Prologue
Itogami island was a man-made city that was connected and built with gigantic floating-type structures. It was located in the Pacific Ocean 300 kilometers south of Tokyo. It has five main districts, North Island, South Island, West Island, East Island, and a Center Island connecting the four and provides the foundations for the city.
While being a man-made island was great and all, Itogami island was an area that specifically various supernatural races lived.
'Demon Sanctuary' the second name given to the man-made island known by everyone in the world.
Beastman, artificial human, fairy, demon, vampire, and many more.
This particular island was where the Fourth Primogenitor was rumored to reside. The Primogenitor that shouldn't exist in the first place.
The Primogenitor the strongest vampire that cannot be killed. There were supposed to be only three in existence.
Lost Warlord, the First Primogenitor ruled over the country in Eastern Europe known as the Warlord's Empire.
Fall Gazer, the Second Primogenitor ruled over the Dynasty of Destruction around west Asia.
And lastly Chaos Bride, the Third Primogenitor formerly rules Chaos Zone in Central America.
"Hm... and?" Asked the girl in yukata.
"Well, that's it." Answered the young man beside her.
"What? that's all? It was not that uncommon for a rumor like that around here. There is nothing new about that." Said the girl slightly disappointed.
"Now that you mentioned it..." The young man chuckled.
"Now, let's forget about some rumors. What do you think?" The girl asked hopefully.
"Huh? About what?" The guy asked back.
Only to get a pout from the girl. Before she could say anything she heard a passerby muttered something loud enough for the girl in yukata to hear it. "It really suits you."
"Eh?!" She squeaked and flustered.
"Huh, what's wrong?" The young man asked.
"Err, n-nothing?!" The girl stuttered. Despite what she said the girl turned her head glancing behind her only to found no one there.
This island might be called 'Demon Sanctuary' for obvious reasons. However, the ghost still one thing that terrified humanity even though they can't harm humans directly, "H-hey let's walk faster!"
"Huh? Oh, okay." The guy replied.
[BREAK]
"Nagisa, I'm home." A young man said. He was around sixteen years old with dark silver-blue hair and blue eyes.
His younger sister, a ponytailed girl wearing an apron named Nagisa approached him, "Welcome back Kojou-kun, you bought it?"
"Here." Said Kojou, handing the grocery bag to Nagisa.
"Thank you, dinner will be ready shortly. Why don't you watch television or anything in the meantime." Said Nagisa while resuming her cooking.
Thinking about his options while waiting for dinner ready he decides to wait in his room and told Nagisa to get him when the dinner ready.
Laying in his bed staring at the ceiling he closed his eyes. She'll back to the mainland tomorrow.
"Well, it can't be helped. The Queen needs to report about your situation to her higher-ups after two and a half months of observations." A voice answered inside his head.
Kiffa-Ater? Asked Kojou internally.
"Who else, I'm the only one that could hold a conversation with you at the moment, Your Majesty." Said the voice inside Kojou's head stating the obvious. Kojou only could chuckle in response.
"But seriously, aren't you at least going to say goodbye properly to her. She'll be leaving tomorrow right."
"It's not like she's leaving forever," Replied Kojou, "And I still could meet her tomorrow morning."
"If I remember correctly the Queen only said she'll return to the mainland tomorrow. She didn't mention any specific time, for all we know she could leave at midnight." Reasoned the Beast vassal.
"..." After several moments of silence, he sighed.
Thinking back it was started around three months ago the day he was reborn as a true vampire. Despite how ridiculous that sound was, it was still nothing compared to that he was a Primogenitor now. Him Akatsuki Kojou a normal human, your everyday high school student turned into a vampire much less a primogenitor? No one would believe that.
One day out of nowhere she appeared before him stated that she was from some national organization intended to assisted or supported him in any way possible and sometimes to guide him to be more like a vampire befitting his stature. Yeah right, he was still having a hard time with the latter obviously. It was only three months ago he was a human and in less than three months he needs to understand everything about his own situation and condition.
But, strength-wise he feels more powerful. Even though currently he could only use one beast vassal. It was all thanks to the so-called Queen that Kiffa-Ater mentioned. She was also mentioned that his status as the new Fourth Primogenitor might already be discovered by the other Primogenitors and organizations. Thus, convinced him to just give it up if out of nowhere some big-shot blurted out that he was a Primogenitor Vampire.
There goes my peaceful life. Gimme a break...
"Kojou-kun dinner's ready." Called Nagisa bringing him back from his muse.
"I'll be there in a moment." Replied Kojou.
He sighed. He'll see her this midnight after Nagisa asleep.
[BREAK]
Kojou stood in front of room number 700 just several rooms from his and Nagisa's. There was no need for him to push the doorbell button. He was entrusted with a spare key for this particular room by its occupant.
Opening the door he could saw a long raven-haired beautiful girl with pink eyes wearing a sailor model black school uniform around his age pulling a suitcase. It looks like he almost missed her. He decided to trust his beast vassal words was the right choice, after all.
The girl's eyebrows rose by Kojou a sudden intrusion, obviously, she's slightly surprised by the turn of events, but it was not bothering her at all instead she gave him a teasing and playful smile just like most of the time they interact with each other. Kojou made sure to brace himself for what about coming out from her mouth, "Oh my, how could I forget. we haven't do farewell sex yet."
The Fourth Primogenitor spluttered and blushed just like a virgin schoolboy. It appears he still has a long way to go if he wants to survive against her teasing.
"...Am I wrong?" Finished the girl with half-lidded eyes seductively.
Those 'am I wrong?' come from her mouth and her gazes never failed to make his blood boil with desire.
Discarding any reason he approached her and captured her lips with his. Not even surprised by Kojou's action the girl only closed her pink eyes and kissed him back. The two start kissings feverishly.
[BREAK]
"Hm." Nagisa opened her eyes. If someone looks at her they could say for certain there was something strange about her.
She was staring in the direction of a certain room. "They're doing it again," she said with a monotone voice.
She could felt it, it appears there wouldn't be any new beast vassal awaken. Kiffa-Ater is the only one so far. But, even then it was very surprising itself. To think the Sword of Judgement was the first one to awaken. Even more so the harmony between the vampire and his beast vassal already reaches perfection.
"This girl really does a good job." Nagisa allowed a smile plastered on her face. Delighted with the current development before she decides to go back to sleep.
[BREAK]
"Haaa..." Both the raven-haired girl and the Fourth Primogenitor laying on the floor with the girl rested her head on top of Kojou's chest. There was nothing covered their bodies aside from the film of sweat from their lovemaking.
Today is her last day as an observer of the Fourth Primogenitor all her furniture in the room was already sent back to the mainland. Thus, the floor would do. It wasn't like they haven't done it on the floor before. After their post-coital bliss both just laying there enjoying each other company in silence.
Kiriha Kisaki sent by the Bureau of Astrology to observe and guide the newly born Fourth Primogenitor
Those people in higher-ups didn't even bother to put more effort into telling her about her so-called hidden real mission. They know she would catch on quickly on what her real mission was. When they show her a photo of the Fourth they asked, 'what do you think about him?' and 'Is he your type of man by any chance?' ...yeah not subtle at all. They want her as his mistress, his blood partner.
She knows there will come a time when she was assigned to a mission like this.
She did her job as best as she can in less than three months. It wasn't perfect but enough to make the Fourth Primogenitor behave like a proper vampire with a great deal of power when the situation calls it.
As the result, she was a blood servant to Kojou Akatsuki the Fourth Primogenitor now. She doesn't regret this choice even though it was an order from her organization, to begin with. Normally this only means that she couldn't be part of the Bureau of Astrology anymore. However, it appears that the decision solely depends on her now.
She needs to return the Richel Carle since she can't use it anymore. This doesn't mean she was completely defenseless. As the Blood Servant of Kojou Akatsuki, she could use some of his familiar power to a great extent. Right now using Kiffa-Ater power over gravity like second nature to her. Even summoning the beast vassal itself also possible for her.
that way it was important for her to return to the Bureau of Astrology to give the full report personally and help some mission for the Bureau of Astrology despite her new status as a blood servant. She isn't some ungrateful person that simply ignored the organization that raised her.
Moreover, when she was very thankful for the current mission they assigned to her.
"Kojou-kun." Kiriha started.
"Hm."
"I love you."
"I love you too, Kiriha," Kojou replied without skipping a beat.
Kiriha smiled. This was the reason she was very thankful for this mission. She was experiencing love. The two and half months they go through together were very precious to both of them. Short, but still very precious nonetheless.
"I'll miss you," Kojou said.
Kiriha smiled. "Me too."
It's time. Kiriha thought as they get dressed.
[BREAK]
Both were standing in front of their apartment entrance.
"This is it, huh..."
"Mou, enough with that face. I might return sooner than planned and it's not like we can't contact each other."
Kojou takes the cellphone from his pocket. Kiriha gave it to him just when they meet for the first time as a means to contact her it was already encrypted for any form of communications. Though, Kiriha also explained that it was not one hundred percent safe especially if his friend Asagi Aiba was involved. It appears his classmate was a great hacker when the situation calls for it.
Even though in reality hiding things from his other friend Motoki Yaze was more pain in the ass.
"Just make sure you don't give any weird ideas for her to hack that phone okay." Kiriha reminded him as if she could saw inside his head.
Kojou nodded. From now on he needs to be more careful around his blonde friend.
"Well then, see you later Kojou-kun."
And then she departs alone in the middle of the night of Itogami island. It would be a lie if he doesn't worried about her. but he trusts her could take care of herself. Turning into his blood servant also make her far more powerful than before.
When he returned to his room his phone alerted him of a new message from Kiriha. There was a picture attached to it. Kojou opened the attachment first that shows a beautiful girl around Nagisa's age with shoulder-length black hair and dark golden-brown eyes.
"What is this about..." Kojou wandered as he proceeds to read the message.
[Sorry, but I kind of forget to tell you about her (Picture). She is from the Lion King Organization the one I mentioned before. It appears she is the person tasked by her organization as your observer (If you know what I mean, Te he). Truthfully, I just get this information today (Don't know about her name though). It looks like she is on her way to Itogami since yesterday it means chances are she'll arrive today.]
[Bye Kojou-kun, I love you.]
"..."
"..."
"... WHAT!"
An.
Well, I'm not sure about this...