Hey there, another Asurayuu stuff from me! This time it's not a short one shot, but a series. Hope you guys like it! :3

AU setting: Still in the same world but without the apocalypse. Vampire and Japanese Imperial Demon Army still existed, but instead going on war, they had their own territory since the world goes normally.

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"Hey Yuu-chan, quickly dress up already!" Mika whine at his roommate that still fixing his persistent, sticking-up bed hair.

"Aghh this thing won't go down!" He finally gave up and start fixing his tuxedo again. It took more time with him doing the hair than actually doing the clothing. He thought he want to made his hair neat and tidy, but it's not working at all.

"Don't worry, Yuu-chan! You looks good like that. I bet some ladies going to hit you later!" Mika softly tap his elbow to the black haired boy, that instead gave him a sarcastic look. "Ladies? Who? Shinoa?"

Mika almost burst in laughter. He always been the merry one on the group, and the most friendly one. Yuu on the other side is always bitter and cold, but he actually value his family, though he didn't want to admit it.

"Hei, you brat! Done already?" Someone barge in with a casual, careless smile in his face. The man had a regular built and his clothing resemble more of a military uniform than an actual formal attire.

"Guren-san, we're done in just a minute." Mika throw a friendly smile to the older man, and Yuu also nod with his usual plain face.

"Good, because I don't wanna put my excuse to the nobles just because you brat drag me down. Now let's go." Guren close the door, leaving the two again.

Yuichiro still didn't believe that they're invited to Sanguinem for an anniversary party of the vampire family. Ever since hundred years ago, the Tepes family have been in bad term with the Japanese Imperial Demon Army. The vampire, with their own law, gave shelter, home and job for the poor, in exchange for their blood. The JIDA on the other way dislike their way, and with the new regulation, is now trying to talk with the high ranking progenitor of Tepes family, so they could work on it together.

In all honesty. not even Mika and Guren like the sound of this, since vampires known to look down on humanity. They live secluded from the world, but they exist and control the world from the shadow. JIDA, especially from Hiragi family, however decide to work together to them since they had great ambition to dominate the world. Guren Ichinose actually don't like the plan, but a lieutenant colonel couldn't do anything to oppose the all-powerful words of Hiragi.

So then, the whole member of Moon Demon Company going with Guren to Sanguinem. For this "mission" to subdue the vampire nobles, Guren team is the main diplomatic force, while Shinoa Squad is the main team socializing force. Silly for an army to do this, but this is what their superior ordered. On the whole group, only Shinya Hiragi had this excited bright smile painted on his face all day long.

"Ehh, Yuu-kun... What should we do when we talk to the nobles?" Yoichi asked his friend, and even the pink-haired man behind him seems to be worried. Only Yuu and Mika once live in Sanguinem until someone named Ferid let them go.

"Ahhh I guess you just talk normally. Nothing big even though they're a noble. Most of them is carefree and don't consider human as something valuable, so just do a poker face and don't piss them off." Yuu answered to the answer, and Mika nod. "The nobles is unlike most vampire that we ever meet. Though they see human like a livestock just like the rest, they're more friendly and casual sometimes. Well, depend on the person, really."

"Yep! Just put a wide smile and it's all gonna be alright~" Shinya replied with his usual playful tone, while Guren not even going to give a care. Goddamn Hiragi, what they think to ordered him to do this? At least he go with Shinya, so he's not going to be bored. Shinya is his best buddy, said Guren, though everyone know that their relationship is deeper than that.

"My, my! Then our Yuu-san going to get lots of problem with his stern face!" Shinoa slowly giggling, made fun of his friends as always. "Shinoa! You're mostly the one who would get us trouble with your attitude!" Yuu spat back.

The atmosphere are warm until they entered a big caverns, and the gate to Sanguinem is now present. Guren pass the official invitation to the guard, and even the vampire then bow down to them. Seems reading "Krul Tepes" on the paper drastically changed their view on the human visitor.

"So, this is Sanguinem? Cozy place, I must said." Kimizuki look around, and then Mitsuba poke him on the arm. "Stay on guard. Some report said that there some low-life scum vampire life on the alley, and they feast on human. Though the official rules prevent is, not even vampire follow the rules either. Just like human." The group nod on her note and continue walking down a long bridge until they arrived at the royal palace.

There are so many individual on the place, even on the outside. They all wore a mask, so it's not clearly visible whose the vampire and whose human. That's exactly what the party is; masquerade ball. Each participant of the party need to wear mask for each own, and everyone already had one prepared.

"Okay kids, get your mask on." Guren put a simple porcelain mask on his face while Shinya prefer a beautiful, golden butterfly half-faced mask. Yoichi and Kimizuki both wear simple smiling mask adorned with feathers, Shinoa is using a rather standing-out Pierrot mask, Mitsuba use a monochrome half-faced mask, while Mika wore a white angel mask, and Yuu use a plain black half-faced mask.

Once they get inside, the atmosphere get warm and lively. Nobody know who the vampire and who the human. Everyone mingle and mixed, and for just a day, they take aside their identity and use the mask to cover their true face.

"Yo, Guren!" Goshi greet the team as the whole team is ready, and just waiting at the lieutenant colonel. "Alright, we go by our own to talk with the Tepes family. You kids go have fun by your own." Guren casually wave away, and Shinya followed him right on behind.

Shinoa take a deep breath and try to hide her nervousness. "Well, now we're up to our own. Please enjoy your time socializing, then we'll wait for Guren to call us back. It's probably midnight when they're done, so we had more than six hour to spend freely." She sums their plan as she tune her pocket watch. Everyone nod and tune their watch as well before each go to their own direction, socializing with the unknown.

Yuu is the only one who can't do his job. He think, what he should do anyway? Oh well, at least the food is nice. He just grab few sweet snack and search a place to eat alone. Every seat is occupied, and the hallway is crowded. In attempt to search for a space, he found a stairway to the roof, and as he expected, no one was there.

Well, no one but one.

That night, that time, is the fated day when the two meet.

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Thanks for reading! ^-^

Originally, this and the next chapter is one. But it got into 4K words, so I separate it into two part. 2/3 of the chapter separated into the second chapter, so the next one will be longer. I think it's alright though, as long I didn't put something too long for the prologue.