Chapter I

Yes, yes, I know, I know. Another one. I am sorry! I cannot help it! My mind just keeps coming up with these things! I swear I will try and keep a good pace on the other stories, I just wanted to get this one going first. So yes, this is Black Blood, a crossover of Strike the Blood with a bunch of stuff from Black Lilith and Lilith Mist. It is a harem story, naturally, there will be lots of lemons, and unlike most stories I actually have the an ending prepared, meaning it should not be too terribly long. At any rate, hopefully everyone enjoys the story, and this chapter. Be sure to leave a review if you do.

WARNING: There are lemons in this chapter. Yes, the first chapter. There will be many, many more.

The sun hung high overhead as a young man with short, messy, dark silver hair, blue eyes which were closed at the time, and pale skin wearing a white button-down shirt underneath a white and black hoodie, black trousers, and black and white sneakers sat on a bench, leaning back, fast asleep.

As he slept, a figure walked towards him, annoyed. "Wake up you lazy bum, Kojou!" a voice shouted before the teen, Kojou, was kicked in the knee, jolting him awake.

"Gah!" Kojou grunted as he woke up and then rubbed his eyes before looking around. "The hell…?" he groaned and then turned to the source of his current pain, a tall young woman with long, waist-length blonde hair that coiled near the ends, her bangs hanging down alongside her cheeks, framing her face, along with her fringe swaying to the left above her amber eyes, a single lock hanging down, ending atop her moderately sized breasts, coiling at its end, and a long ponytail at the back of her head with a pink tie, wearing a light tan blazer overtop a white, button-down shirt, a blue, plaid, pleated miniskirt, knee-length blue socks, and brown loafers.

"Geez, I swear all you do is sleep," the blonde grumbled.

Kojou stood with a yawn before stretching. "Sorry 'bout that, Asagi."

"We're supposed to be working on our team project, remember?" Asagi chided.

Kojou blinked thought and looked to the side with a weak smile. "Oh right. Kinda forgot."

Asagi sighed in irritation. "Geez, all you do is sleep all day."

Kojou pointed up and argued, "Well the sun and I don't get along too well. So if you don't like it take it up with that fiery orb."

"Whatever, come on. Tsukishima's waiting."

Kojou nodded in response. "Right."

After the meeting with Asagi concluded, Kojou groaned as he walked down the hall. "Damn… that took way too long… I need more sleep now…"

"I'm surprised you even get up in the morning," a voice muttered right behind him.

"Gah!" Kojou shouted as he spun in shock and saw a girl with fair skin, long, straight, waist-length, black hair, her bangs sweeping to the left above her dark blue eyes and more hanging down, framing her face, ending just above her petite chest, wearing a knee-length, purple and violet, gothic, Lolita dress with lavender frills, dark grey stockings, and dark pink, high-heeled shoes, holding a large umbrella in one hand. "Why do you keep doing that Natsuki?!"

The girl, Natsuki, huffed and leapt up slightly, whacking him in the head with her umbrella. "You should address me as Sensei," she chided.

Kojou rubbed his head in pain. "Gah! Damn that hurts!"

Natsuki then redirected, "So, how have your cravings been?"

"Huh?" Kojou muttered in confusion before realizing what she meant. "Oh, uh, fine… I guess. Long as I don't get too excited I'm fine."

Natsuki rubbed her chin in thought. "Hmm… I see." She then smirked slyly and remarked, "That's surprising with Morino around."

Kojou stiffened and looked to the side with reddened cheeks. "… I… manage…"

Natsuki's smirk widened playfully. "Oh…? Using her to 'handle' things are we?"

Kojou's face turned even redder as he stumbled back. "D – Don't be stupid! I don't do that kinda stuff!"

Natsuki frowned, unconvinced. "A boy at your age? You expect me to believe that? Especially with the way your 'mother' is?"

Kojou stiffened and slapped a hand over his mouth as his nose bled and swallowed the blood pouring out. "Geez… you're lucky I can satisfy the impulse with my own blood. I swear you're trying to make me kill someone or bite down and make a meal out of you."

"This body's just a Thought Projection, so you wouldn't get any blood anyway."

"I'd still get mana. And you'd remember the sensation of getting bit."

"Is something wrong?" a third voice asked.

Kojou glanced back and saw a tall, mature woman with long, flowing black-blue hair ending just past her waist and bright, emerald-green eyes, wearing a pink blouse that was slightly unbuttoned, showing a slight view of her large bust, a long purple skirt reaching the middle of her lower legs with a long slit on the left side going up to her hip, exposing the tops of her long pink stockings, which she wore with purple high-heeled shoes, along with a black sash around her waist that had two, large silver cross-shaped accessories with two portions hanging down, and a choker around her neck with a red jewel. He retorted, "Huh? Oh nothing. Natsuki-Sensei is trying to excite me."

Natsuki twitched an eyebrow and smacked Kojou again with her umbrella. "Ignore him, Yuko."

The woman, Yuko, tilted her head in confusion.

Kojou stiffened lightly at the sight. 'Crap… Hot and cute… not good…' "Um… sorry, I uh… gotta go…" he mumbled before dashing off.

Yuko frowned in worry. "I swear that boy is afraid of me. Am I really that scary?"

Natsuki snickered lightly. "Oh he isn't afraid of you. More like for you."

"Um… huh?"

Outside the building, Kojou sighed as he leaned against a pole and wiped his nose. "Too close… That pipsqueak is gonna pay…"

"What pipsqueak?" an annoyed voice asked.

Kojou twitched an eyebrow and turned around. "Not you, Lily."

Lily, a girl with tanned skin, light blonde hair that reached her waist with two sections tied in pigtails, and blue eyes, whose chest was rather petite, wearing the same uniform as Asagi, albeit without the sweater overtop. Huffing, she rebutted, "Who said anything about me? And why are you out here? Classes aren't over yet."

Kojou flattened his brow and retorted, "That's the pot calling the kettle black."

Lily twitched an eyebrow and growled angrily before storming away.

Kojou blinked and then sighed in annoyance. "Weird girl. Whatever. I'm going home."

Shortly later, Kojou arrived at his home, a simple apartment inside of a large, modern complex. Opening the door, he announced, "I'm ho –" before suddenly getting tackled to the floor. "Gah!"

"Kojou! You're home!" an energetic voice cheered.

Kojou glanced up at a woman with long, wavy, messy, elbow-length, grey-blue hair, her bangs hanging down, framing her face, ending just above her moderate cleavage, and a single point on her fringe between her dark violet eyes, who was wearing a long, white lab coat over a green dress with a deep v-cut, round, frameless glasses, and blue, high-heeled shoes. "M – Mom you're crushing me…"

"I haven't seen you all day!" she cheered energetically.

Kojou grunted as he attempted to lift her off. "S – So…? Need… air…"

"Come on, Mom, it's weird how you're hugging him all the time," a girl with long, dark green hair tied in a high ponytail with a blue ribbon and amber eyes wearing the same uniform as Asagi and the others wore as she walked up to the duo. "I thought you're supposed to be Mimori the genius role model."

Kojou's mother, Mimori, pouted as she sat up. "You're no fun, Nagisa."

Kojou sat up with multiple deep gasps. "Air! Sweet, sweet air!"

Nagisa scratched her head in irritation. "Geez. I'm going to make dinner, okay?"

Kojou nodded weakly. "O – Okay, Sis…" 'She's pissed…'

Later that night, Kojou sat in his room, looking over a wide pile of papers. "Damn…"

Mimori walked into his room slowly and put a hand on his shoulder. "Anything new?"

Kojou sat back and sighed heavily.

Mimori frowned in concern. "I see. So you still haven't found the Root then?"

Kojou shook his head in denial. "No. Not a damn clue."

Mimori sighed and wrapped her arms softly around him. "How long are you going to keep hunting for it?"

"Until I find it."

Mimori tightened her grip gently. "You can't let it consume you like this… But regardless of what you do, I'll support you for as long as I can."

Kojou nodded slowly. "I know. Thanks."

Mimori then smirked and stroked his chest firmly. "Now, how about you get away from those papers for a bit and give me some attention?"

Kojou glanced back at her with a smirk.

The next day, Kojou sighed as he walked down the street. "Tch… why is it so damn hot…? Stupid sun is probable behind it… Wish it would get covered by a blood red cloud or something." However, as he walked, he felt unease behind and glanced back to see a figure trailing behind, attempting to slowly sneak its way behind him, thought failing miserably. Sighing, he simply kept walking. 'I don't have time for this crap…' As he continued, he looked back and got a better look at his would-be pursuer, a cute young girl with shoulder-length black hair, her fringe ending in a point between her golden-brown eyes, her bangs hanging down, framing her face, stopping several centimeters above her moderate bust, wearing the same uniform as Nagisa, a large guitar case on her back. 'That uniform… Saikai? Not only that… she's actually kinda cute. Thought… why is she tailing me…?' His eyes then widened in worry. 'Wait… she doesn't know, does she…?'

The girl hid behind a sign as he stopped and turned to look at her again.

Kojou twitched an eyebrow before continuing to walk and then sprinted as he rounded a corner.

The girl hissed in annoyance and chased after him, finding him gone but then witnesses him go into an arcade. She followed after him swiftly but quickly lost him in the sea of people inside. She attempted to locate him but was unable to. "Damn… I lost him…"

At that same moment, Kojou walked out of the building and sighed. "Maybe she'll finally give up. I hope…" However, he hissed and instantly hid behind a wall as she walked out. "Oh come on…!"

As she walked out, two men exited the building as well and approached her.

The first man, a blonde, walked up to the girl and blocked her path with a twisted smirk. "Hey Baby, where you from?"

The girl huffed in annoyance as she walked past him. "None of your business. Plus, I'm busy."

The second man, a muscly brunette, twitched an eyebrow in irritation and glanced at the blonde.

The blonde hissed angrily. "Come on, Doll, we just wanna show you a good time."

"Not interested. Now go away I'm busy."

Kojou narrowed his eyes as the blonde grabbed her wrist.

The brown-haired man then grinned and flipped her skirt with his hand, exposing her orange and red panties underneath.

Kojou growled and rushed from his hiding spot towards the group.

The blonde grinned as he squeezed the girl's wrist. "All you had to do was say yes. Now it looks like we'll be the only ones having fu –"

Kojou immediately sent an immensely powerful punch to the back of the man's skull, sending him crashing through a nearby wall.

"The hell?!" the second man growled as he stumbled back in shock.

Kojou snarled and turned to the man. "No means no asshole! So leave or I tear you in half!"

The first man stood from the rubble and growled as his eyes flashed red. "Piss off, punk!"

Kojou narrowed his eyes as they turned deep crimson.

"Hey! Let go!" the girl shouted.

Kojou turned and saw the second man holding the girl with a grin, one of his hands on her chest. "… You're both dead."

The girl hissed and swung her leg up high before swinging back, nailing the man between the knees before reaching into her bag, pulling out a large, silver, folded spear the folded out with three large blades and swung it at the man, severing his head from his body.

"You bitch!" the first man cursed before slamming his foot into the ground, causing wind to swirl from the hole and take the form of a massive, ethereal horse. "I'll kill you!"

Kojou huffed in annoyance and raised a hand before a stream of flames shot from his hand.

The ethereal horse ran forward, getting sent back by the stream, but continued charging.

Kojou snarled and condensed a large ball of fire in his hand which immediately shot forward, splitting into multiple smaller orbs, and then hit the horse, exploding violently.

The man's eyes widened in shock. "Wh – What the hell!?"

Kojou narrowed his eyes, pulled both hands back, swirling flames around his palms, and then thrust his hands forward, sending a huge wall of flame crashing forward.

The man had just enough time to see the encroaching wall of fire before it consumed him.

Kojou then sighed and turned to the girl, causing her to stiffen before turning to run. "Hey! Dammit…" He then looked down and saw an object on the ground. "A wallet? Is it hers?" Picking it up, he looked at it curiously. "I should probably try and find her."

Kojou walked through the streets, looking around and sniffing the air. "Damn… there's so many scents… and I can't tell which is hers…" He then glanced down in thought and gulped. "I could… try sniffing her wallet… maybe it has her perfume on it." As he pulled it towards his face, he then slammed it shut. "N – No… I shouldn't…"

The next day, Kojou sighed as he walked towards the school, looking at the wallet in his hand. "Yukina… Himeragi. Class 3-C. That'd be… Sakazaki. Maybe I should talk to him."

Kojou quickly made his way to the faculty room, but found no sign of the teacher there.

Standing in a long hallway, he found himself uncertain of his next move. Sighing, Kojou proceeded to open the wallet and look through it. "I don't want to do this… but if I'm going to find her I've got no choice." He took a deep breath, taking in the scent of the wallet as it filled his nose. 'Her perfume… It's so sweet…' He then looked at her ID in thought. "Yukina… Himeragi… She's kinda cute…" He then immediately stiffened and put a hand over his nose. 'Crap! Not again! If I get horny here I'll…!'

"You really are a pervert," Yukina chided, standing nearby.

"Gah!" Kojou shouted as he jumped to the side.

"Getting off on sniffing a girl's wallet."

Kojou huffed in annoyance. "I wasn't getting off. Your scent is just sweet."

Yukina stiffened, her face red, and stumbled back. "H – Huh?!" She swiftly pulled her spear from its case. "You really are a perv!"

Kojou twitched an eyebrow angrily. "I'm not a fucking Pervert! I was just trying to get your scent so I could give it back to you!"

"… Eh?"

"You dropped it after you ran off before, so I was trying to find you."

"O – Oh…"

"So… here," he muttered.

Yukina attempted to grab it but Kojou pulled it away.

Kojou added, "But first I need answers. And lunch."

Yukina paled and put a hand over her neck.

Kojou twitched an eyebrow and growled, "A burger! A burger! Geez you people are jumpy!"

Yukina sighed in relief and added, "W – Well… y – you are the Fourth Progenitor…"

Kojou huffed in response. "So? I use my own blood for that."

Yukina blinked in surprise. "R – Really…?"

Kojou nodded in reply. "Yes, really."

"I – I see… I… I guess I don't mind…"

"Good."

Shortly later, the duo sat in a burger shop, a tray of food between them, Kojou eating a large burger as Yukina sat, staring at her paper-wrapped burger in bewilderment.

"Am I… supposed to eat paper…?" she mumbled in confusion.

Kojou stopped halfway through a bite and flattened his brow incredulously. "You're joking right? You unwrap it."

Yukina merely sat silently.

Kojou sighed and grabbed her burger. "Here, let me show you." He began unwrapping it before handing it to her. "See?"

Yukina looked at the partially unwrapped burger in consternation. "That's… unusual."

Kojou shrugged and rebutted. "Keeps it fresh and together."

"I've never been to the city before, you certainly have an unusual way of doing things."

Kojou blinked in thought. "… Then… where have you been…?"

"I was raised as an orphan by the Lion-King Organization," she began. "They're the organization who helped establish the treaty between humans and Youkai. They sent me to observe you and kill you if you're a threat." After a moment, Yukina then asked, "So tell me, why are you here on Itogami Island? For revenge? To establish your empire?! O – Or maybe to… spread your… legacy…?"

Kojou sighed and retorted, "I'm here because I live here. Up until a few months ago I was human."

Yukina remained silent in disbelief. "… Eh? That's impossible!"

"Huh?"

"For a human to turn into a Progenitor would require World Class Magic or a contract with a god!"

"The previous Progenitor turned me into the Fourth just before she died," Kojou explained.

"What…?"

"Avrora Florestina. She was the previous Fourth Progenitor. Shortly before she died she transferred her power to me along with her Familiars, the Kaleid Bloods."

Yukina blinked in bewilderment. "Wait, a Progenitor died? Is that even possible?"

Kojou's expression fell as he continued, "Anything that lives can dies… Even she did…"

"I see… what happened?"

"Root."

"Root?"

Kojou nodded and explained, "That's what we call it. It's a massive, evil creature. It possessed Avrora. She was mostly able to keep it under control but eventually she couldn't handle the strain anymore… And then… She died… Or rather…"

"Or rather…?"

"… I killed her…"

Yukina's eyes widened in shock. "Wh – What…?"

"I destroyed her heart… killing her permanently… But it didn't kill Root. It's still out there. And I'm going to find it. And stop it from ruining more lives."

Yukina furrowed her brow in thought. "You're… hunting it?"

Kojou nodded in reply. "Yes. And when I find it…" His fists tightened with rage. "I'll beat it down until it can never hurt anyone I care for ever again."

In another location, in a darkened room, a green-haired maid stood pouring tea before sneezing violently.

A black-haired woman sitting nearby sighed and growled, "I'm not going to let you get me sick. Make it again."

"Yes Anne dearest…"

Kojou sighed as he walked through his front door. "Geez… today was absurd…"

"Oh, hey Bro," Nagisa greeted as she approached him. "Oh, hey, I have a friend coming over later, so try not to be too weird with Mom, okay? I don't want that kinda creepiness."

"Huh? Who?"

Nagisa huffed lightly. "None of your business. Just don't be weird."

Kojou turned, only to see Yukina, and gasped. "What the hell!?"

Yukina turned to Kojou and waved. "Ah, hello."

Kojou pointed at her, angered, and growled, "Why are you here?"

"I'm moving in," she answered plainly.

Kojou flattened his brow in irritation. "… Why?"

"I'm your Observer. I can't let you out of my sight."

Kojou groaned heavily. "I don't have time for this crap…"

Later that night, Kojou grumbled as he looked over the stack of papers once more. "Hm…" he hummed as he looked over two pages that showed various lines on a graph. "Wait… Maybe this? These reports… Maybe… Just maybe… I need more information first. I'll have to ask Asagi." After sitting for a moment, Kojou groaned and then stood from his desk. "Until I can though, there's not much I can do. Guess I'll head out for some air."

The next morning, Kojou sighed as he made his way to school with Nagisa, and Yukina accompanying them.

Kojou groaned and turned to the ravenette in question. "And why the hell are you walking with us?"

Nagisa argued, "Because she's in the same class as me."

"It's my job," Yukina added.

Nagisa blinked in surprise. "Huh? You have a job?"

Yukina nodded with a smile. "Yep! To observe the Fourth Progenitor and eliminate him if needed!"

Nagisa flattened her brow and then turned to Kojou and whispered, "… Hey, Bro, is she a Chuunibyo?"

Kojou raised an eyebrow and then immediately nodded. "Yes. Yes, she is."

Later in the morning, Kojou sighed as he made his way into class and sat down.

Asagi blinked in curiosity before walking up to him. "You seem down this morning."

Kojou groaned and replied, "Let's just say the past few days have been irritating. Oh, hey, Asagi, can you do me a favor?"

Asagi raised an eyebrow and nodded. "Sure, what is it?"

Kojou handed her a flash drive and explained, "These are some energy readings I found. I'm having a little trouble figuring out where they're coming from. Do you think you could track them down?"

Asagi blinked in confusion and then questioned, "Um, sure… Mind if I ask why?"

Kojou sighed lightly and rebuffed, "It's… probably better you don't. Just know it is important to me." 'That I rip Root a new asshole.'

In another location, the green-haired maid pulled a tray of biscuits from the oven before sneezing heavily.

The black-haired woman sighed heavily and grumbled, "How many times are you going to do this? Make them again."

Crying in frustration, the maid answered weakly, "Yes, Anne dearest…"

Back on Itogami Island, Yuko walked into the classroom and turned to the students. "Okay class I have an announcement to make."

Asagi blinked in confusion as she mumbled, "Huh?"

"We managed to find a new History Teacher to replace Mr. Ukuo."

At that moment, a person walked in.

Kojou glanced to the side and gulped deeply as he saw a tall, mature woman with long, waist-length, straight, dark green hair, her fringe cut perfectly straight, stopping just above her chestnut eyes, her bang framing her face, ending just above her immense breasts, wearing squared, half-frame, black glasses, a white, button-down blouse that was unbuttoned enough to show a portion of her valley, with a long-sleeved, maroon jacket overtop, a knee-length, matching skirt with a slit up the right side, long, dark stockings, and maroon, high-heeled shoes.

The busty woman bowed, a calm, stoic expression on her face. "I am Kitae Uehara."

Kojou gulped deeply. 'Th – They're so big…'

Kitae looked around the room in thought before her eyes landed on Kojou. 'So… that's the new Fourth Progenitor? Lady Cara will be pleased, he's rather handsome. Though first I will need to see what kind of man he is.'

Later in the day, Kojou sat at his desk, looking over an assignment, when Kitae approached him. "Akatsuki, correct?"

Kojou turned to her in surprise, gulping slightly as he drank in her figure, before responding, "H – Huh? Yeah."

"May I have a moment of your time?" she questioned, folding her arms under her breasts, causing them to appear even more prominent.

"S – Sure," he replied weakly.

Moments later, the two stood in the hallway, several meters away from the classroom.

Kitae looked over Kojou in thought and then sighed. 'I suppose the simplest test is to see how he reacts.'

Kojou scratched his head in thought. "So what did you need from me Ms. Uehara?"

Kitae took a step toward him, putting a hand on his chest with a smirk. "Please, call me Kitae."

Kojou gulped heavily. "O – Okay, Kitae…"

"You know…" she began gently tracing circles on his chest playfully. "I heard in Japan that many men fantasize about being with their teacher." She then leaned closer to him, her bosom pressing firmly against him.

"C – Can you stop that?" Kojou requested weakly.

"Hm?" Kitae hummed as she leaned down, giving him a clear view down her deep valley. "Stop what?"

Suddenly, Natsuki, behind the two, demanded, "Could you not do that in the middle of the hall? If you must go to a closet or bathroom. And Uehara, I assure you Akatsuki isn't a threat to your master."

Kojou blinked in confusion. "Eh?"

Natsuki turned to Kojou and explained, "Uehara is a Blood Servant of the First Progenitor."

"… Eh?!"

Kitae pouted in frustration. "Way to ruin the mood Void Witch."

Natsuki huffed and snarled, "I already have enough trouble with him being twitchy around Morino."

Kitae smirked in amusement. "Oh? Rather have him be twitchy with you? Biting down on your neck and filling you with aphrodisiac before riding him?"

Natsuki frowned in annoyance. "I wonder what Cara would think of your flirting with him like that."

Kitae stiffened and chuckled weakly. "No idea…"

"For now, try not to seduce him too often. He has reign over his instincts but it only goes so far."

Kojou frowned in annoyance. "Uh… you do realize I'm standing right here, don't you?"

Kitae turned to him in thought. "Yes. Why? Need a drink?"

Kojou sighed angrily. "… I'm going back to class."

Kitae pouted as he walked away.

Several hours passed and Kojou sighed in relief as the day came to an end. "Geez… Finally over." Making his way out to the hallway, he turned when he heard a voice shouting to him.

"Look out!" another student shouted.

"Oh what no –?" Kojou grunted before a runaway cleaning cart slammed into him, knocking him to the floor.

"Oh crap! Sorry about that…" the student muttered as he ran up to Kojou.

Kojou sat up with a growl before realizing he had blood dripping from his head. "Ah crap… Great… Guess I'll stop by the nurse's office."

Moments later, Kojou arrived at the door to the nurse's office and knocked. He waited for a reply, gaining none. Knocking again, he called out, "Anyone here? Hheelllloo?" As the door opened, he grumbled, "Fina –" stopping as he saw the nurse step into the hall.

The nurse, a woman with long, somewhat wavy green hair that extended down to her ankles, several sections flaring out away from the body of her hair, with sparse bangs that parted in the middle of her forehead and two long sections that framed her face, extending down to her chest and narrow, bright lavender eyes, wearing a pink, button-down blouse that tightly hugged her figure, conforming to even the shape of the peaks of her capacious bosom, a short, purple miniskirt, thigh-high brown stockings, red, high-heeled shoes, and a white lab coat overtop walked into the hallway and saw Kojou. "Ah, you're bleeding. Both your forehead and your nose."

Kojou gaped slightly as he looked at her. 'THEY'RE HUGE! OH MY FUCKING GOD WHY IS ALL THE FEMALE STAFF SUCH MONDO-CHESTED HOTTIES?!'

"What's your name?" she asked.

"K – Kojou… Kojou Akatsuki…" he mumbled weakly.

"Right. Come in."

"Y – You…?" he asked dumbly as he walked slowly.

"Hm? My name? It's Yukiko Misuzu." Pointing to a bed, she urged, "Now, sit here and I'll get some bandages."

Kojou did so silently, his mind growing hazy as he looked over Yukiko's lithe body.

Yukiko hummed in thought as she looked at her desk. "Hm… I thought it was around here." She then bent down to look into the drawers, her round ass sticking up into the air, causing Kojou to lick his lips as he watched. "Ah! There it is," Yukiko announced before grabbing a roll of bandages and standing. "So now I just need to – oh my!" she stopped suddenly as she turned to see Kojou standing directly in front of her.

Kojou released a slow breath as he stood in front of her.

Yukiko stiffened lightly and then gulped. "You should still be sitting down until I bandage your head." However, Yukiko blinked in confusion as Kojou opened his mouth wide, revealing his fangs, and then bit down on her neck harshly, causing her to gasp in shock and pain, before a loud moan escaped her lips as she felt arousing warmth spread through her body. 'H – He's biting me…?! That's right… he's a vampire… then that means he's… pumping aphrodisiac into my body… it's… so strong…' "A – Akatsuki…!" she gasped out as his hands reached back, around her waist, and tightly grabbed her ass, his fingers sinking into the soft lumps before kneading them.

Kojou released a low growl as he bit down harder, his hands rolling and squeezing Yukiko's rump, causing multiple loud gasps of pleasure to erupt from her lips.

Yukiko's eyes widened slightly as she glanced down weakly and saw his erection, still stuck behind his trousers, pressing against her. Suddenly, he pulled his teeth from her body and then pushed her to a nearby bed, her body too hot and flowing with arousal to move.

Kojou huffed and growled before undoing the fly on his pants, causing his long rod to emerge.

Yukiko gasped lightly as she saw it standing high. 'I – It's so big…! Is he… going to stick that in me…?' Gulping as he stepped towards her, she tightened her fists and asked with an angry tone, unable to move, "Are you… going to fuck my virgin pussy with that thing…?"

Kojou narrowed his eyes, now glowing bright red. "I am," he answered simply before craning her legs up, spreading them wide, exposing her red panties, hidden underneath the transparent fabric of her stockings. With a huff he grabbed the fabric and pulled roughly, tearing them suddenly. He sniffed the air as small puffs of heat emerged from underneath the fabric, seeing her undergarments stained dark with arousal. "All I did was bite you…" he growled lowly, "and yet you're this wet."

Yukiko huffed lightly and retorted, "Wh – What did you expect, pumping so full of that aphrodisiac?"

"Hm? I didn't use that much," he muttered as he pressed a finger against the soaked fabric, directly over her hole, causing a powerful tremor through Yukiko's body, "so maybe you're just slutty." He pressed his finger with more force, it sinking into her garden, pushing the fabric in with it, and then began twisting his finger inside.

Yukiko gasped and moaned as his panty-clad finger plunged and twirled inside her. "S – Stop it…! If you keep doing that… I'm going to…"

"You're going to cum just from this?" he huffed before pulling his finger out. "Then I wonder how you'll react to this." He pulled her panties aside and put the end of his cock against her entrance, feeling her tremble at the touch.

"H – Hold on, you can't just stick that in, I'm still –!" she argued before Kojou thrust suddenly, surging his dick into her body a third of the way instantly, tearing straight through her maidenhead with great force. Yukiko's teeth clenched and her back arched as she cried out loudly. "C – Cumming!" she shrieked as pain and pleasure coursed through her body like fire, searing her mind with the sensation.

"That it? Hope you're not done yet," Kojou grumbled as her nectar flowed out with blood from their connection, coating his member, before he began moving immediately, thrusting in and out of her hole with force as her breasts flopped furiously.

"H – Hyau!" she gasped loudly before looking at him with shock. "N – No! You can't start moving like that so suddenly! I just came and I'm –!" she protested before Kojou thrust forward harshly, burying himself up the base of his tool, pressing against the door to her womb, stretching her walls with force.

Taking a moment, he shifted his hips from side to side, churning his pole inside her canal, stirring the flesh within.

Her eyes rolled back as the feelings coursed through her body. "Y – You're sho deeph… mah mind can'th… can'th handl ith…!"

Kojou released her legs from his grasp and then gripped her blouse tightly before pulling, shearing the clothing from her body and exposing her immense bosom to his eyes, her tips stiff and hardened. He grabbed her orbs firmly, depressing her peaks with his fingers, shifting and rolling their mass as his tool resumed thrusting, his length plunging in and out of her body vigorously, slamming against the entrance to her womb with each strike, the door loosening at each blow.

Yukiko's voice vanished behind strained gasps and moans, her eyes fallen back and her tongue hanging loosely as Kojou continued slamming and pounding into her. 'H – He's hitting my cervix so hard! Too much more, and… and it'll give!'

Kojou saw her tongue flailing in front of him, taunting him, as he plunged into her. He immediately bent down in time with his thrusts and grasped her tongue with his mouth.

'M – My tongue!?' she shouted in her mind as he pulled and sucked on her tongue in tandem with his hands squeezing her breasts.

Kojou grunted as his fingers sunk into her marshmallows, his hands stopping momentarily to grab her peaks and pull sharply.

"Hyan!" she moaned loudly as the feeling of her breasts being tugged shot through her. 'H – How long is he going to go on!? If he keeps going for much longer, my body won't be anything but his cock sleeve!'

Kojou leaned his mouth close to Yukiko, locking their lips together, before moving his tongue into her mouth, rubbing and tasting the flavor inside, savoring it, pressing and rubbing every spot inside her mouth. His hands continued pulling and stroking her breasts, occasionally stopping to pinch and pull on her nipples. His hips continued heaving back and forth, his hose surging to and fro within her.

'He's stirring my insides so vigorously… his cock is forging its shape into my hole.' Her eyes widened as his pole began to swell within her, his motions increasing to a furious pace, the sound of fluids splashing and flesh hitting flesh filling the air. 'I – Is he… about to cum…? Is he… going to cum inside me…? Going to fill me with that hot, sticky cum. If he does that… my mind will break… I'll be nothing more than his bitch…!'

Kojou growled and grunted as he thrust harder and harder, the shape of his tool gliding to and fro in her flesh before he pulled back, almost exiting her pussy, before surging forth, burying itself to the base, pressing strongly against her womb before bursting inside her.

'H – He's ccuummmmiinngg!' she howled in her head as his essence gushed directly into her womb, filling her insides with his warmth. 'Th – There's so much of it… When… will he stop…?' Her mind quickly went blank before darkness overtook her.

Kojou's body trembled for several moments as he continued releasing into her hole, her belly swelling slightly from the amount, before slowly standing and backing away, pulling himself out to a long gush of spunk from her pussy. He stood silently, huffing, before his eyes slowly turned from red to their usual blue. He blinked curiously before looking ahead and seeing Yukiko's unconscious form in front of him. "… What the hell?!"

Yukiko flinched lightly before sitting up slowly, her face still red with lust. "H – Have you… returned to normal… Kojou…?"

Kojou stumbled back and gulped. "Wh – What did I… do?"

"I think…" she paused with moans, "it's obvious."

Kojou trembled in disbelief. "I… I'm sorry…"

Yukiko frowned lightly. "That won't undo what you've done." She stood shakily and put a hand on his chin with a smirk. "So I expect for you to take responsibility for this. I think I'm going to be addicted to that horrid cock of yours now."

"Y – You're not… mad?"

"Not completely. Fufu, truthfully, I wanted you to take me, I was just waiting for a good chance. It seems you decided to take the initiative though. So, any time you need a drink, or want to give me a drink, you know where to find me."

Kojou gulped deeply and nodded. "U – Uh, right…"

Later in the day, Kojou sighed as he made his way back to his apartment. "What a day…"

"Kojou!" Mimori shouted with glee as he opened the door, tackling him with a hug. "It's so good to see y –!" However, she stopped midsentence and sniffed him curiously. "… Kojou…"

"Y – Yes…?"

"… Why do you smell like other women?"

Kojou stiffened and gulped. "Uh…"

"I don't mind you having a harem, but at least let me approve them first."

Kojou twitched an eyebrow in disbelief.

"… Kojou…?"

"Yes…?"

"It's poking me."

"… Oh boy…"

After a moment of silence, Mimori asked, "Anything new?"

Kojou sat up with a sigh and then nodded with a small smile. "Yes. It looks like there might be traces of Root on the mainland. So I plan on leaving to investigate."

Mimori frowned curiously. "But do you know where?"

Kojou shook his head in reply. "Not yet. The sensors Asagi has access to are stronger, so I'm hoping she can help. So wish me luck."

Mimori nodded in response and then smirked. "Right. Now, how about I wash that foreign smell off you?"

Kojou nodded in response with a light smirk of his own.

Later in the night, Kojou sighed as he made his way down the street looking around in thought. "I should probably stop by Asagi's and see how she's doing. Where was her house again…? Geez… Maybe it was threw the park… Is it left… or right…?"

However, as he walked, a figure suddenly charged at him and swept, Kojou barely dodging the strike.

As he slid to a stop, he turned and saw a young woman with long, straight, flowing, dark violet hair that ended just above her round ass, bangs that were cut straight above her jade green eyes, and two locks framing her face that ended over her voluptuous bosom, who wore a sleeveless, grey-blue bodysuit with black lines that hugged every curve tightly, pointed, armored boots, matching shoulder armor, grey-blue arm warmers with dark grey gauntlets with green jewels atop, long claws of energy extending from the gauntlets. He looked at the woman in thought before frowning. "Who are you?"

She remained silent as large wings of energy emerged from her back before small crystals formed in the air.

Kojou huffed in irritation. "Okay, no answer. Guess I got to fight." He raised his fists before lightning began sparking over his hands.

The woman narrowed her eyes before the crystals behind her glowed brightly. "You're my target. Lilium Excitation."

Kojou tightened his stance in anticipation. "Ah just great. Getting attacked for no reason. Just peachy bullshit."

The woman immediately charged at Kojou, but he raised both hands, causing a disk of transparent energy to appear, blocking her path. He then dashed around and threw a lightning encased fist at her.

She barely blocked the punch with her claws.

Kojou snarled and jumped before sweeping a flame encased leg at the woman, knocking her off balance.

The purplette narrowly managed to plant a hand on the ground and backflip away from Kojou, leaping to a stand.

Kojou growled angrily and demanded, "Why are you attacking me?"

The woman stood calmly before readying the crystals behind her. "I must eliminate you."

"And why is that?!"

"It is my mission." She punctuated her words with a blast of energy from the crystals.

Kojou raised the barrier of lightning again, blocking the shots. "Who gave you orders to kill me for no reason?!"

"None of your concern. Die." Once again she charged, firing more shots from the crystals.

Kojou dodged the shots and snarled in frustration. "I didn't want to do this… But I don't have a choice!" He condensed a ball of pure lightning in his hand before throwing it at the woman, the ball immediately splitting into seven individual balls of lightning.

The woman stopped and barely stopped her path before the balls landed on the ground, stuck, and then exploded violently. However, she stiffened as Kojou appeared behind her. "Wh –?"

Kojou grabbed her shoulder with one hand and craned her neck to one side with the other before biting down harshly, sinking his teeth into her flesh.

The woman gasped before she began slowly swaying in Kojou's grasp and passed out.

As he gently let her fall, Kojou sighed as he stood over her. "You made me do this. Just remember that." After a moment of thought, he groaned and picked her up in his arms.

Kojou sighed as he walked up to his apartment, the woman still unconscious in his arms. "Home ag –"

The door swung open as Mimori burst out excitedly. "Welcome ho –!" She stopped in silence as she saw the woman in his arms. "… Uh…"

"Long story."

"I see… bring her in."

"Right."

Shortly later, Mimori sighed as she sat on one of the chairs in their living room as Kojou wrapped chains around the woman tightly. "So, who is she?"

Kojou sighed as he tightened the chains. "Someone trying to kill me."

Mimori blinked in disbelief. "… Eh?"

Kojou nodded in understanding. "Yeah. Attacked me because she was ordered to."

"… Why did you bring her here?"

"To find out who ordered her."

"… And if she tries to attack you when she wakes?"

"What did you think the chains are for?"

"And if they don't hold?"

"I'll just pump her so full of aphrodisiac that she'll pass out."

Mimori gaped in awe and wiped an errant tear from her cheek. "… I'm so proud."

Kojou raised an eyebrow in confusion. "Huh? Of what?"

"You're learning to use sex as a weapon…" she mumbled proudly.

Kojou twitched an eyebrow in irritation.

The woman trembled as she slowly woke up.

Kojou glanced at the woman in thought. "Huh. She's waking up."

Mimori narrowed her eyes and readied a pistol in her grasp. "Just to be safe."

The violet-haired woman slowly opened her eyes and looked around with a tired groan. "Where…?"

Kojou waved lazily as she looked at him. "Morning. Glad to see you awake."

"You!" she shouted before attempting to move and attack him, stiffening when she noticed the chains around her.

"Don't bother," Kojou suggested.

The woman looked at him in shock. "H – How…?"

"They are meant to restrain my mother. So they're tough. Now it's my turn to ask questions."

She narrowed her eyes angrily. "What…?"

"Who sent you?"

The violet woman remained silent.

Kojou sighed in frustration. "Answer me or I bite you again."

She remained silent for another moment, considering her options. "… The church."

Kojou blinked in confusion. "… Eh?"

Turning to him, she added, "I am Number Seven, Shion."

Kojou raised an eyebrow in thought. "… Seven?"

"Yes."

"Why do you have a number in your name?"

Again she remained silent.

Kojou groaned lowly. "Don't make me bite you."

Shion sighed and explained, "I am a Doll."

Kojou tilted his head slightly in bewilderment. "Well you are beautiful but I wouldn't call you a doll."

Shion blinked in surprise at his response. "No. I am a Doll. We are weapons made to fight demons."

Kojou furrowed his brow in thought. "Doesn't explain why you attacked me."

"You are the Fourth Progenitor. You have no allegiance, no ambition, no territories. You are a wild card and too dangerous to live."

Kojou hissed angrily. "That's the most fucked up bull shit reason I have ever heard."

Shion continued, "There are other organizations aiming for your allegiance or your death. The Black Organization, the Lion-King Organization, the Taimanin, and even the US government."

He flattened his brow and groaned. "… And trying to kill me and make me their enemy is the first thought to cross their mind?"

"You are too dangerous to leave alone."

Kojou growled angrily. "I just want to be left alone to live a normal life!"

"Your power is too strong and too dangerous to be left out of control."

"I want them to leave me alone!"

"Then make your allegiance known. Tell them who you fight for."

"I fight for my family and those I love."

Shion sighed in frustration. "That is not what I meant."

"Well too bad," Kojou retorted.

Shion narrowed her eyes and flexed her muscles, attempting to break the chains.

Kojou sighed in annoyance. "If you're going to struggle I'll bite you and make you relax."

"Then release me," Shion rebuffed.

"So you can kill me? Not a chance."

Shion retorted, "I am in your home and you have already proven your strength, fighting would only drain my power unnecessarily."

Kojou remained silent for a thoughtful moment. "… Try anything and I will have Mimori kill you how she wants to."

"Acknowledged," Shion answered plainly.

Kojou sighed and began loosening the chains around the purplette, his eyes looking over her form. 'You know… on closer inspection… she's pretty cute…'

Shion sat up with a sigh before loosening her muscles with a long stretch, causing her orbs to jiggle slightly.

Kojou gulped in response, attempting to keep his instincts in check.

Mimori merely smirked in amusement.

Shortly later, the trio sat around the table, speaking.

Kojou frowned in annoyed disbelief. "You can't be serious…"

Shion nodded earnestly. "I am. I have determined I am currently incapable of eliminating you in open combat. However, though you have the powers of a Progenitor you do not use them for your own gain. This intrigues me. So I shall observe you until such time as I decide whether you are truly a threat or not."

Kojou sighed in annoyance. "I see… So… will you be moving in next door?"

"No," she answered bluntly.

"Across the street?"

"No."

Kojou twitched an eyebrow in irritation. "Then where will you be living?"

"Here," she answered simply.

Kojou blinked in bewilderment. "… Eh?"

"I will be living with you."

"Hah?! Not a chance in hell! Mom! Say something!"

Mimori blinked in thought as she turned to Shion. "Hm? Oh, welcome to the family."

Kojou face-faulted in annoyance. "Not that you idiot!"

Mimori, ignoring him, raised an eyebrow in consternation. "Oh, doesn't your school serve curry tomorrow?"

Shion suddenly stood up, seemingly excited. "Did you say curry?!"

Mimori turned to her in surprise. "Um, yes. But you need to be a student to eat it."

"I see," Shion muttered before closing her eyes. After a moment, her clothing began to glow before shattering off her body, momentarily revealing her form entirely, before reassembling into an exact match of the female uniform at Kojou's school.

Kojou groaned heavily in exasperation. "… This… is insane… I am surround by insanity… Complete insanity… At least my sister is sane."

At that moment, Nagisa walked into the room. "Hey, I'm ho –" she stopped midsentence as she saw Shion standing by the dining room table. "The hell?" She then turned to Kojou with a frown. "Hey, Bro, if you're gonna bring a whole bunch of girls through here, try to keep it down. Believe it or not, some of us like to sleep at night. You're even making mom tired with those activities."

Kojou began to sweat slightly and laughed weakly in response. "… R – Right…"

Mimori merely giggled in amusement.

Nagisa turned with a huff before walking to her room. "I'm going to go and study. So be quiet!"

"Right…" Kojou mumbled.

Shion tilted her head in thought and then turned to Kojou. "What is she referring to?"

"Sex," Mimori answered simply.

Shion blinked in consideration before putting a hand on her chin. "I see. Hm…"

Kojou noticed her thoughtful expression with curiousity. "What's wrong?"

"I just remembered, there are Geist on this island."

"Geist?"

"Have you not heard of them?"

Kojou shook his head in response. "I don't even know what they are supposed to be."

"I see. They are an artificial demon, a kind that does not have physical bodies."

"I see…"

"So instead, they possess the bodies of other creatures, slowly mutating their mind and body into horrid monsters that exist only for one purpose."

"Which is…?"

"To utilize the bodies of other races to procreate."

Kojou twitched lightly, tightening his fists angrily.

"In addition to fighting the various violent demons, Dolls were partially created to fight Geist. To make this easier, our bodies are designed to be pleasing to them, so that we draw their attention from noncombatants and can kill them."

Kojou frowned in dismay. "… So you're made for them to rape?"

Shion nodded. "After doing so they will be too exhausted to fight."

"… You're suicidal," Kojou retorted with a groan.

"What?"

"You heard me."

Shion frowned in frustration. "I don't know what you mean."

Kojou sighed and explained, "You think that the demons would get tired after being done with you. But what about you? You'd be even worse off."

"Dolls are designed to be extremely durable."

Kojou retorted bluntly, "I knocked you unconscious with one bite. And I was specifically not trying to hurt you. These Geist things won't be so nice. They'd take you, lock you away and," he paused as he lightly poked her abdomen, "make sure that is always full with their brood."

Shion furrowed her brow in suspicion. "You sound like you have knowledge in the area."

Kojou shrugged lightly. "I've dealt with a few wannabe rapist. And my mom tells me things."

Shion almost instantly sent a curious glance at Mimori.

Mimori blinked in confusion. "Hm? Oh, I'm a magical scientist in MAR. I spend most of my days studying the various creatures you hunt. So yeah. He knows you're screwed if you meet one." Mimori stopped in surprise and then giggled lightly. "Huh… I made a pun."

Kojou sighed lightly in annoyance. "Oh boy… Don't make me punish you."

Mimori turned to him excitedly. "… If I keep going you will?"

"Yes. No sex for a week."

Mimori turned pale in horror.

Kojou sighed heavily as he made his way to school, with Yukina and Shion flanking him on either side. "Why…? Why can't I have a normal day…?"

"Because you are the Fourth Progenitor," Shion retorted plainly, gaining an annoyed frown from Kojou.

"Agreed," Yukina added. "Although…" she continued with a frown as she looked at Shion. "Why is she here? I'm your observer, not her."

"I have been dispatched by the church," Shion rebutted.

"I see…" Yukina frowned in mild annoyance. "Well… as long as you don't interfere I guess it's fine."

"Good."

Kojou groaned in exasperation. 'Fuck me… One day just one fucking day!'

Kojou sat at his desk with a heavy grumble of annoyance. "Geez… I need some peace…"

Yuko entered the classroom with her own subtle sigh of frustration. "Okay everyone, we have a new student joining us."

Kojou stiffened and paled. "Please god no…"

Shion almost immediately walked into the classroom and bowed, resulting in Kojou slamming his head against his desk in exasperation. "My name is Shion Akatsuki."

Kojou again bashed his head against his desk. He looked up slowly when he realized that the eyes of the entire class were trained on him. "What?" he growled.

"I am his cousin," Shion clarified, causing the students to all turn their attention back to her before Yuko narrowed her eyes suspiciously.

Later, during lunch, Kojou gaped in blunt awe as he watched Shion finish her fourth plate of curry and rice. "Th – The hell…?"

Shion stopped eating just long enough to look up at him. "What?"

"How can you eat all that?"

Shion put her spoon directly next to his throat like a knife. "It's curry. Do not insult curry."

Kojou twitched an eyebrow in annoyance. "I meant how can you eat and eat and eat without an ounce of fat."

Shion remained silent in consideration. "I am a Doll. All materials that enter my body are transformed into mana for energy. And any fat is turned into useful proteins for parts of my body's development."

"… You mean your boobs, don't you?"

"And ass," she added.

"Ah…"

With that, Shion turned her attention back to her curry, but then suddenly stopped and tensed.

Kojou raised an eyebrow in confusion. "What's wrong?"

"I just felt a strange energy pulse nearby."

"Really? Where?"

Shion remained silent for a moment. "One hundred and five meters west."

Kojou put a hand on his chin in consideration. "Hm… that's the old school building. Any idea what the pulse is?"

"None."

Kojou sighed as he stood up. "I'll check it out then."

Shion turned to him in surprise. "What?"

"I'll check the old school building and see what caused the pulse."

Shion stood and insisted, "Let me."

Kojou huffed lightly in derision. "Who's stronger here? You or me?"

Shion twitched an eyebrow in annoyance. "… I can't let you out of my sight."

"Want me to chain you up again or give you a nice long bite?"

Shion stiffened and backed away slightly.

"Then just be quiet and let me do it."

Kojou sighed as he made his way out to a large, old, wooden building not far from the school with dilapidated walls and broken windows. "Damn this place is creepy. Perfect place for demons to hide."

Making his way inside, Kojou looked around in thought. "Hmm… I don't see anyone…" However, he stopped when he heard an unusual noise from further down the hallway. Slowly making his way to a battered doorway, he peered inside carefully. The first object his eyes landed on were two creatures standing in the room, the first a tall, red, armored, cat-like monster and the other a tall, blue, bipedal, fish-like monster.

"The hell…?" he mumbled as he leaned to the side further and gaped. He first saw a young woman with short, chin-length, dark blue hair, her fringe parting with her bangs, framing her face around her bright green eyes, wearing a similar outfit to Shion, in a dark blue-grey color, her outfit also tightly hugging her well-sized breasts. He then paled as he saw a wall of flesh with multiple tendrils extending out from it, coiling around her and plunging into her body violently. Kojou's eyes flashed red as he rushed into the room. "WHAT THE FUCKING HELL ARE YOU DOING?!"

Cat suddenly turned to him in shock. "What?"

Fish also turned with a growl. "Intruder!"

The woman paled as she saw Kojou. "No, run aw –!" she began to shout before a tendril burrowed into her mouth to silence her.

Kojou snarled with rage. "Release her and your deaths will be quick!"

And thus ends the first chapter of Black Blood. Hopefully everyone enjoyed it. If you did, be sure to leave a review letting me know. If you were confused, unsure, or simply had questions about anything leave a review and I will do what I can to address your quandaries. If you did not like it... sorry? Review if you must, but might I suggest something you actually enjoy instead? Until next time, though, bye-bye!