Thank you for all of you that fav and followed my story. I planned on writing the crossover for a while, since the release of SMT in November, but I never got into writing it. Now since it's almost a few months after the game released, I figured "Hey, it's a good time to write the damn thing since people would've played and completed the game. And here we are

Addressing some user review

ENDDRAGON369: About Susanoo, I have plans for hi but I really don't have any plans on doing Shinto deities in the earlier chapter.

Jasminephyco100: Thanks, I will keep writing this fic if i have time and it's within my ability

Chapter 2:Enter Hyoudou Issei

Hyoudou Issei was having a great time. A really great time. He had just been on a date with a cute girl…

A girl… who coincidentally was his first girlfriend ever.

'Oh man, Matsuda and Motohama would be so jealous.' he thought.

The perverted trio of Kuoh, the bane of all girls' existence at Kuoh Academy, which the members consisted of:

Matsuda, the proclaimed "Perverted Baldy" and "Sexual Harassment Paparazzi". Matsuda has shaved hair and normally wears his Kuoh Academy uniform with an unbuttoned blazer. He's called the "Perverted Baldy" because of his obsession with photographing female body parts and has been caught multiple times with perverted photos of innocent Kuoh Academy girls.

Motohama, the "Perverted Glasses" and "The three Sizes Counter". With a single glance, Motohama can determine every single girls' three sizes, and he has complete data of every girls' three sizes in Kuoh Academy.

Finally, we got Hyoudou Issei, the proclaimed "Harem King" and "Lover of breasts". He dreamed of making a harem. Filled with boobs, whether big or small, he likes them all.

He had been asked out by a cute girl on a date a few days ago. Her name was Amano Yuuma. Issei couldn't believe it when it happened. A girl with a beautiful body like her was asking him, the most famous of the Perverted Trio…

She's so cute….. he thought.

He thought that it was a prank, a grand scheme, but no, it was real. He spent the whole day going around Kuoh with Yuuma, spending time at the aquarium, going to the mall, enjoying lunch together. Now, as the sun was close to setting, the city was dyed in an orange hue as the black haired girl led the brunette teen to the water fountain in the park.

"It sure was fun today." Yuuma said as she walked close to me.

Wait, what are we doing? A kiss? Are we doing the naughty? Kuh… I should've bought the book Matsuda told me the other day!

"Hey, Ise-kun…" she asked.

"What is it, Yuuma-chan?"

"Before we end our date, can I ask of you something?" Tilting her head to the side cutely, a twinkle can be seen in the girl's eyes as she enjoyed Issei's flustered expression.

What's she asking? Am I well ready for this? C'mon, Issei, you can do it!

"Yes, what is it, Yuuma-chan?"

"Will you…"

"Yes?"

"Will you die for me?"

What was that? Issei's mind blanked out after hearing such words.

"Huh? I think I heard that wrong… Can you uh… repeat it again?"

She was laughing maniacally. What's wrong with her?... Issei thought, his mind still refusing to accept the reality laid out in front of his eyes.

"I said, will you die for me?"

"That's funny, Yuuma-chan,"

FLAP

Black wings appeared from her back, then flapped her wings to float in the air and then dropdown.

What is that? Some kind of angel? No…. it can't be true. Is this some kind of cosplayer joke? The one where they say "Surprise you've been fooled" after?

"It was fun y'know. The short time I had with you… it was like playing house with a little child."

Then something manifested in her hands. It looks a spear made of light.

Then she threw at him, and the light spear pierced Issei's stomach. He tried to scream in pain, but no sound came out. Black spots appeared in his vision as he took in the sight of blood gushing out from the wound. He can feel the cold seeping into his body like Death's grasp.

"Sorry. You were a threat to us, so we decided to get rid of you early. If you want to hold a grudge, then hate the God who put the sacred Gear inside you." Raynare said, almost like an afterthought as she looked at the dying boy.

His consciousness started to fade away, but he faintly heard the sound of someone's footstep.

"Get ou-" the words didn't come out of his mouth. He was tired, real tired.

As fatigue overtook his mind, all he saw was red, crimson red.

All I can think of now is her, Rias Gremory. If I was going to die, at least it was in of the arms of a beautiful girl. He thought

"So you were the one who called me…"

Suddenly, someone appears in front of him.

"Looks like you're dying. Your wound….. oh my, it looks like something interesting is happening to you. So it's you… It's truly interesting."

"Before that, let me take care of a few things first, Issei-kun."

That voice, so it was her! I can finally die in the arms of a beautiful girl!

After that, it was nothing but darkness.

[WAKE UP! WAKE UP! IF YOU DON'T WAKE UP, I'M GOING TO K-KISS YOU….]

"Ugh…"

It was an alarm clock that could wake you up with a tsundere voice. In his muddled state, Issei failed to gripped the cabinet next to his bed, and fell down to the floor in a heap.

"What happened? Did I get into a dream where Yuuma-chan killed me? It can't be. I'm still alive, right? It was all a dream, right?" he murmured to no one in particular.

He pulled up his shirt and saw a big scar. It was like he was stabbed, and someone stitched it. It is a faint scar, and most people probably wouldn't notice unless they look closely at it.

"Ise-! Wake up!"

It was Issei's mother, telling him to wake up.

"I'm up! I'm up mom!"

Today's gonna be a terrible day. I just know it.

…

Kuoh Academy

"Hey hey hey! Why do you have a face like that when paradise is literally in front of us?!" Matsuda sighs

"You haven't been in the mood since a week ago. Weird. Definitely weird. You aren't the same as before." Motohama said while poking his glasses

"Do you have some kind of illness? No, it can't be. There is no way that you, Issei, the "Harem King" and the manifestation of all sexual desires would fall sick? Surely it can't be?"

Real nice there Matsuda, Issei grumbled mentally.

"Or maybe, just listen to me, Motohama, is it the side effect of the imaginary girlfriend? What's her name again? Yuuma wasn't it?"

"It must be it, Matsuda! Our poor Issei must be in some stump right now. C'mon Matsuda, as good friends, we should cheer Issei up."

"And how do we do that, Motohama?"

"With Eroges, Adult Videos, and adult mangas, of course, I heard that Hinata Ema had released a new adult video!"

"Oh…. the new release, right? I heard that-"

"Guys shut up for a minute, please," Issei butted into their ramblings, causing the two to look at Issei, surprised at the outburst.

"You guys seriously don't remember Yuuma-chan?" Issei asked

"Yeah, as far as I remembered, you never introduced us to a girl named Yuuma…"

They didn't remember? I vaguely remember them saying something like "How could this be Issei's girlfriend?" and "There must be a glitch in the system." among other things.

"Oh yeah, by the way, I heard that there's a new transfer student. I hoped it was a girl, but it turned out to be a dude called Kiyoyama Nao. Another pretty boy we have to contest against!"

"Yeah, I heard about him. He's a third-year transfer student, right? On the first day, everyone was so nice to him. The girls were also murmuring about "Second Prince" or something. Also, he caught the Two Great Onee-sama's attention, and now he's always seen with Rias-senpai and Akeno-senpai." Motohama said begrudgingly.

"Heard that he's also brilliant, knows every answer that the teacher asked him like it was nothing. Ah….. I wish I were him, goddamn bishounen! You're all the enemy of perverts like us!" cried Matsuda.

Kiyoyama Nao… Issei thought.

While he was thinking, Matsuda and Motohama were sullying over the new transfer student. Then, Matsuda got a bright idea.

"Anyways, we are in the middle of our youth, so something like that can happen to all of us. Okay, after school, you guys should come over to my place and watch my secret collection."

Perverts, all of them. Well, I, too, am a pervert, so I probably sound hypocritical calling them that. Issei thought, smiling to himself.

While two of his friends were bickering about Matsuda's secret collection, Issei's mind was not on the conversation. He's currently thinking about the event that had happened a week ago.

I remembered crimson red, but I also remember that faint flash of blue. What happened to the guy that was also at the park too? Was he dead? No, it was all a dream, right? And what's with the new transfer student? It's a weird time to transfer if you think about it.

Kiyoyama Nao

Wait a minute, now that I think about it, the guy that was at the park kind of looks like him.

Could it be?

"Hey Issei, are you coming or not?" a voice broke Issei's thought.

"I'm coming, I'm coming!"

Whatever, I'll put the Yuuma-chan incident on hold. Man… I seriously need a break.

I think I need to forget about the incident and focus on porn! Just like how boys about our age do!

…

A brilliant crimson color…

The girl with crimson red hair. The school idol whose beauty is beyond an ordinary girl. Her voluptuous proportions aren't of a typical Japanese girl.

Because, of course, she isn't Japanese at all. Rumors said that she hailed from a prestigious family somewhere in Northern Europe…

Rias Gremory

Besides her, there was another beauty. The perfect embodiment of the ideal Yamato Nadeshiko. With a figure that can rival Rias Gremory, she earned her spot as the second Great Onee-sama.

Himejima Akeno

At the back, the mysterious transfer student also walked with them. Not much is known about him, but he was called "Second Prince" because of the mysterious air surrounding him and his overall attitude to every student, teacher, and staff member of Kuoh Academy.

Kiyoyama Nao

"Is that the new transfer student?" a student remarked.

"Oh wow, Gremory-san is always pretty. I can't even compare to her…" another female student admired.

"Damnit, what's the thing that he has that I don't?"

"Gremory-san, Himejima-san, they're looking at us…" Nao said, feeling somewhat disturbed at all the looks they're getting.

"Ufufufu, what is it Nao-kun? Are you scared of us? You shouldn't be afraid. I won't bite. Well, except when it's the two of us in private~" Akeno chuckled, her cheeks dusted with pink as she imagined the scenario in her head.

Rias and Akeno both took Nao's left and right arm respectively and dragged Nao with them.

To onlookers, it must've been nice to have the two Great Onee-sama escorting you.

To Nao, however, it wasn't all that great.

I shouldn't have helped that boy, should I? Now both of them can't seem to stop wanting me as a part of their peerage.

Flashback

They met at the ORC club room on the evening, a day after he saved Issei's life, now he was sitting on the couch while crossing his arm. It was a day after the fallen angel incident, where he regained his power as Nahobino and regained his ability to call mythological beings.

"Well, here I am. What do you want me to do?" Nao asked

"Before that, do you want something to drink? Perhaps Tea? Rias asked

"I'm fine with whatever you have."

"Akeno, please brew some tea for us."

Akeno nodded, before getting up and walked to the inside room of the ORC club room. The sound of boiling water can soon be heard, and the aromatic smell of tea soon wafted across the room.

"Well, first of all, we should introduce myself, no? My name is Rias Gremory, the heiress of House Gremory, one of the 72 pillars of Underworld." stated Rias

"I'm Kiyoyama Nao, a mage." Having heard Rias' titles, Nao felt it is courteous to reply with his. Yet, he couldn't reveal himself fully to the girl in front of him before she gained his trust, so he settled with something similar.

"Well, Kiyoyama-san, pleased to meet you." Rias gave him a polite bow, typical of Japanese.

"Before that, can I ask you a question?"

"Please, go head." Receiving a nod, Nao returned one of his own before asking.

"Okay… so you're saying you're a Gremory? And your house is one of the 72 pillars of the Underworld? Would you mind elaborate me on that?"

"Ara, for someone who single-handedly killed a fallen angel, you seem to know next to nothing about the Underworld." chuckled Akeno, gracefully carrying out a tray of tea and snacks.

"Look, I don't understand anything about what's happening, okay. So, can you please start from the beginning? First, I would like an explanation about the creature that I killed yesterday."

"Ah, yes. Raynare, she was a fallen angel, and she was part of the Grigori."

"What's a Fallen Angel? Grigori?" he asked again.

"Fallen angels were angels that had abandoned God's principle and chose to indulge in sins. And Grigori is the fallen's organization led by Azazel, the first Fallen Angel."

He nodded his head in understanding.

"Why did the fallen angel want that poor kid die? Did he piss off the wrong people or something?"

Rias shook her head.

"No, he did not, but he did have a Sacred Gear."

"Sacred Gears are items with powerful abilities bestowed upon humans by God of the Bible, and of course, everyone wanted to get their hands on one. I heard the Grigori had managed to make a device to extract the Sacred Gears from their user, although the side effects are unknown to us."

While the two of them were having a conversation, they were interrupted by Akeno.

"President, here's your tea," Akeno said, placing a cup of tea in front of her King.

"Thank you, Akeno, as always." Rias gave a smile, smelling the familiar fragrant tea.

"Fufu, it's my pleasure." giggled Akeno.

"Well then, since I've introduced myself, can you tell me more about yourself?"

"I already told you my name and my profession, and I'm eighteen, and… I'm sorry, but that's all I'm willing to share at the moment." he stopped.

"Kiyoyama-kun, since you're 18, I'm assuming that you're a high schooler. Which school are you currently attending?" Rias inquired, her eyes glowed with a glint of curiosity.

"Jouin High-School," he replied

"Where is it located Kiyoyama-san?"

"Shinagawa, in Tokyo,"

"What is a Tokyo citizen doing here in Kuoh? This is just a small suburban town compared to the capital…"

Nao didn't want to answer, his earlier investigation pointed out that Jouin didn't even exist in this world. He decided that it would be best to shut his mouth to not reveal any information he didn't want. He barely had trust for the red-haired woman anyways.

"Not answering?" Rias pressed.

He shook his head.

"Hmm… this is going to be difficult," Rias sighed.

"Well, excuse me then," Nao said - standing up as he wanted to leave

Suddenly a knock was heard.

"Yes, come in," greeted Rias

It was Sirzechs Lucifer, formerly known as Sirzechs Gremory. The current Maou of the Underworld

"Onii-sama, what're you doing here?!" Rias asked, shock apparent on her face after seeing her brother appearing in the human realm.

"Ah, Lucifer-sama, I didn't hear you come in,"

"It's fine, Akeno, now Rias. Is this the boy that you told me about yesterday?"

Rias nodded her head.

"Ah yes, didn't get your name? What was it, Kamiyama Nao was it?

"Kiyoyama Nao, sir." Nao corrected

"Ah yes, Kiyoyama, Kamiyama, whichever. Since both of them aren't in any form of citizen database,"

"What did you mean sir…" Nao trailed on, trying to maintain his cover, yet deep in his mind he knew that he had been busted.

"Don't play dumb with me, kid. I searched for your record, and nothing was there, it looked like you just came out of thin air! Now tell me kid, who are you? And what was it that you do to kill the Fallen Angel."

"Uh.." Nao grimaced. What Sirzechs said was true; he did pop out of thin air yesterday.

"Ah, where are my manners. I haven't even told you my name yet, and here I am accusing you of things."

Nao can't say anything. It was over, wasn't it? Now he would be taken to prison for questioning, and who knows if these people will torture him for information.

"My name is Sirzechs Lucifer. The current Maou Lucifer and Rias' doting big brother."

"Onii-sama, this is no place to fool around like that!" Rias pouted, clearly embarrassed about what Sirzechs had said.

"Forgive me, Ria-tan, but I'm not wrong, you know. I've always spoiled you since you were little."

"Your name is Sirzechs Lucifer? Gremory-san, you never told me that you're related to Lucifer,"

"You didn't really ask."

"What's wrong kid? Scared of the big bad Devil?" Sirzechs joked.

The joke was that - a joke. He knew this Lucifer wasn't really related to the one he fought. He was more friendly, and Nao had deduced that he was not as strong as him. If those two were to fight, he'd put his money on Lucifer from his world if he was honest. It was not the time to think about such a trivial topic, it was time for him to find answers.

"No, it's fine…" the boy quietly said.

"Still, I commend you for defeating the Fallen Angels, even though that'll create some work for us in the Foreign Affairs department.." Sierzech absentmindedly said. The Fallen Angels in his sister's territory was quite a problem – he knew that she couldn't outright confront them without pulling some strings, but he was still disappointed somewhat in her lack of foresight, almost resulting in the death of a human… not that it mattered to him, anyway. He only cared about his sister's safety above all else.

"It's fine, she wasn't that strong…"

"Well then, as far as I can see, you have no ID, and no work would accept you so you can't sustain yourself. While I'm in need of someone cleaning this territory in my dear sister's stead.

How about this? I'll provide you with monetary compensation for every Stray Demon, and Fallen Angels if they are causing trouble here. As a bonus, I'll provide you with an ID, and allow you to attend this school for free. We can work out the details at a later date, but what do you say?" Sierzech said. His plan was brilliant if he were to say, the area would be safer, while he kept this new unknown factor in the same school as his sister for ease of surveillance. As he have observed so far, this boy bares no hostility against his sister, and Sirzechs believed himself to be a good judge of character.

"Strays?"

"Those are demons that are not bind to their masters and decided to rebel against them, you'll find them trying to eat humans and causing mayhem. They could be found at night, usually near abandoned areas."

This was the best deal that he could get, with no money or ID he can't really do anything to support himself. Coupled with living in a world that he barely even knew - killing some demons isn't the worst thing he does. Besides, he was killing demons in Da'at for money before, so it was a no brainer for him.

"I'm assuming you'll be handling the aftermaths?" Nao said, and Sirzechs gave him a nod. The two shook hand, signifying the establishment of their deal.

"Nice working with you kid, if you killed a stray or Fallen, just report to Ria-tan here and she'll give you your payment."

And that's when Nao officially dipped his toe into the supernatural world.

…

Issei and the perverted trio went to Matsuda's house to watch some porno. The three had a blast at first, because it had been a while since the last time they done this together. But then remembering their disappointing reality, the Perverted Trio cried out loud at the unfairness of the world.

"Man, I seriously want to grope some tits…" Issei said while hugging Matsuda.

After the marathon ended, Motohama and Issei head home.

"It's a beautiful night. Since tonight's a good night, it is obvious that I'll be watching more porn. Anyways, see you issei."

After that, they split up, going to their respective homes.

But on the way home, Issei felt something weird. The sensation was like that time. The time where he got stabbed to death by Amano Yuuma.

"This is rare. To meet someone like you in a place like this…"

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