The Mana God of DxD

Summary: As someone said, God is so many and many in the world, but not many people know the gods. However, the god who came this time is really unique. A God but does not symbolize like that—he's just like a normal teenage boy! Short black hair, has blood-red eyes, a body like an 18-year-old teenager and most importantly—his unique thoughts. Follow his adventure in this world!

Rating: T (Maybe will turn into M)

Genre: Action, Ecchi, Harem, Romance, School, Supernatural

Disclaimer: High School DxD is not mine!

Warning: Mainstream! OOC!Ophis Female!Ophis (Because 'she' was a genderless and I want to turn 'her' to female), Godlike!OC MC!

Pairing: MC OC x Ophis (Main) x Harem (?)

Beta-ed by: MAuthorian-WarriorOfBirthright


Chapter 03: Something that will change the history

Somewhere in the Underworld. With the existence of such a magnificent building, some bright black pillars like crimson colors supporting the sides of the building. Has about 10 floors with the size of each floor is so vast, roughly half of Tokyo Dome.

The entire building has a design that is so unique, the infinite symbol (∞), it is the epitome of Infinite Dragon, emblem of the Ouroboros Dragon—Ophis—they wear the emblem as a sign of their existence.

They are the Khaos Brigade, a terrorist organization that contains members of various races such as Devil, Fallen Angels, Humans, Angels (who didn't fall). Some of these humans are reincarnations or descendants of legendary heroes or historical myths.

Their stature is so strong, it can't be underestimated, nor is their organizational chairman the Super-Devil descendants and son from Lucifer and Lilith. He is one of the most gruesome demons ever known to many.

"How can Ophis disappear? Lucifuge, answer me!"

Heard the order of the chairman of the organization that he joined, the man known as Euclid Lucifuge, trying to say something and answered in a calm tone at the officer.

"Rizevim-sama, I don't know either. And I'm sure that Ophis is always in the Dimensional Gap enjoying the silence along with Great Red who are there too."

"That doesn't help, Lucifuge! Tch, how can this happen?!"

Venting his anger, Rizevim was hit hard table in front of him at this time and managed to make a crack so big. Other members who see this just look at it with a casual look because it's a common thing to see their chairman like this.

Exhaled and a dark-haired, black-eyed man wearing a black vest turned to Rizevim.

"Ouji-sama, may I give you my opinion?"

"What is that?"

Trying to take a deep breath, throw it away and glance around it, he replied.

"What happens if... Ophis is taken away by someone?"

"…What?"

Silent. All members of Khaos Brigade who heard the explanation of the creature known as the Dragon Evil—Primal Eclipse Dragon, namely Apophis. A dragon that has a true shape of 100 meters and is a blackish-colored West Dragon that makes it the second largest dragon after Midgardsormr.

The words of Apophis are both plausible and crazy. That is... who is anyone other than them (especially Rizevim) who bravely and crazy take the Infinite Dragon away? Does anyone dare? If it like that, surely he isn't a human like Rizevim. It was really beyond their predictions. Especially Rizevim, he had never expected such a thing would likely happen.

"You mean... that's true?"

But Apophis just raised his shoulders as a sign of not knowing, his facial expressions also indicate that his words were just speculation or the possibility that he thinks why Ophis can disappear from the Dimensional Gap.

Although Rizevim can also think of the possibilities where Ophis dragged into another dimension but he couldn't think of anything silly like that, so he didn't think about it again and try to think of other possibilities.

But still, Rizevim inevitably seems have to accept speculation from Apophis. He could only growl, he tightened his fist and his body could only shiver angrily.

"W-Who dares to... do it?! Who's trying to ruin my plan?! Why did he take Ophis away from the Dimensional Gap?!"

"Rizevim-sama, please calm down a bit. We don't even know who took her away, nor where she was taken and what reason he took her away from the Dimensional Gap."

"I know it but—"

"Yeah. Not only are you angry, we are all also angry about not being able to take Ophis's power and use her as our power enhancer later in battle. But if you still want to seek Ophis, then we have 2 choices."

Rizevim and other members besides Euclid also put up a puzzled and curious expression while staring at the man.

"What is that?"

Moving his finger one by one, Euclid also informed.

"First. Ignore it and battle forward with our present strength. If it is possible, we can do something like training."

But his response got a negative response. Rizevim and others except the dragons shook their heads in disagreement. The evil dragon who accompanied Rizevim as a member of Khaos Brigade so strong and will certainly want to just do the training to be fighting with his match for them.

"Okay. Then the second choice."

"Second huh. What is that?"

"Second. Search and hunt the people who take Ophis away from Dimensional Gap. Searching for things to get a hint like a magic trace, smell, aura or other possibilities still left there. But considering it's been 3 months since Ophis disappeared, I doubt the traces still in there."

What Euclid said it's makes sense, but the chances of success finding the perpetrator that causes Ophis disappear is so small because the incident has passed for 3 months.

With a flutter of confidence, Rizevim also ordered his followers.

"Okay! Listen to me, all of you. To seek Ophis and seize her power so we can use in sparking a war between the 3 factions, together we will also seek and kill the offender who has taken Ophis from us."

"Oooh!"

The excited and thunderous screams were thunderous in their headquarters room. The charisma given by Rizevim's speech has succeeded in getting his followers or members of his organization to agree on his current objectives, namely-finding the one who brought Ophis away from the Dimensional Gap.


[Gremory residence, the main Mansion]

News of the disappearance of Ophis reached the ears of crimson haired Lucifer known for amazing power that he have from Bael clan who is also a member of the family or Gremory clan.

What he did when he heard the news, he was so surprised but tried to calm down. This is really a serious matter, one of the strongest creatures in the world disappeared from its control. The creature he watched was Ophis the Infinite Dragon, one of the dragons whose powers were equivalent to Great Red.

The crimson-haired young man could only just massaging his forehead while trying to call the other three Devil King's of an alliance called the Four Great S, which is composed Devil King Lucifer, Devil King Leviathan, Devil King Beelzebub and Devil King Asmodeus—they are set as Underworld's strongest devil that was so feared and respected by many residents of the Underworld; although not all of them.

'I can't believe that Ophis can disappear from the Dimensional Gap.'

Devil King Lucifer was once again thinking about it, while waiting for the arrival of the other three companions and try checking the documents about Ophis disappearance that has become big news, that's almost all the residents of the Underworld was impossible not to know.

There may be some.

"Sirzechs? Are you calling us?"

"Yes, what's wrong Sir-chan? I currently enjoy my work~!"

"Hoaam... what is it? Is it because of Ophis's disappearance?"

The man called Sirzechs just nodded, but the other two were surprised to hear the guess from the man who looked lazy because he came to Sirzechs with a pillow and just floated.

"Right Falbium. It's because of that."

"Sir-chan, you mean... are you really worried about that?"

"Serafall, this is an important issue. With the disappearance of Ophis, the balance from power of chain would be a chaotic. I think Sirzechs thinks that too."

"Just as Ajuka said. Losing Ophis is really a big deal."

They were all silent when hear that, even Falbium Asmodeus, the Devil King Asmodeus who usually lolled until the follow-up was silent and thought about it in that way.

But Falbium sighed and looked at his three friends alternately while re-installing his lazy face.

"Besides, talking about it will not work, it will not solve the problem. If you want, especially you Sirzechs—we can try it and probably sent her back to the Dimensional Gap."

"But Dimensional Gap is already has a Great Red. Although I doubt if Ophis will want to be returned there. Moreover Ophis is thought and action is hard to guess, we will not know what happens later."

"Take it easy, Sir-chan! I will help you by mobilizing my entire army in search of Ophis!"

Hearing the opinions of his three friends, Sirzechs took a breath and exhaling it out with a smile to them. He really can count on the three of them who incidentally is a friend from childhood.

Tidying the report files on the table, the crimson-haired man looked at his friend alternately with his serious gaze.

"Alright. Well then, as the Devil King Lucifer of the Four Great Satan, I order to seek the existence of the Infinite Dragon - Ophis! Search all over the place until it can, no matter it's in Underworld, Human World or any other; but try as little as possible there is no persistence that happens. Understand?"

"Owh!/Understandable/Okaaay..."

The other three Devil Kings also nodded their heads and immediately rushed off to prepare troops to immediately seek the presence of Ophis, as did Sirzechs who immediately ordered his troops to search.

By announcing this to the entire population of Underworld, many people immediately knew it and so did our main character, Azuma Kazui the God of Mana from that other dimension.

He who overheard him as he came home from work could only curse himself and also the Devil King Lucifer which he thought was a bit annoying for doing this.

'Shit. The king made an unimportant announcement. It's really dangerous, Ophis's identity might get caught quickly. '

Yes. From the very beginning he took Ophis away, he didn't know if it will happen but since he knows the circumstances of this dimension, he began to think about possibility of something like this, but it's unexpected that this is really happening.

'Should I and Ophis move into the human world? But it would be inconvenient even though I know there is a money exchange place for the human world.'

Kazui who thought about it could only sigh.

'I'd better tell Ophis first.'

With such thoughts, Kazui decided to tell this to Ophis. This young man is not much hope answers from Ophis, because of the possibility that she will only follow any Kazui whim—no matter where to go, even though he thinks she still want to seize Dimensional Gap from Great Red.

Ophis really like a plain girl who is obedient and rather naive according to Kazui. That's fair, because she was born of a void or nothingness, that is what make her didn't have a certain emotions—even after living many—for months with Kazui, an emotion not grow on her and still make it look plain and empty.

Kazui really didn't know what to do with the emotional development of Ophis. Maybe it will take a long time, but because they both can be called immortal, time is not a main problem.

Knocking on the door of his house, Kazui was yelling at his inhabitants from the outside. The sound of a person's footsteps was heard from inside the house, as she was running to open Kazui who was outside and invited him.

"…Yes? Who is it?"

"Yo, I'm home."

"Kazui..."

Kazui just nodded to hear the words of the person who opened the door of his house. She is Ophis, a current colleague who is also one of the strongest dragons in this dimension. A long black haired girl and black-eyed who is currently wearing a long black sleeve dress.

'Somehow her appearance is not so different from the usual.'

That's what Kazui thinks about seeing Ophis's appearance. Okay, he does think that Ophis currently so cute and might make a nosebleed but he knew himself for not making the situation confusing for Ophis later.

"What's wrong... Kazui? Have you already… bought any ingredients... for food?"

"Already bought it and oh right, I want to talk to you about something. Let's go inside first."

"Hm. Okay."

Ophis just nodded at that and they both went straight into the house. Kazui paused for a moment and tried to make sure the situation outside his home was safe, because he didn't want unwanted things like eavesdropping or something.

After making sure it was safe, he and Ophis sat in the living room, Ophis just sitting near Kazui alone while taking the rice cake and eating it casually. Kazui just sweatdrop when see it but tried to ignore it and cleared his throat.

"Ahem. Okay. Ophis, there's something I want to talk about."

Hearing that, Ophis stopped eating and nodded.

"You know, the Devil King Sirzechs Lucifer and the other three Devil Kings are now looking for you. They know you are disappear from the Dimensional Gap."

"... Is that so? So... what's the problem... Kazui...?"

Kazui sighed for a moment.

"As I said, I don't want any hassle going on, so maybe we'll moving on. We will not stay here again, maybe."

"So... where we move in, Kazui? I... feel it's... comfortable here..."

"I understand that but there is also a possibility that a terrorist organization called Khaos Brigade will look for you."

It made Ophis wink, still with a flat, emotionless expression and tone.

"Khaos... Brigade..."

"Yes, it is. You know the monster attack before, right? It's their act to look for you."

"Their act... yes. Why are they... looking for me, Kazui?"

"From what I hear, they want your power... if they recruit you, I think you will be forced to give some of your power to them. You can do that, right?"

Ophis nodded slowly to answer the young man's words.

What Kazui said was true. By using a snake from Ophis, some people can get a small part of the power of Ophis that is used as an additional force or can increase the power of his property.

'Really, her power can considered as useless and horrible at the same time.'

Kazui just heavily, he really can't think with the minds of the members of the Khaos Brigade. Doing war again? That's a ridiculous thing but he can't argue that through a war he can be as strong as he is today.

Yes, he remembered all those memories. Memories of his life, from a weak in the beginning to being what they are today. Happy and sad memories mixed in it, though it's been past tens of years, he felt he couldn't forget it.

That's normal. A memory, especially a valuable one, can't simply be forgotten.

"Okay. Because you can do it, don't carelessly give it, especially to someone who may betray or not you believe. Understand?"

Ophis nodded her head, making Kazui smile with pleasure.

"So how is it? If we were still living here, most likely our place will be discovered and great panic will occur—some high-level devil that will try to arrest you or others. I'm scared and worried if it happens."

Ophis just stopped listening, as she was thinking of something. This is the first time Kazui sees this side of Ophis. He even raised his eyebrows, feeling confused and shocked. Does this mean that Ophis's emotions or actions are progressing? Kazui hopes it happens.

"I... still want to... stay here, Kazui... sorry..."

Kazui just grunted at it and give her a light smile.

"It is okay. I know that. Looks like you're already comfortable in here, huh?"

"Um. I'm... already comfortable. The people... Aculard-san... they're all good... to me..."

That makes Kazui stroking Ophis's head. She became unwilling to leave immediately. Moreover, they only about 3 months stay here, not yet up to a year or two years.

Although Kazui know if they—especially Ophis—be targeted by the three fractions, especially devil fractions; he can't do this to Ophis. Perhaps by staying for tens, hundreds or even thousands of years here isn't bad either.

'Somehow it's look like I spoiling her...'

Inevitably, Kazui must stay here. Not going into the human world for a while. Although he could have overcome some or a lot of devils who want to fight it later on but it would be troublesome.

'Being too strong and having the power of a god made me not even want to be serious. But hey, that doesn't mean I'm underestimating the power of others but I'm just telling the truth.'

Yes. The young man knew exactly what power he has and knows the limit of the person who will he face or into his opponent. He didn't underestimate his opponent as long as it didn't irritate him.

Therefore, when he first met Ophis and knew how much power she was, he was calm and didn't feel threatened. Almost all creatures in this dimension is weaker than him. That's what Kazui think. Is it because he is a God? Or because he comes from another dimension? I don't know, that's the unknown.

"Okay. We will settle here. Even though I'm 85% sure we will deal with the Devil King, Khaos Brigade and others. As much as possible, I will protect you."

Ophis looked at Kazui with such a deep gaze that she was so focused on Kazui's eyes that radiated faith. The girl just nodded and agreed.

"Ah, I know if you're stronger than them but hey, at least I don't want to be left behind and do nothing. If I let go of the Black Hole of mine, maybe it is the fastest way to fight an enemy much like before."

"Black... Hole... your power is unique... Kazui..."

"Well is it. Thank you."

Kazui only grinned broadly when he heard praise from Ophis. He and Ophis already know the capabilities of each other, though not all.


[Kyoto, Kion District - Youkai Fraction Area]

Seen a temple so big and built in the year 656. It is a temple which is also known as Gion Shrine, and also as a protection of the empire in the year 965 in the Heian era. But in this moment, this place inhabited by supernatural creatures that can be said is Youkai.

As the name implies, this temple is the shelter and the operation headquarters of the Youkai faction led by a nine-tailed fox named Yasaka. She is the leader of the youkai, especially in the Kyoto area that became her main area.

In a certain room, seen a beautiful long blond woman with yellowish gold eyes that so fitting with her sexy body that's look like a model. She was wearing a white kimono with black stripes around the sleeves and had the F-sized breasts.

The woman only grunted weakly from exhaustion and boredom while taking care of several documents that piled so much on her desk. She really hated to work taking care of this document, made her unable to play and spend their leisure time to relax.

"Hhh... I hate these papers..."

Though she hates this job, she can't escape. It is a natural law. She and the paperwork are absolutely inseparable. It really frustrates her. She has been locked himself up for almost a week, just to take care of the currently declining documents.

"Guuh... if I use a Clone Jutsu like a people in that ninja manga—"

"Yasaka-sama! Yasaka-sama! There's bad news!"

Just before she finished her word, a frantic scream came from outside her room. It made her turn towards the door of the room and could hear some knock there.

'A bad news...? What is that?'

Feeling confused and don't know it, she was trying to welcomed one of her subordinates to enter into her office. The door of the room opened and a man from her fraction had a panicked face, even he was breathing heavily.

This makes Yasaka even more confused. What actually happened?

"Y-Yasaka-sama...! I-I—"

"Calm down. Stop and take a breath for a moment. After that, you can explain."

"Y-Yes…"

Yasaka also stop her activities, then asked something to her subordinates who are now already calm.

"So... what's up? What makes you screaming like that? Bad news about what?"

"O-Ophis... she..."

"Why with Ophis...?"

"She disappear!"

This makes Yasaka raises an eyebrow. It was the first time she had heard that Ophis was disappear. Actually the Youkai faction seeks to be neutral in the affairs of three famous factions such as Devil, Angel and Fallen Angel but because Ophis is a dragon race, then that doesn't apply.

If Ophis disappear, the balance of supernatural beings power would likely collapse. It would lead to unrest, as has happened in recent months. The Youkai faction didn't want that to happen to them either.

"Is it true?"

"Y-Yes, Yasaka-sama! Karasu-Tengu-sama himself who said! He got the news from Nurarihyon-sama!"

"Tengu and Nurarihyon? So it's like that, huh."

"Y-Yes, Yasaka-sama! What should we do?"

"Hmm... actually I don't want to ask someone for help but immediately contact the Four Devil King, Azazel and Michael. I want to hold a meeting about this with them."

"Yes! I'll do it!"

Yasaka nodded understanding and her subordinates immediately rushed out to prepare everything for the sake of meeting in discussing the disappearance of Ophis. The woman could only shake her head and sighed heavily for feeling overwhelmed by this.

'For Izanagi's sake, why could Ophis suddenly disappear like this? What happened exactly?'

Trying to ignore the things that make her more stressful, Yasaka returns to take care of these stacking documents. It's really shocking day for her, for a Yasaka which incidentally is a lovely woman and is still unmarried.


Seen a place or room that is so similar to a robot lab with some strange objects around it. There are even some objects such as capsule tube or others that fill the room.

Inside the room, there was a black-haired man with a gold-bangs and a black beard that had a purple eye wearing a white lab jacket and holding a bottle containing something in it.

"Hohoho. This Sacred Gear also interesting. I didn't know that something like this is exist."

"Azazel! What are you doing?!"

"Hm? Ah, Baraqiel. Don't shout like that. The world is not yet end, you know?"

"What I'm going to say really feels like a doom will happen! This is important news!"

The man who was called Azazel was only able to put up a confused face to hear the words of his co-worker named Baraqiel. Baraqiel is a burly man with black hair and purple eyes.

"What's wrong?"

"It's about Ophis. She disappear."

This made Azazel lift an eyebrow in surprise with his words.

"Heh? Disappear? Are you serious?"

"Very serious. This news has spread, even the Devil fraction already know it. I don't know about the other factions but if this is true, then the Khaos Brigade action was really related to the disappearance of Ophis."

"Khaos Brigade huh... so it's like that. Knowing Ophis disappear, they can't use Ophis as a source of their power. Am I right?"

Baraqiel nodded at the reply from his co-worker. Azazel only snorted softly while chuckling.

"Kukukuku. No wonder their recent actions were so unfocused. Even to terrorize the Underworld. Fortunately, this place, Grigori, was not hit by the target of their attacks. If it hit, maybe Grigori will not last long."

"Azazel! Don't even joke! It's a serious matter!"

"I know, I know but it's useless to panic, isn't it? Now that we know what's going on, better get ready to face what will happen later. Understand? Alright, I want to continue researching again."

Baraqiel only growled and gave up on the lazy and indifferent behavior of Azazel, his co-worker and friend in response to the current situation. He only hopes that bad things do not really happen later.

"And oh right, Azazel. There's something else I want to tell you."

"Hm? What is it? If it's not important, just ignore it."

"Yasaka invited you to a meeting to discuss this Ophis problem."

Azazel was surprised to hear that. He was confused and curious, why Yasaka wanted to invite him to a meeting. Is it because he is the leader of the fallen Angels faction? Maybe.

"Fine. Just tell her I'll come."

"Hhh... okay."


In a room, a room that full of people wearing white lab coat like a researcher and there are some people that have a white wing like dove have, something implanted in their chest. It's a card. It seems these people are doing an experiment.

"Hm... the result is good too. What about the blessing of the priests and the holy girl?"

"Very good! Everything is almost as you expected, Michael-sama. But it is rumored that there is a group of priests who want to do something to humans who have the potential to become priests and holy girls."

"Oh? What is that?"

"That is the Holy-swords project, Michael-sama. Indeed we are also doing the Holy-swords project but what they are doing is really over the limit, it can be called what they do is illegal and inhuman, ignoring the prescribed ban."

The person who Michael called could only raise an eyebrow when heard it and snorted softly while putting his friendly smile on one of his subordinates.

"I know it's none of our business to interfere with human problems but if this is against His will, then do what must be done. Punish them."

"Will do, Michael-sama!"

"Thank you and is there something else?"

"It is, Michael-sama."

"Oh? What is it? Please explain."

"Yes! From what I get, today's supernatural world is struck by the existence of the Ouroboros Dragon or the Infinite Dragon Ophis who suddenly disappears without a trace."

"... Ophis? She disappear?"

"Right, Michael-sama. It says the disappear has been going on for 3 months but it is only known and confirmed today. Many from other factions also a terrorist organization called Khaos Brigade are trying to find Ophis."

Hearing the name Khaos Brigade, Michael became serious. His gentle look immediately changed when he heard it. According from what he's heard, Khaos Brigade is a terrorist organization that seeks to realize the ideals of Lucifer who wanted to rule the world.

"And, Yasaka the leader of the Youkai faction wanted to hold an important meeting on this matter, Michael-sama."

"Yasaka-dono?"

"Yes. She intends to invite leaders of three factions along with the other Devil King to Kyoto. Four Devil King and Azazel has been successfully contacted and will attend the meeting to be held in Kyoto. Do you want to come, Michael-sama?"

Michael also nodded and smiled kindly to his subordinates.

"Of course. Please tell Yasaka-dono, Sirzechs-dono and Azazel that I'll come. Prepare everything."

"Right, Michael-sama!"

His subordinate immediately went and prepared for Michael's departure. This handsome man that always smile could only shake his head as if not believing what he just heard for the last moment.

"Oh Father, I really don't know how to deal this without you."


AN: Alright folks, thanks to MAuthorian-WarriorOfBirthright for be my Beta Reader. It's my first time to do the Beta, so forgive my stupidy for that.

And well, for the harem, here the list:

Kazui harem:

Confirmed by the author:

- Ophis (Main)

- Serafall Leviathan

- Gabriel

- Valerie Tepes

- Ravel Phenex

- Toujou Koneko [Shirone]

Still not sure/confirmed:

- Kuroka

- Yasaka (I know that there someone who don't want married woman in the harem, but because of this timeline is going to different than the canon, you can decide it)

- Sona Sitri

- Hanakai Momo

- Rebecca Randall (Dragonar Academy)

If you want, please vote it! Review, favorite and follow the stories, guys. :)