwarts students. Guren Ichinose was in front of them. Shinoa Hiiragi, Shihoo Kimizuki, Yoichi Saotome and Mitsuba Sanguu trailing behind the two boys who were brothers in all but blood. Yuuichiroo Amane Hyakuya and Mikaela Shindoo Hyakuya.

Owari no Seraph wore what seemed to be military uniforms, save for Mikaela who was dressed in white instead of black. Well, they were known as a magical military school.

Guren shook hands with Albus Dumbledore, the headmaster of Hogwarts, School of Witchcraft and Wizardry. "Hello, Albus. How long has it been, a decade?" The old man in blue robes let out a throaty chuckle.

"Indeed, Guren. It has been long. I assume that you and your group would like to get warmed up?" The black haired violet eyed man nodded, ushering inside his students.

"Yuu-chan!" A sigh. "Yes, Mika-kun?" Yuichiro turned his head to look at his brother, only to edge away. His brother had a creepy grin on his face, fangs peeking out from his lips slightly.

"If you get picked, I call half of the reward." The emerald eyed boy spluttered, ignoring his friends snickers. "W-What?! But, it should all be mine if I'm champion!" Mikaela merely shook his head, as if scolding a child.

"Yuu-chan... we share pretty much everything, you know. And I do mean every-" Guren decided to save his subornate from the embarrassment, calling out that they entered the Great Hall.

Owari no Seraph (save for Guren, who went to take his seat at the head table) didn't know where to sit. The table in green and silver held the Drumstrang students, blue and bronze held the Beauxbatons students. The small group of six chose to take their seats at the yellow and black table.

Mikaela immediately started to make chat with a brown haired, brown eyed teen. He said he was a Cedric Diggory, a seventh year. Shiho, Mitsuba, and Yuichiro didn't talk much, choosing to eat in favor of anything else. Only the students of Owari noticed when Mikaela grabbed Yuichiro's hand under the table. Shinoa had a hard time hiding her smirk, but Yoichi didn't bother and simply smiled and laughed. No one question him, for he looked like a kid who would laugh and smile at most things.

"Hey hey hey, Yuu-chan! Cedric, this is my brother Yuichiro. He's real shy, so he doesn't speak much." Yuichiro, at this, set down his fork before flicking Mikaela hard on the cheek. (He sat to the blonde's left, Cedric to his own left. Mikaela had to lean over Yuichiro to speak properly.) "Itai, Yuu-chan... What was that for?" The brother merely gave the other a dark look before going back to eating, closing his eyes.

"You were being annoying. Don't drag me into your chats, buzz off." Mikaela merely laughed, Cedric slightly put off. Were they always like this, so... close?

It wasn't too long after when Dumbledore started to speak, pulling a goblet out of an old chest that a man sat on the table. The headmaster placed the goblet on top of the chest, speaking again how the Triwizard (Quartet) Tournament was meant to strengthen relations between schools. It was said that since Owari helped Drumstrang, Beauxbatons and Hogwarts from a deadly happening that it was decided to have a fourth school. He also said that any student wishing to enter their names into the goblet must be seventeen years old. At this, Guren rolled his eyes. How can being seventeen say that you're able to make your own decisions right?

It was also only a few hours later when a pair of redheaded twins stepped over the age line Dumbledore had placed, causing them to fly back and crash into a heap against the wall. Fine white beards were attached to their faces, thus causing them to be sent to the hospital wing.

Owari watched closely for every student who managed to get their names in, taking note that only Victor Krum from Drumstrang entered his name. A Fluer Declour and three others from Beauxbatons entered theirs too. Cedric Diggory, an Angelina Johnson, and countless others from Hogwarts wrote their names down on slips of paper and dropped them in the blue fire. When no other stepped up, Yoichi, Mikaela, Yuichiro and Shiho wrote down their names. Each time they dropped the slips of paper, the blue fire flickered to a green.

"Shinoa, did Guren say anything about our mission in particular?" Yuichiro asked, sitting next to Mikaela in case anyone decided to change their minds about entering. The purple haired, hazel eyed girl nodded her head, crossing her arms.

"Yes, he said to watch to see if "the Potter brat had the guts" to enter his name. Harry Potter looks quite like you. Just change your hair, add glasses and a lightning scar on your forehead, you're practically twins." Both he and the blonde snorted.

"That's nice," He sarcastically replied. "Me and Mikaela can take the first shift until three. Two or three of you should patrol the school and grounds. I wouldn't be surprised that, since their Defense Again the Dark Arts position is falsely cursed, that one of Voldy-bat's men are here in disguise. Probably polyjuice or something, so we should look out for an adult drinking from a flask constantly."

The other four stared at him, shocked. Alright... maybe having his brother back, however different, was actually good for him. Now that they thought about it, Yuichiro hasn't been as closed off since he saw Mikaela for the first time in eight years. Even more, he actually started to laugh and smile when the vampire wasn't detained. Though he nearly killed himself when he refused to eat (as he, for knowing a vampire and defending him, thus sending him in the T&I chambers), he slowly came back to the real world as Mikaela stayed by him, never once leaving his side.

The vampire smiled softly at his brother and wrapped his arms around the always brooding teen, kissing his cheek. Yuichiro groaned and tried to push him away, but Mikaela's strength was far greater than his or any other human. It was futile. The tanned teen let out a huff, clearly surrendering.

.::*::.

Mikaela slowly licked Yuichiro's neck, succeeding in waking him up when he jumped and fell from where he stood leaning against the wall. His face was red, being seen with just the right amount of moonlight.

"W-Why-" The vampire covered the boy's mouth, leaning over him to look at the goblet. Yuichiro leaned his head back to look to. It was hard to make anything out, being dark. Being upside down, nearly, doesn't quite help that fact.

A man they had seen throughout the day slipped in a paper. The blue fire flickered to a green before returning to a sapphire. It was the DADA professor, "Mad-Eye" Alastor Moody. Mikaela used his own powers while Yuichiro used Asuramaru to keep themselves away from the magical eye. It was truly troublesome, that eye.

Once the man had left, let thudding quietly against the floor as he walked, Mikaela uncovered Yuichiro's mouth, standing. They both frowned. It was what they expected. The Potter boy, who was known to have deflected the killing curse at a year old, was a natural target for this country's villain Voldemort. Someone would, of course, just have to try and kill the boy in a tournament that had killed countless others in the years past.

"It was Harry's name on that paper," Mikaela said at last, voice quiet. Yuichiro retook his place against the wall, hands holding Mikaela's as he continued. "I'm sure. Though I'm not certain on Moody being real or not, the man is out for Harry." Yuichiro nodded. It was what they thought.

Mikaela, hands gripping Yuichiro's, pinned his beside his brother's head. He leaned forward and licked the teen's neck, smiling slightly at the shiver. He placed light kisses on his throat, going up slightly every now and then to nibble or blow on the dark haired boy's ear.

"Mika..." Yuichiro breathed, turning his head so his friend had better access to his neck. "Just do it, you haven't had any in a long time." Without any further prompting, the blonde vampire gently bit into his neck. He sucked slowly, tantalizingly, wanting to be gentle while pleasuring him. Yuichiro moaned quietly, closing his eyes. His arms were wrapped loosely around the vampire's shoulders, who had brought them to the floor when the emerald eyed boy's legs became weak.

The whole process made Yuichiro's brain fuzzy, able to concentrate only on the pale lips attached to his neck. Able to hear only the sounds of Mikaela drinking his blood. It was a sensual pleasure that he craved for. He welcomed it with opened arms, his groin rubbing against Mikaela's. The other moaned, the vibrations making Yuichiro gasp. He shuddered, Mikaela retracting his fangs and licking the wound.

He didn't object when the blonde kissed him, grinding against him slowly. He moaned loudly against Mikaela's mouth, thankful that he wasn't heard as much as he could have been. He slowly pulled away from Yuichiro, resting his forehead against the emerald eyed boy's. They both panted heavily, breaths mixing as they regained their breathing.

"How about we do this some other time, Yuu-chan, in a more secluded place?" Yuichiro nodded. "That's fine." Mikaela slowly got up, pulling the other with him as he did.

"You know, when I said we shared everything, I meant that we shared even each other's bod-"

"Don't even finish that sentence, Mika."

.::*::.

It was the dinner of the thirty first of October when the students of Owari saw each other again, having searched the school from top to bottom for anything. Yoichi had stayed in the owlery, bow at the ready in cace anything were to attack. Mitsuba covered the grounds with Shiho while Shinoa patrolled the school. She got the lower floors while Yuichiro and Mikaela split up after their findings. Mikaela had, because he was the most stealthiest, followed Moody.

"All the man did was drink from a flask before going into his office. I think it's connected to his room, and I got the password." Mikaela here paused, normally calm face contorting into annoyance. His hand, which held on to the edge of the table, cracked as he gripped it. "That magical eye is seriously getting on my nerves. I just want to rip the thing out and-" From then on, the five ignored the brooding and slightly vicious vampire.

Yoichi didn't see anything. However... "Dragons." The others stared at the blonde, purple eyed girl. "There were at most ten dragons in the forest. You never said to not check there. A bunch of trainers, fifty or so I'd say, are probably using them in the tournament." Yoichi, Mikaela, Yuichiro and Shiho began to question if anything more dangerous would be in the tournament.

"I found this disappearing room on the fifth floor. Not sure how many times I walked by it, but when there wasn't a door there, it was. I exited and reentered it, it was completely different. I think it responds to your thoughts." What Yuichiro found was indeed interesting. "Mika said that Moody slipped in Harry's name. He's probably undercover for Voldy-bat." He wasn't the first time he had said that, and it certainly wouldn't be the last.

Once dinner was over, the food disappearing, Dumbledore stood, silencing the hall.

"I hope you all have had a nice dinner. We will now see who will be selected for their schools champion. Once you are called, please head to the room behind here and wait for further instruction." He waved his wand, the candles burning out til only a few remained. Most of the light came from the goblet. The blue fire changed to a deep red, a paper flying out and into the man's hands. It changed back to blue.

"The champion for Drumstrang... is Victor Krum." That was obvious, he was the only only. Nonetheless, people clapped as he walked to the back room. The fire flickered again and again for the next names. "Beauxbatons' champion is Fluer Declour. ...The champion for Hogwarts... is Cedric Diggory." At mention of his name, Cedric jumped in his seat, face a bit pink as he walked to the back room after Fluer.

"And finally, the champion for Owari no Seraph is..." The fire changed colors here. Instead of flickering to a red and back, it was a dark pink (almost black like) as a paper flew out. Catching it, Dumbledore paid no mind to the change and read the name. "Yoichi Saotome." The brown haired, hazel eyed boy, to his merit, didn't get startled as he normally would. Instead, he walked up calmly. Yet, his fidgety fingers that were his reflex gave away his nervousness.

"Now, I congratulate each school and wish you the best of luck in-" The fire, which had not stopped burning, flickered violently between the a deep red and a dark pink, spitting out one last piece of paper before disappearing. The fire had gone out.

Dumbledore unfolded the paper, anger clearly on his face. It increased tenfold as he called out the name. "Harry Potter..." At first, no one dared to move. "Harry Potter! Up here, if you would please?" A boy from the red and gold table stood, walking slowly to the head table. Yuichiro pitied the boy. And-

"Wow, he really does look like me." Mikaela nodded, setting his chin on the teen's shoulder.

The two, without any save for Owari knowing, took to the shadows (literally) with the help of Guren and listened in to the conversation in the back room, standing in the corner by the fireplace behind Guren.

"Albus, this isn't fair! Hogwarts has two champions. Redo the selection-"

"That is not possible, Igor. The goblet of fire has already burned out. It won't be relit until the next tournament."

"Then why don't you just pull Potter out, headmaster? Surely the boy doesn't need anymore attention..."

"I would if I could Severus, but once you put in your name, you are under a magical binding contract to see the tournament through til the end. There is nothing I can do."

"Mister Ichinose, you 'ave not said 'nything. You do not care for the recent events?" At this, the adults and champions in the somewhat small room shifted their heads to the violet eyed man. Guren smirked, running a gloved hand through his hair, pushing it back.

"In fact, Madan Maxime, I do not care. I think it brings more entertainment in all honesty. It's a refreshing change, don't you think? Don't get me wrong, though. It is unfair that Hogwarts has two champions while the rest of us has one. But technically, Owari no Seraph shouldn't even be in the tournament. If we didn't help each of your schools, you probably wouldn't even know about us. If we weren't here, you would still have an extra champion. Is there really any difference?"

Yuichiro and Mikaela swallowed hard to prevent their snickers from being heard. Guren was just that kind of person. If you can't agree with him, he'll force you to see the truth. The other headmasters, save Dumbldore, glared at him with Snape. Dumbledore gave Guren a grateful look.