Disclaimer: I do not own High School DxD.

Warning, this story contains religious and mythological elements. The author does not mean any disrespect to the mentioned religious views.

Thanks to Wrathie Winsre for the cover image!

DxD Deuteronomy Ein

Prologue

Hyoudou Issei is my name. My parents and friends call me Ise.

And right now, I'm running for my life.

"Damn it! Damn it! How could it come to this?"

I shouted as I ran. Passing through many other students who would point at me and whisper to their friends.

I barely could hear one of them muttering about the pervert trio causing trouble again. That's not fair! They don't even know why I'm running but they are already blaming me and my friends, Matsuda and Motohama?

...what's with that look? Don't you believe me?!

...I'm sorry. It's our fault. Matsuda told Motohama and I that he found a peephole in the room beside the girls' changing room. With great spirits, we went there just as the Kendo Club is about to change. We peeped, well... Matsuda and Motohama did. I didn't manage to catch a glimpse because those two bastards monopolized the peephole!

Then Matsuda and Motohama gave several enviable observations about the girls they saw. I wanted to peek too! Just as I was about to drag Matsuda and Motohama away for a turn, the girls screamed, noticing us.

We immediately abandoned the peeking spot and ran away. But the girls seemed to be empowered by their rage and charged at us as soon as they were clothed.

And now we are being chased by a pack of sword-wielding girls who are trying to beat us up.

Wait a second. Now that I thought about it. Where's Matsuda and Motohama? I looked to my left and right as I keep running. They aren't here! Did they get caught? Should I turn back?

"Hyoudou Issei!"

I heard a roar from behind me and I immediately uttered prayers for Matsuda and Motohama. Their sacrifice would not be in vain! I will escape!

I imagined the girls chasing after me. Their swords waving like demons, their faces flushed from exertion, giving them a rather sexy look. My imagination then took it a step further by supplying me how their oppai would bounce as they ran.

Uwoh! I could feel a different kind of strength welling inside me! I tried to turn my head to catch a glimpse of the girls.

Seeing my gaze, they screamed and shouted death threats at me. Making me discard any thoughts of slowing down or peeking, and focused my strength in running.

Unfortunately for me, I didn't get a power-up from this, so the girls were growing closer with each step I took. Realizing that I can't escape like this, I turned in one of the hallway and entered the first classroom I found.

Fortunately, or unfortunately, it happened to be my class and there's someone in here.

A red haired student with red eyes sat on one of the chair, reading a book. He met my gaze with his own. After a second or so passed, he ignored me and returned his attention to the book he is reading. I blinked, realizing that I didn't know who he was.

Then the voices of the kendo club girls reached my ears and I ran towards the huge locker at the back of my classroom that we usually use to keep cleaning tools. I opened the locker and hid myself inside it.

The door to the classroom was opened, and the girls entered. I paled as I realized they were approaching the red haired student. If he spilled my location, I'm doomed!

The girls seemed to ask the male student something, and he replied. I panicked, thinking that he told the girls my hiding spot.

Unexpectedly the girls left the classroom and I sighed in relief. When I opened the locker, I saw the student approaching me. I tried to recall who he was.

"I informed them that I did not see anyone entering the classroom. For now, you should be fine in here."

I sighed in relief, thanking him for keeping the girls away from me. Then I asked who he was.

He blinked, as if not expecting that question.

"My name is Potestas Kamael. I transferred to Kuoh Academy last week."

Ah, now that he mentioned it. I could remember our teacher saying something about that and introducing a transfer student. Matsuda, Motohama and I ignored them when we heard that the student was a boy though. So he is the transfer student...

But... Potesutasu Kamaeru? That was difficult to pronounce. He corrected me and told me to call him Kamael.

"You must be Hyoudou Issei-san," He stated as he stared at me. I felt a bit uncomfortable because of his stare.

"Kamael-san, how did you know my name?" I asked him. I never introduced myself to him, where could he heard my name from?

"Our classmates warned me of you and your friends. They claimed that the three of you are perverts."

I rubbed the back of my head, I couldn't really deny that.

I mean, being interested in girls and oppai is normal for youthful guys, you know?

It shouldn't be something that is abnormal, you know?

I realized that there was an awkward silence. And I was stumped. With Matsuda and Motohama, I could just start the talk with girls or eroge that I recently played as a topic. But I don't know anything about this guy to start a conversation!

Then I noticed the black book in his hand. The same one he had been reading before.

"What's that book?" I pointed at the book.

Kamael-san smiled at my question, seemingly happy at my interest. ...I felt a bit guilty because I just asked him because I don't have any other topic.

"It is a Bible, Hyoudou-san," He said as he showed it to me.

I checked the cover. It looked different from the one I saw in my childhood friend's house. Let's see... if I remember, a Bible is the holy book of a Christian, right?

"Are you a Christian, Kamael-san?"

I seemed to have asked the wrong thing as Kamael-san showed a strange expression. As if he could not choose between offended or amused.

"I... believe in the God of the Bible, yes. However, I am not a Christian, nor do I belong to any Church."

I blinked, so he was not a Christian? Does that mean there are other religions who worship that God other than Christians? But since I don't want to be seen as noisy, I didn't press further.

The silence returned, and I started to wonder if I should just leave. But I thought that would be impolite, especially since Kamael-san had saved me from a brutal punishment from the kendo club girls.

Unable to take the silence anymore, I blurted out.

"Kamael-san, do you like boobs?"

Kamael-san stared at me with surprised expression. I soldiered on.

"I like boobs. I think they are filled with hope and dreams!"

That's true. That's what I honestly think.

Oppai is a wonderful thing! They are beautiful and sexy! It is a dream of mine to touch an oppai!

"I... do not have any opinion on them."

I deflated a bit hearing that. I had hoped that Kamael-san would share my interest in oppai.

"However," I perked up hearing that, "I believe that it is good that you are passionate about something."

I almost cried, Kamael-san is a kind guy! While it's a pity that he doesn't share my opinion about oppai, he didn't insult me like girls in our class and some of the guys.

In fact, maybe Kamael-san would realize the beauty of oppai if I told him about it?

Encouraged, I told Kamael-san about the tales of oppai of womankind.

About how they were beautiful. Their shapes and sizes may differ, but each are equally fascinating. I recalled the uncle who taught me about oppai as I continued my speech.

"...that's why I think oppai is wonderful."

I ended the story with that sentence, Kamael let out a small laugh.

"Hyoudou-san, you are quite interesting, aren't you?"

I didn't know how to react to that. I've been called pervert and idiot, but no one has called me interesting before.

"However, Hyoudou-san. While I am sure you have other tales to tell. The sun has set, we should end our conversation today and return to our dwellings."

I blinked at the strange choice of words but nodded.

"Kamael-san, do you want to join Matsuda, Motohama and I for lunch tomorrow?"

"If your friends do not mind, then I shall intrude."

I grinned, taking that as a yes.

I was quite happy as I made my way home.

When Matsuda, Motohama and I were found by the girls from Kendo Club, I thought we would have another bad day. But the beating and lecture did not come. Instead, I met and was saved by a new friend.

Kamael-san listened to my stories about the wonder of Oppai and he didn't insult me! Even Matsuda and Motohama would make fun of me when I ranted about Oppai sometimes, though we did so without any bad feelings between us. I wonder if I was too rude and he was just being polite...

...I have to ask him tomorrow. Kamael-san seemed like a good person, so hanging out with me might trouble him.

I'm not proud about it, but I don't exactly have many friends. Neither does Matsuda and Motohama. Most of our classmates were scared away by rumors about our exploits.

Most of the rumors were exaggerated stories about our 'adventures'. But some of them actually happened, like that one time we tried to peek at the swimming club but was caught and thrown to the pool. And that time when we brought eroges to school, the eroges were confiscated and we got lectured and was told to stand at the hall until the class was over..

Wasn't that too much? I get the lecture, but why did sensei took away my eroge?!

"Excuse me."

No way, could it be…

"Hello?"

Sensei wanted to play the eroge too?! No way, could it be that sensei is a pervert?

"Excuse me!"

I was snapped out of my thoughts by the sudden yell. A beautiful girl stood in front of me.

The uniform she wore wasn't from our school, it was like one of those high-class girl school with red blazer and black skirt. There was a gold 'P' embroidered on the blazer, maybe the name of her school?

She seemed to be about my age. But her beauty far surpassed my classmates. Her long black hair seemed to gloss under the sun, her violet eyes and the faint blush on her cheeks gave her a cute, shy girl impression.

In short, she was a beautiful girl, a bishoujo!

I blinked. Wait a second…

A bishoujo? A real life bishoujo? Talking to me?

"Y-Yes?"

Damn it! I stuttered, that was not cool! But this is the first time, I'm talking to a bishoujo like this! You can't blame me for being nervous, right? Everyone would act like this when faced by such a beautiful girl!

She took a deep breath before speaking.

"A-Are you Hyoudou Issei-san?"

How did she know my name? Did rumors of me spread to other school already? Was she going to condemn me as a pervert? Did I somehow offend her or peek at someone she knew?

"Yes, I am. Um… who might you be?"

...I slipped into polite speech before I knew it. Damn it! Bishoujos are powerful!

"My name is Amano Yuuma," She answered with a bow. "I have something to ask of you…"

Then she stared at me with a cute upturned eyes, her blush deepening.

...so cute… I want to hug her...

No, no! Bad Issei! I shook my head to clear my thoughts.

"What is it, Amano-san?"

I tried to ask her politely. Inside, I was dreading the answer. What could the bishoujo want of me? Someone who is only famous because of perversity?

She opened her mouth to answer, and I braced myself.

"P-Please go out with me!"

Nothing in the world could prepare me for that.

"...pardon?"

What did she just say? A confession? No way, that couldn't be it, right? There's no way that a bishoujo would appear in front of me, with the setting sun and all that convenient romantic background then confess her love to me.

Amano-san seemed to be puzzled by my reaction, then she spoke again, louder this time.

"Please go out with me!"

Again, and this time, I heard it clearly. My heart began to thump loudly as I tried to process that sentence.

This was a confession, right? It couldn't be mistaken with other kind of request, right?

My body shook, seriously? I am seriously being confessed by a bishoujo?

There was an urge, no, a massive urge to cheer welling up within me. I regrettably crushed that urge. She would think I'm strange if I suddenly shouted now.

As I was too caught up in my thoughts to answer, Amano-san's lips began to tremble.

"...you don't want to?"

"I want to!" I shouted, "No, in fact, please allow me to go out with you!"

She nodded cutely when she heard my response. Then she covered her face, perhaps to hide her embarrassment.

I could feel a flutter in my stomach. Could it be, that my Springtime of Youth has come?

Father, Mother, I, Hyoudou Issei am grateful for being born!

Humans.

Such fascinating creatures.

Their lights, their lives were small compared to us, yet they managed to accomplish more than any of us ever did in thousands years. Unlike us, they were free to act upon their desire, their curiosity. And they have given birth to new innovations using what they have learned by harness the Laws of the World.

The last time I descended to this world was back when I hunted down the Serpent. At that time, humans were still scattered, none knew of the others' existence. The humans who were created by the Lord, the humans who were created by the Pagan Gods, and the humans who remained untouched by the influence of Gods.

And now, they were able to contact one another from across the world, helping one another, speaking to one another.

To think, that Lucifer once said that they were nothing but transient guests in this world. That their short lives would lead them to their doom before they would place their marks on the world.

Looking at the world, I could not help but marvel at the beauty, at the efforts that humans had given to create it.

With the tools and knowledge that the Watchers had given them, they changed the world. It was but a minor pity that it limited our influence to the world. That they would lose their faith in the Lord with each new knowledge they gained.

In some ways, I could understand the reason why the Watchers fell, why they would turn away from the Lord in their fascination of humanity.

No, I should not be carried away. My mission remained unchanged.

"...the Red Dragon Emperor, eh?"

Such an interesting human. From within the Fourth Heaven, I watched many humans fell to the temptation of the Red Dragon's strength. Yet, this human remained unchanged despite the being sealed in him. His power did not manifest, he did not share the pride and lust for battle that most Dragons possess.

He did not wish for power, he had no need for power. Unlike many others, who would squander the Gift given by the Lord by throwing away their humanity for power.

He was different. The purity of his soul, the vigor he displayed, the conviction in his voice, the sheer potential in him…

But of course, the darkness would attempt to taint him, to convert him into their own.

I would never allow such thing to happen.

"The Devils will never touch Hyoudou Issei as long as I, Kamael, exist."

I screamed to the Heaven from the rooftop of Kuoh Academy.

Yes, this lunchtime the school has gave us shall be used by me, shouting my appreciation to the world!

"The world is beautiful!"

Matsuda, Motohama and Kamael-san blinked at the same time after hearing my words. ...I didn't expect that, I thought people only do that in anime or manga.

"Hey, Ise broke," Motohama pretended to whisper to Matsuda.

What's that supposed to mean?! How did he reach that conclusion just from me declaring the beauty of the world?

But! I won't be discouraged! Unlike those two perverts, I, Hyoudou Issei, has changed.

I have evolved! I am now a Riajuu, someone who actually enjoys life!

Yes! For I have met Yuuma-chan!

I grinned happily as I thought about her, how we met and her confession.

"Ise, want us to call the hospital?" Matsuda asked me with a laugh.

Hmph! You guys can only act like that because you have not realized it yet!

"Tremble in fear, Matsuda, Motohama!"

I waved my arm like one of those cool Demon Kings in RPG.

"For I, Hyoudou Issei, am no longer single! I, now, have a girlfriend!"

I declared thus, and it was the truth.

"...right, let's haul him to the hospital."

That hurts! Matsuda! Those eyes filled with concern hurts!

And Motohama! Why are you taking out your phone and dialing 119!

"Hyoudou-san," Kamael called me out, "Perhaps you should regale us with your tale. How exactly did you meet your girlfriend? I do not believe you mentioned her yesterday."

I smiled as I thought about my meeting with Yuuma-chan.

I don't really remember what I said to them since I was so happy, but by the end of it. Matsuda and Motohama demanded that I prove Yuuma-chan's existence to them.

On the other hand, Kamael-san seemed to be deep in thought.

"If you guys want to see Yuuma-chan, then I'll introduce you guys to her. She said she'll wait for me outside the academy after school is over."

Matsuda and Motohama agreed. Saying things such as breaking my illusion. What are you guys? Kamijou Touma?

"My apologies, I will not be able to go with you. I was told to speak with the Student Council President after classes are over."

Kamael-san seemed to be annoyed when he mentioned that. But I guess no student would want to be called by Shitori Sona-san who is famous for being strict.

After school was over screams full of despair came from my two friends.

"No way! How come a beauty like her is going out with Ise?! I can't believe it!"

"Impossible! There must be some kind of SYSTEM_ERROR! Issei! Don't tell me you used some kind of CODE_SCAN or ILLEGAL_HACKING to THE_WORLD?!"

Serves you right! Watch in despair as I ascended beyond you guys and become a Riajuu!

This is it.

I opened my eyes wide and rushed out of the bed and dashed into the bathroom.

I have brushed my teeth for dozens of time since yesterday night, but I couldn't be too careful and brushed it once again. Making sure that I did not miss any teeth.

Picking my best clothes, I checked my plans for today's date. Written on my notebook was a list of shops and restaurants that Yuuma-chan and I could visit, the routes that we can take to reach it and some suggestions from Matsuda, Motohama and Kamael-san about what kind of presents should I give to Yuuma-chan.

Matsuda suggested to buy Yuuma-chan some goth loli outfit. As expected from a self-proclaimed lolicon. ...I lost myself for a moment as I imagined Yuuma-chan in that kind of outfit. Frilly black dress swinging as she twirled…

Motohama's suggestion was… glasses and mature women clothes? ...I imagined Yuuma-chan being a teacher. Scolding me as I answered her question wrong and then praising me when I answered correctly…

And lastly, Kamael-san suggested… a Bible? I blinked. He did say that he believed in God, but he said he wasn't a Christian. I shrugged, before suddenly a thought struck me. Maybe Kamael-san is giving this as a clue? A sister uniform for Yuuma-chan… With her shy and cute attitude, a sister uniform would suit her…

Ahh! I can't choose!

Then I realized what time it was. And I rushed out of my room, running towards the place where we promised to meet. Like a virgin guy, I arrived three hours earlier than the planned time.

I guess I shouldn't have come here too early, I muttered to myself as I was given an occult looking thing with a red circular symbol filled with strange words and shapes. Since I was afraid that Yuuma-chan would think I was strange if she saw me holding this occult symbol, I threw it away.

At the promised time, Yuuma-chan arrived.

"Sorry, did I make you wait?"

She asked with an embarrassed smile.

I grinned, I've been waiting for this moment!

"Don't worry, I also just got here."

There it was! The sentence that I have waited for years to say! That sentence would be yet another mark in the birth of a new Hyoudou Issei!

With that, our first date began. I was nervous at first, but when Yuuma-chan grabbed my hand with hers, my nervousness faded away, replaced by happiness.

I, Hyoudou Issei, is now on a date with a beautiful girl! Our hands are linked together!

As we visited the stores around us, I made a mental note of things that Yuuma-chan showed interest in. Motohama told me that I should buy things she is interested in as a surprise present, it would make her happy. He said he learned that from eroge.

I grinned, that is Ero-Megane, the Perverted Glasses for you. His experience in 2D is deep.

By the time lunch came, I had a list of several presents, one of them, a huge teddy bear seemed to be a good choice for a Christmas present. Even though it was still far away, I resolved myself to buy it for her in the future.

After that, we went to a cafe for lunch. Yuuma-chan ordered a chocolate parfait, and I could feel my hunger disappearing just by watching her eating the parfait.

The sparkle of happiness and smile that she had as she tasted the parfait was heavenly. And for the first time in my life, I actually felt alive for the first time.

That happiness, I wanted to treasure it and protect it forever…

Without us noticing, the sky was getting dark and the two of us were alone at the park away from the town.

Our date was nearing its end. And my nervousness returned.

Should I offer her a goodbye kiss? Should I ask her for another date?

As thoughts ran through my head, Yuuma-chan spoke as she turned towards me.

"It was fun today."

Her smile was radiant.

I nodded, not trusting my mouth to speak before her. The sight of her being illuminated by the setting sun was the most beautiful thing he had ever seen.

"Hey, Ise-kun."

Her cute smile remained as her eyes met mine.

"What is it, Yuuma-chan?"

My heart was pounding.

"There is something I want to do to celebrate our first date."

The pounding of my heart intensified. My imagination immediately went to a kiss. A real kiss to the mouth.

"Um, what is it that you want?"

I tried to keep my anticipation hidden, but my feelings must be visible to her as her smile seemed to widen.

"Will you die for me?"

Umm... Huh?

What? What did she say?

"Umm… sorry, Yuuma-chan, I must have heard wrong. Could you repeat it again?"

There was no way that she sai-

"Will you die for me?"

This time, she let out a giggle as she asked me once again.

As I tried to process that 'request', something happened before my eyes.

A pair of black wings appeared from Yuuma-chan's back. Her smile that was beautiful now looked eerie.

I… couldn't believe my eyes. I did call her beauty heavenly but… those wings… is she an Angel? A real Angel?

"Honestly, that was the most boring date I've ever experienced. It was like playing house with a little child," Her voice changed, it was not the sweet voice I had grown used to, it was a cold and cruel mature voice.

A buzzing noise could be heard as something appeared in her hand, a spear, a light spear that defied common sense and reality.

I still could not understand. I did not want to understand.

"Sorry, Ise-kun. You are a threat to us, so we decided to get rid of you early. If you want to hold a grudge, then blame God for putting a Sacred Gear inside you."

With those words that was incomprehensible to me, she threw the spear.

In case some of you missed it, I will repeat the warning.

Warning, this story contains religious and mythological elements. The author does not mean any disrespect to the mentioned religious views.