Hello everybody - this is my second fanfiction so far, it's about a boy known as "Vali" and focuses on him instead of Issei in the story.
I tried to research as much as possible about Vali's backstory so that I can give an accurate representation as well as a non-canon backstory too.
Warning: There will be NO sexual content, but there will probably be relationships - each chapter is going to have at least 2,800 words. Also, there WILL be swearing.
Also, the backstory is in NO way official, it is just how I planned it to be so please don't send me messages saying "omfg its not accurate".
Anyway, like I said, this focuses on Vali, each chapter will have at least 2,800 words and there will be relationships later on in the story.
I didn't like my last one too much, it was too OP if you ask me.
I do NOT own Highschool DxD - this is a fanfiction created by me, that is based on Highschool DxD. Thanks.
Also: This takes place in a time where most of the High School DxD plot hasn't happened.
An example of this is that no peace treaty has been signed.
So do NOT be surprised if I include events earlier or later than expected.

[Dragon speaking]
~[Dragon speaking aloud]~ or [Dragon speaking] in bold.
{God/Spirit/Unknown speaking}
"Non-dragon speech"
'Thought for all races'

Vali in this story: /yftPb1Y

Clearing: True Black Dragon doesn't exist in the real story. In this UNOFFICIAL story, there are three kinds of Heavenly Dragons, not two. You have the Red Dragon Emperor, White Dragon Emperor and another Heavenly Dragon known as the True Black Dragon Emperor. The latter is a mystery, yes, it has been sealed, but it is a more threatening type of dragon, just outside the rank of being an Evil Dragon. The latter is more of a formal dragon who has a terrible temper. The host automatically gets affected by the dragon's curse, or the "Dreaded Seal".
The Dreaded Seal gives the host 75% of the dragon's mentality, for exchange of 50% of his non-physical body. This technically makes him 50% dragon and 50% human.
However, the dragon hasn't been awakened yet, and his full name is yet to be known.

Story Start (POV: Third Person):
-

"Huh? What is this place?"

Vali was in a gigantic forest, with a calmful atmosphere. A river was delightfully flowing slowly down a precisely trimmed lane, the sun was reflecting ever so slightly off the river, birds were flying and chirping - and the weather was calm, a bit cloudy and the sun was positioned at a perfect angle. A cave was nearby and Vali walked near to the cave only to observe a 60 meter tall black western dragon suddenly appear before him.

["This is a dream, partner."]

"Who are you? I'm scared.."

[I am the third strongest dragon in the universe, Zodiac. I am known more as 'The True Black Dragon Emperor' and I am a Heavenly Dragon."]

"Dragons exist?!"

[Hush - you don't have much time until you wake up, so listen:]
[I am living in your body via a Sacred Gear which I am sealed in - a Sacred Gear is a neat little system that The God of The Bible made that gives users magical powers. Among these are the Longinus. Longinus are the top-tier Sacred Gears that have the most threatening potential. A Longinus can destroy the entire Earth if it needed too and has the potential to destroy a God. However, the Sacred Gear you possess which is the one I'm sealed in is one of the best Longinus.]

"Woah! That is amazing!"

[Also, unlike the Boosted Gear, I am kept in a pair of light wings, but instead of blue light wings, mine are a transparent neon green despite being the black dragon.]
[Anyway, boy, you seem like you have potential as the strongest Black Dragon Host ever.]
[Right now, you are 8, right?]

"Yes, why?"

[Since you have awakened me at an earlier time, you have more time to learn.]
[In the morning, eat your breakfast - and from that point, you can run away from your abusive parents or you can deal with them and never reveal me, which will make you a useless host.]
[Since you have awakened me, three quarters of your mentality is replaced with mine, and you are 50% dragon, or a half-dragon. You will now act formal, laid back and bored most of the time, but when a fight starts, you turn into a non-sexual sadomasochist. Hopefully, at your young age you understand what that term means.]
[I have to go now, call my name, Zodiac, in the morning quietly and I will answer you.]
[However, I have a unique ability to enhance things. I can make a storage pack with an extract of my powers in if you want, so that if someone ever cancels your Sacred Gear, you can still use them.]
- Timeskip: 4 hours later - "Was that just a dream?", Vali muttered.
"I think it'd be necessary to test."
"Hey, umm, Zodiac, are you real?"
[Yes, boy. I am real. Do you wish to run away after having breakfast?]
"I don't know, I shall decide that later."
"Zodiac, how can I release my wings?"
[Concentrate carefully and tense your back up - they should release.]
Vali tensed up and concentrated on his back and to his own surprise, despite being told by Zodiac, he still couldn't believe that this was happening.
"WOAH. This is amazing!"

Vali's parents yelled at him, "Vali! Come downstairs now! You have to have your breakfast. Take it and then leave. Okay?!"
Vali ran downstairs much to his parents surprise as he normally didn't talk to them.
As soon as Vali finished his breakfast, he got up, and ran away.
"Hey! VALI! WAIT!" shouted his parents.
As soon as he was sure that he lost his parents, he deployed his wings and flew at half of his speed, until Zodiac had something to say.
[Partner, you're running out of stamina due to your basic body form right now. If I were you, I'd stop using your wings for a second.]
"Zodiac, I want to get as far away as possible from my parents, so could you enhance my speed? I want to travel as far away as I can until I complete run out of stamina - who knows what will happen to me then?"
[Fine.] replied the prideful dragon, a deadly black aura came from the host, and now he was faster than before.
"Why do I feel so strong now?"
[I have just enhanced your speed and attack.]
[Fly onwards if you want to get away faster.]
"Ah, okay!" but before he could, his wings were drew back in and he grunted in pain as he crashed into several trees below.
[Your stamina is the limiting factor, if you had more stamina, you would not have fallen down. Blame me for not warning you, partner.]

"Ahaha, what do we have here? A little boy in the forest alone." said a voice emerging from the bushes, she had a very revealing outfit on that made Vali wonder why she wasn't embarrassed at all.
She formed a red light spear, and threw it through the boy's chest. Blood gushed from Vali's mouth and open wound, slowly fading away from consciousness.
"AUGH!" Vali fell down and died while holding on to his chest, where the wound was.
She smiled and spread her black wings to fly herself off to another area.
"Is this it...?"
"Am I dead now?"
"Ah, well, at least I have peace. Peace is a lot more fun than shitty communications that aren't even necessary. There are loads of c-complaints ab-about this world that I-I have. And n-now, I won't need to see them a-again.", Vali said as he was now hanging on for his dear life.
As Vali closed his eyes, another Fallen Angel going by the name of Azazel came down, he noticed that Vali was the host of one of the Heavenly Dragons, so he healed him up and took him to the Grigori where he would later train to become one of the strongest beings on the planet.

- At the Grigori, a day later

Vali woke up in a dimly lit place, he didn't know where he was and actually thought it was prison for a second.
"Mornin'. I see you have awoken, Vali Lucifer-san."
"Yes. Why am I here? Actually, no, scrap that, what even is this place?"
"This place is the Grigori Research and Training Lab, you live with us Fallen Angels now. One of our subordinates, Raynare, was asked by me to watch over you, but she went too far - she actually attempted to kill you. I found you and healed you up before those Devils and Angels could get to you - although you're not a Fallen Angel, you will still train with us and come and participate in our missions."
"Hey, excuse me, but are you Azazel-sama?"
"Yes, I am the current Governor General of the Fallen Angels and I am one of the leaders, Azazel. You will work under us as one of our leaders due to your immense strength."
Azazel then fired loads of aura towards Vali, and Vali took it - Vali suddenly felt a burst in power and he had 6 sets of really dark Fallen Angel wings, his wings were not as black as Azazel's wings, meaning Azazel still had more raw power than him.
"Wow, thank you, Azazel-sama."
"No problem, but there is no need for adding -sama to my name. You can just use -san or something like that."
"Ah, okay. I guess I'll go explore my home world for a few years then. Contact me at any time. You'll probably detect my aura anyway."
Vali then opened his Fallen Angel wings and flew back to his house, while being affected by the stealth spell that Azazel had casted on him as Vali couldn't yet mask his aura, or teleport.

- Timeskip: 4 years later (SORRY for the timeskips, had a severe case of Writers' Block)

Vali was now 12 years old, he had already went to almost all of the places that he had wanted to go to, except for one, and that place was where the legendary, former Dragon King Tannin lived.
Tanning was an ultimate-class reincarnated Devil, as you can tell by his appearance, he was a dragon - and not just any ordanary dragon, a Dragon King. I heard he reincarnated into a Devil to save his own Dragon species that were living nearby. Vali also looked like a more creepy and young version of Azazel, he wore a pitch black suit with a little slot in the middle where you could see his institutional white tee. His tie was packed neatly inside his suit, exactly in the middle. He was also wearing pitch black trousers and had pitch black hair with eyes that had a crimson tint - overall this made Azazel seem like a cute little kitten compared to him.

Vali had been training himself, he asked Azazel about 2 years back on his Fallen Angel powers and Dragon powers. Azazel replied "As a leader-class Fallen Angel, you can form extremely large light weapons, you can fly, you can cast some spells, and you have two forms - well, four for you, as you are a half-dragon. The two Fallen Angel forms you have are the human looks that you possess right now, and a more menacing version of yourself. In this menacing form, you're taller, way more muscular, and you look like you're about to kill somebody.
As a Half-Dragon with 75% of the 3rd most powerful dragon's spirit, you can use Balance Breaker, Juggernaut Overdrive, True Black Dragon God Form and you have draconic powers such as intense aura on par with Sirzechs-san and Ajuka-san combined, flight, ranged weapons, and you have the ability to fire a beam that could destroy the world a couple hundred times over. Your dragon's special ability is to store and enhance, this means that Sacred Gear Cancellers won't do much, as he can store his soul in a non-sacred gear for the host to use, and he can enhance his host and himself - however, he has limits, when storing himself, he doesn't regenerate, and he can't enhance. He can just lend you the power that he stored. I will go over these abilities so you don't go around misusing them:
1. Balance Breaker, this form wraps yourself in a blackish coloured armour, with immense power - Balance Breaker in obliteration terms means the power to obliterate the world with ease.

2. Juggernaut Overdrive, this form is an enhanced form of your Balance Breaker, which has the power to kill a God. This Juggernaut Overdrive drains your stamina and life force rapidly, however, you can replace stamina drainage with draconic power drainage, thus you don't shorten your lifespan, or get tired, but you still weaken your base power a bit. Draconic power heals automatically. Also, Juggernaut Overdrive literally takes away all of your sanity, you will rampage until you understand that everything is okay, or until you die. I wouldn't use this much.

3. True Black Dragon God Form, this form literally turns you into a Black Dragon God. You have the power of a God, and since we're talking about a Black Dragon God - we're talking about power a little bit less than Ophis' power or equal to Ophis' power. You can only maintain this form for a certain time limit. This time limit varies, it can be relatively short to extremely long depending on the amount of rage or 'fuel' you're suffering or have put into it. This also drains your stamina, you won't notice it while you're a God, but when you come out of the form, you notice the impact that it put on you. You cannot replace your stamina, this does drain your life force and you can't change that. You're a dragon, so you'll live for around 9 million years. When using this form, you lose 1000 years off your lifespan per minute.

4. Your Draconic Aura, Draconic Aura is much more powerful than any other aura from any living being, only Gods can match it, and even they have trouble catching up. You can fire explosion beams, exhale extremely hot fire, heal people and extract a part of your power in the form of darkness rods. Also, you can enhance Fallen Angel properties with your Draconic Aura.

5. Flight, you can fly with your green light wings.
You sure are an overpowered Dragon hybrid."

(Reader Note (unofficial): Vali is a human who is a descendant of the Original Maou Lucifer, he gave up his Lucifer bloodline to the Dragon, and gave most of his human half to Azazel. He is technically a Humanoid Dragon Fallen Angel hybrid, kind of like Samael. Sorry for getting y'all confused.)
"Ah, thanks for the lecturing me, Azazel-san. I'll be going now."
And with that, Issei teleported through a magic circle in the town Kuoh.
"I might need to actually be lectured, but how can I convince an academy to teach a 12-year-old?"
[Partner, do you remember what Azazel said?]
"Yeah, 'you have two forms' is what he said."
"I might change into it and see how I look. Okay, Zodiac?"
[Yeah, also I am feeling a high aura nearby. Quite high for a devil. If we can get closer, I can tell you what it is.]
[Anyway, as I was going to say, concentrate really hard and will for it.]
Vali concentrated really hard, and willed to be a 17-year old student, who looked extremely bored and had blueish-violet eyes, much like Ophis who also looked really bored - but that's not a surprise as it was born from nothingness. Vali had already remembered to mask *most* of his aura except a tiny little bit that he knew the Devils would confront him for. He did this intentionally, Vali, although being bored, liked to show off quite a lot, so he wanted to give the Devils a bit of a surprise.

Vali's New Character:
17 years of age,
Dark blue eyes mixed in with a shade of violet,
Midnight black hair,
'Cool' hair style,
Laid back expression,
Bored personality,
A bit of a show off,
Very handsome, womaniser (but not a cheater).

He walked into the school, noticed several cute looking girls staring at him, and two boys behind a bush directly adjacent to the females giving him a sharp glare.
Both of them muttered,
"Damn bishounen."
"Always taking the girls from us..."

As he walked past girls and boys and actually got into the interior of the school, the people of the Occult Research Club knew there was a Fallen Angel in the building, and from what they could tell, it was a low-class angel. Vali didn't actually go to the club, in fact, he wanted the devils to come to him. He wasn't going to attack them, but he was definitely going to at least give them a warning to not interrupt or spy on him in anyway.

- At the ORC

"Koneko, since you know Touki, use your powers to hide yourself and try and get some more information on the person."
"Yes, buchou."
"Kiba, Xenovia, if he tries to attack us, you know what to do."
"Yes, buchou!"
"And Issei,"
"Yes?"
"It's your role to silence the angel for coming onto our territory."
"Yes, buchou!"
Club time ended at the ORC and everybody left.

- Back to Vali

'So you want to spy on me, I see.', Vali thought as his heightened dragon senses detected what they were saying.
Vali grinned and was about to teleport away when he noticed an energy signal from behind him.
"Oi, devil. I know you are watching me.", Vali shouted.
Then he noticed 5 other energy signals surrounding him.
"Ah, okay. Rias Gremory, Issei Hyoudou, Kiba Yuutto, Koneko Toujou and Xenovia Quarta."
All of the devils noticed him smiling slightly and they all got creeped out at the person that hadn't even been in a single lesson yet know their names.
[Partner, that Issei kid is the Sekiryuutei.]
'Finally, some fun came in my direction.'
Vali jumped off the tall window ledge that he was sitting on, he landed on the floor on two feet calmly.
"I don't intend to fight." Vali muttered.
"You, Issei Hyoudou."
Vali turned around to face Issei and Issei flinched in shock.
"We will meet again, Sekiryuutei, or the Red Dragon Emperor."
All of the devils got creeped out at the name, Kiba and Xenovia raised their guard, and pulled up their swords.
"I told you, fools, I don't intend to fight."
Vali generated a rainbow light sword.
"However, if you want to, come at me."
Vali disintegrated the sword, all the others looked in shock, and Kiba and Xenovia rushed towards him. He could feel their aura getting closer and closer, until he spread out all 12 of his Fallen Angel wings, protected himself, hardened the feathers, and burst out loads of hardened feather projectiles.
At that point, everybody, even Rias was in disbelief.
Then Vali's dragon spoke from within him,
[Oi, Ddraig. Remember me? Ahahahaha.]
Draig was in shock and told Issei out loud.
[Issei, your attacks are harmless to him, and Rias' destruction powers would probably only cause a few scratches.
"We'll meet again, Issei Hyoudou and Ddraig."
"Damn. It was a shame that I didn't want to cause the Fallen Angels trouble. Otherwise, that'd be 1 more Devil group gone."
And he flew off with extreme speed.
While he was flying, he stopped, wrote a note saying 'I am one of the leaders of the Fallen Angels, I am a half-dragon, and I am stronger than the two Heavenly Dragons - but it would be a surprise if there was 3 of them, right? Ask Ddraig for more details on my history. Signed, ~The Black One.', he formed a black magic circle and popped the letter out of it. Rias grabbed it, and read it out towards Issei and Ddraig.
Ddraig responded,
[It's a myth that there were only 2 Heavenly Dragons, The Black One is a 3rd dragon in the Heavenly Dragon Class and is much stronger than me and Albion. The Black One is the second or third strongest dragon in the universe - said to have strength on par with Ophis.]
"H-He is as strong as O-Ophis?" everyone said in shock.
[Well, that's just a rumour - but he has certainly displayed enough strength to me and Albion to prove it.]
[And guess what?]
Rias answered "What?"
[He's joining your school tomorrow. Good luck.]
Just about everybody was quite scared, but she remembered what he said, "I don't intend to fight, but if you want to fight, then come at me.".
"He seems like a peaceful dragon as long as we don't mess with him.", Rias said.
Kiba and Xenovia, who were still hurt very badly, stood up and went home.
"That was an interesting night.", they both said.

- And that's the end of Chapter 1, if you enjoyed it, please leave a review. I tried not to rush this one, it took me a week to make and plan.
- I shall probably update this in a couple of days, but I don't have a time limit as in my opinion, it needs to be the best it possibly can be.