1 Chapter 1

"At this rate, jerking off to porn is the closest I'll ever get to "doing it" before I go off to college, which means I'll be a virgin forever and die alone," Issei lamented miserably as he stood on a bridge, the sun setting behind him.

"Excuse me? Issei? Issei Hyoudou?"

Issei blinked at the voice, turning in surprise at the distinctly female voice. More than that, she actually sounded happy to say his name instead of disgusted or cautious. And low and behold, there was a cute girl standing before him with a smile. She had mesmerizing blue eyes and light-brunette hair up in a pair of pigtails with black ribbons. Her boobs weren't huge, but still respectable. While he didn't recognize her, she was wearing the Kuoh uniform, so he assumed he must just not have seen her often.

"Yes? Is there something I can help you with?" he asked curiously. Despite his well earned reputation as a pervert, he was a gentlemen in many other respects.

She smiled shyly for a moment as her shoe seemed determined to wipe away a specific spot on the street. "My name is Aza Rabufuto. I'm sorry for asking this so suddenly, but...and I know this is a bit backwards,but...do you mind going on a date with me?"

Issei swore he felt his mind break trying to process that simple yet, to his teenage mind, profound request. Was this real? Was this his life?! No, wait, no time to freak out with a prospective girlfriend right in front of him! "Y-yes, of course!" he answered quickly.

"Thank you!" Aza declared perkily, clapping her hands together. "Meet up after class tomorrow?" she suggested hopefully.

"I'm be there, Aza!" Issei assured with a wide, top-of-the-world grin. "Um, should I walk you home?" he asked uncertainly.

Aza giggled at the question. "Save that for after the date," she answered with a wink. "Don't worry, I don't live far."

"Okay. And don't worry Aza, you won't regret this!" Issei assured before heading off.

"And neither will you, Issei," Aza promised to herself with a soft smile.

Her expression darkened as a scowl marred her face before she turned around with an expectant look.

Right in front of her was a raven haired girl with a rather large chest and a red school uniform, purple eyes gazing at the brunette with suspicion and annoyance. "Well, I wasn't expecting someone to steal my plan from me," the fallen angel mused in thinly veiled displeasure.

"Well, you did force my hand. After all, I can't have you playing with Issei like that," Azathoth answered in completely undisguised contempt,

"Funny, you don't feel like a devil, but you're definitely no angel. What's your interest in his Sacred Gear?" Raynare questioned, debating if she should just stab this tart where she stood.

Aza tilted her head at that, "Sacred Gear?" she repeated with a raised eyebrow.

"Oh don't play coy. What other possible reason would you be putting this act on for that los-" Raynare paused as she felt heavy pressure on her body, accompanying an all encompassing feeling of dread.

Aza's hair darkened mildly as she glared into the soul of the fallen angel. "This is my only warning, Fallen Angel. Your kind's squabbles do not concern me. Leave Issei alone or I will make you regret your very existence," she vowed, turning on her heel without another word, her hair fading back to normal.

Raynare glared at the retreating form, but accepted this as neither the time or place for a battle, leaving to rethink her plans.

Meanwhile

"Wait, so a Fallen Angel was about to approach Issei Hyoudou, and then this...Aza Rabufuto showed up and asked him for a date? Just like that?" Rias summarized with a scrunched brow as Koneko nodded.

"Well, that's no coincidence. Someone else has been keeping an eye on him," Akeno commented with a hum.

"And you're sure you can't identity what she is?" Rias asked curiously.

"She is either good at hiding it or something I haven't encountered before," Koneko answered with a scowl, some of her hair still standing on ends from being a bystander in that encounter.

"But a Kuoh uniform? Does her name ring any bells?" Rias inquired, getting negatives head shakes.

"No, which is strange. A girl taking an interest in one of the Perverted Trio? You'd think that'd make its way around the gossip vine," Akeno pointed out with a sly smirk.

"We'll have to look into that. It is strange if someone has been able to fly under our radar like this and even stranger still if she's unaware this school is under Gremory jurisdiction," Rias noted, tapping her finger on her desk contemplatively. "For now, we should stick with the plan. We have no more idea of what this Rabufuto is planning than we did the Fallen, and they're not likely to just give up either."

"More so when we don't know how dangerous she is," Koneko added in bluntly.

"And how dangerous do you think she is?" Rias inquired with a raised eyebrow.

Koneko paused before reluctantly answering. "I felt like I was a kitten again, who had just been dropped into the sea, and was starring down a killer whale."

"Well, that's not foreboding at all," Akeno commented in jest as Rias sighed at her antics.

"Just be careful tomorrow, Koneko. I know you can handle yourself against a Fallen, but we'll have to play it safe around this Aza," Rias cautioned, getting a dutiful nod from the catgirl.

Timeskip

To say Issei was on cloud nine would have been an understatement. Short of actual sex, this day had been the best thing he ever imagined happening with him. A full day with a lovely, cute girl that was genuinely happy to spend time with him. He probably took a little too much enjoyment rubbing her in his friend's faces when they met at the gate, but Aza just gave a snorting giggle at their dumbstruck expressions; A sound Issei found extra adorable on her part.

"So, what kind of movie do you want to watch?" Issei asked curiously as they stood outside a movie theater, looking over the options. "Kingsglaive, Volcanian, Infinite Burst, Gold?" he read off idly, head tilting as one caught his eye. "Rudolf the Black Cat?" he suggested uncertainly.

"Actually, if you don't mind, I want to see this one," Aza answered with a grin as she pointed to her desired film.

Issei rose a brow and smirked. "You're a monster girl, eh?" Issei joked in amusement. "Shin Godzilla it is."

Meanwhile, a raven and blonde duet spied the couple heading into the theater, one annoyed and the other bored. "So, did you plan on dragging it out this long if she didn't beat you to him, Raynare?" the blonde female asked, wearing a black Lolita dress with white frills, looking completely uninterested in what they were watching.

Raynare shrugged, taking on her true form, sans wings and with a more...conservative outfit in the form of a business suit. "Well, I was going to wait until Sunday, but I was leaving the date up to him," she answered uncaringly. "Why are you here again, Mittlet?"

"Let him live out his fantasy for a day before killing him, eh? Don't know if that's cruel or kind of you," Mittlet responded with a dark smirk before shrugging. "As for me, I needed to stretch my legs for a bit. Being cooped up at base can be a bit suffocating after a while. By the way, you sure she's not human?"

"She's hiding it, but that bitch leaked some power to intimate me," Raynare responded with a twisted smirk of her own. "Huhu, which was her mistake. I probably would have just come alone otherwise. Now I have back up."

"Oh well, they'll get to have a lovely first date and die together. So romantic," Mittlet feigned gushing. "Still, what could she even want with him? She's not from around here, and regardless of how rare Sacred Gears are, seems a bit of trip for this punk, even if we don't know what the Gear is."

"Maybe she knows what it is, somehow, or maybe she's just desperate," Raynare speculated. "I really don't care, it won't matter come tonight."

Timeskip

"And top it all of with a sunset by the park fountain," Issei stated with a hopeful grin towards Aza. "So, how'd I do for my first day?" he asked, trying to sound playful, but clearly nervous with how he scratched his cheek.

"Our first day," Aza corrected with a smile as she held his arm. "And it was fantastic, Issei. This is the best day I've had in ages."

"Oh please, you don't look like you've seen ages," Issei teased, relief rolling off his shoulders from her approval.

"I just happen to have a wonderful beauty regiment," Aza countered, mock posing with her nose up and hand to her chest.

While Issei wouldn't deny Aza was a hottie, the over exaggerated pose was too funny to not snicker at. "Well, I guess this is the part where I walk you home?" he asked with a held tilt.

"Oh, yeah, right," Aza said uncertainly, as if she remembered something that she had forgotten until now.

"Um, if you're worried about your folks not wanting you out with a boy or something, I don't have to walk you to the front door," Issei offered, wanting to help put her at ease even if he didn't know what the problem was.

"No, no, it's nothing like that," Aza promised, biting her lip. "You see-"

"Well, isn't this just sweet?" a sickly sweet voice called, prompting Aza to frown as Issei turned to see a black haired beauty in a business suit, giving them a rather nasty smirk. "A couple of love birds, out at play."

Issei looked confused while trying not to stare at her bosom in front of Aza. "I'm...sorry, Ma'am, is there a problem?" he asked, not recognizing her and knowing he wouldn't forget seeing a figure like THAT out of his porn collection.

"You could say that, Little Boy, for you at least," Raynare mocked sultrily.

"I thought I told you to stay away from him," Aza reminded darkly.

"Yes, well, I'm not fond of taking orders," Raynare taunted with a chuckle.

"Friend of yours?" Issei murmured to Aza, who shook her head.

"She's here to kill you, Issei," Aza informed darkly.

"Wha-?! Kill me?! Why, what did I do to her?!" Issei asked in disbelief, looking at the beauty with renewed caution. Was she some kind sexy hit-woman, luring her targets with her generous assets?

"Oh, it's not about what you did and all about what you have, Little Boy," Raynare declared as her outfit vanished, spreading her wings as it was replaced by her BDSM-style items of black latex.

"Holllllly Shit, that was hot and terrifying," Issei said, taking a step back, but making sure Aza was still at least a step behind him.

"I had hoped that I had scared her off when I asked you out," Aza said with a deep sigh. "I really wanted to wait until later to reveal this."

"Reveal...wait, you're like her?" Issei asked in shock, questioning if anything he knew was even real now.

"It doesn't really matter what she is: you're both about to be dead!" Raynare declared as she formed of a Spear of Light. "And don't think I didn't come prepared!"

All at once, several winged figures burst from the trees, flying overhead with their own spears of light. "Oh shit," Issei muttered in fear, not understanding why this was happening or what he could do to save himself or Aza.

"Issei," Aza spoke up, her voice surprisingly comforting and unafraid. "Trust me, it'll be fine."

"A bit overkill, eh, Raynare?" Kalawarner called out from the sky.

"If it gets the job done, then don't complain," Dohnaseek chided gruffly.

"Quiet, we need to let the loooovely couple have their final moments," Mittelt said with a vicious smirk. "Kidding! I just wanted the first throw!"

With that, all four spears were thrown and unleashed.

At Aza.

"Aza, no!" Issei called out, rushing to push her out of the way.

Until he wasn't. Shouldn't. Couldn't.

The sky vanished, filled with swirling and infinite blackness as the earth trembled. The spears halted before they ever touched her before dissolving into bright dust.

"W-what is this?" Raynare said as she tried to fly, only to find her wings wouldn't move. Her body wouldn't move. Only her head.

It was much the same for her comrades, frozen in midair.

"Little flies should mind who they might be swatted by," Aza's voice came without her actually speaking, echoing throughout the area. "Now be vanished into the Abyss!"

"W-what's happening? Le-let me go!" Mittelt screamed as...something grasped her out of the air. The air around her twisted and deformed to reveal a tentacle, made of ancient gnarled skin that was covered in mouths and thorns. The tendril's length went into a black distortion in the air, a portal that it was dragging her into.

The other fallen soon found themselves in the same situation, struggling against the otherworldly appendages. "What are you!? Who Are You?!" Raynare cried out with terrified eyes as she was given the roughest of treatment, the limb contorting around her wings, as if to break or even tear them from her, before being pulled away from reality itself.

Aza ignored her as she turned to Issei, who had fallen to the ground while staring up at her with scared and uncomprehending eyes. "Issei," she called, her voice echoing throughout eternity.

For Issei could not see the Aza before him. All he could see was the great, eldritch mass floating through space. Countless limbs, infinite jaws, and a terrifyingly massive maw at the center.

"Issei," Aza called again, softly. "I'm sorry, I didn't want you learn this way. I wanted to ease you into it."

He didn't answer, didn't move. He wasn't sure he even existed anymore save that she was addressing him.

She knelt down, her hair brightening as her face softened sorrowfully. "I promise, I'll help you through this. And if you want...I'll even let you forget me."

Issei blinked slowly as he felt...whatever he had felt, creep back beneath the visage of Aza. He didn't say anything, shock still freezing his mind.

She smiled, stroking his cheek comfortingly. "Allow to introduce myself more honestly: I Am Azathoth. And I love you, Issei Hyoudou."

Naturally, Issei only had one response left available to him.

He passed out cold.

Author's Note:

And there we go, my first DxD chapter. Now, to clarrify:, this story is based on thte idea of running Issei through one on a my own CYOAs, a Lovecraft-based one called "Love Azathoth." Reading it is not required, but does have pictures of Aza's human form, among other.

For those out of the know, Azathoth is the "Blind Idoit God" and basically the most powerful Eldritch God. And yes, that has taken human form after falling in love with Issei. She is not the last Eldritch that will show up.