The Devil King

Summary: Harry made his way to Gringotts after blowing up aunt Marge to get some money only to learn that he had a lot more than he thought. When he does an inheritances test he learns that when he died in the Chamber of Secrets and then brought back it awoke a long forgotten power within. Now he hast to deal with not only the backlash of the wizarding world but also has to avoid being killed by anyone who finds out who he is. Will be a slash.

Heads up I own neither High School DXD or Harry Potter. Sorry but haft to say that.

Random info. I'm bumping up the timeline a bit in that harry was born in 2000 instead of 1980.

Harry's Peerage:

Queen = Vali Lucifer Age 14

Bishops = (Maybe Luna Lovegood)

Knights = (Maybe Draco Malfoy)

Rooks = (maybe Fred and Gorge Weasley age 15)

Pawn = (maybe Colin and Denis Creevey, Maybe Theo Nott )

I don't know where to put Neville Longbottom. Ideas?

Chapter 1

Harry made his way through the crowds as he headed to Gringotts. While he trusted that the minister had paid for him to spend the night at the Leaky Cauldron he needed some money to feel more secure.

Once at the bank, he made his way through the line until he was called up at the teller, "Key, please."

"I don't have it. I was never given it," Harry said.

"I see. Well, head over to accounting and they will sort you out with new keys," the goblin said with a hint of malice, "Next!"

Making his way over to the accounting desk he was met with yet another goblin that was sneering at him, "May I help you, human."

"Yes, I was told I needed to come over here to get new keys since I was never given a copy of my current one," harry said.

"I see well wait a moment while I contact an account manager to get you new keys," the goblin said.

A few minutes later he was told to follow a goblin to one of the back rooms. As he arrived he was rather impressed with the oak door and desk with gold and hardwood colouring the office.

"Greetings I am Armstrong a general account manager for Gringotts what can I do for you today," Armstrong said.

Trying to give the goblin a smile but it came out as more of a grimace as he told the goblins for a third time why he was there, "I'm Harry Potter and was hoping to get replacement keys and I was never given a copy of the original."

"I see," Armstrong said as he started pulling out a potion, parchment with runes along the edge and a crystal bowl and a small needle.

"Um, what are you doing," harry asked a little scared.

"I am getting a inheritances test ready as it is the only way to tell what a person truly owns," Armstrong said as he poured the potion into the bowl.

"Oh. Okay," Harry said as it sounded reasonable seeing as not only did the wizarding world have no for of ID what so ever but there were also a huge amount of spells and potions that allowed someone to change the way they looked, so it only made sense that thy would need to do something like this.

"It's ready now in order to start the test you need to put three drops of blood into the potion. The rest is for it to be absorbed into this parchment here. Once it is absorbed it will tell us what vaults are available to you, what you are owning and to who as well and what is owned by you. So shale we get started," Armstrong asked.

Without any prompting, Harry reached over and grabbed the needle and pricked his thumb letting three drops fall into the bowl and turning the once white potion black. Letting the parchment fall into the bowl of potion Harry and Armstrong only had to wait a few moments.

Once the potion was finished being absorbed Armstrong pulled it out and presented the parchment to Harry. Looking down he was able to see for the first time what he truly owned:

Vaults:

687 Potter Trust vault 5000g

704 Potter vault 7,865,064g, 21,543,789s, 17,987k

348 Harry Potter vault 12,247,300,654g, 36,895,326,789s, 46,787k

113 Black heir vault 10000g

Debs:

Gringotts 4800g

Owed:

Rent on cottage Godric Hallow (See ministry of magic)

Conquest from defeat of Tom Riddle (See Gringotts)

Commission from Harry Potter Books (See Gringotts)

3,567,000g owed to the Potters by the Greengrass's for unlawful claiming of Griffons Keep.

Note:

There is active high or higher level devil blood in this human. Advised that they buy a set of evil pieces to avoid being killed by devils blood poisoning.

Harry was stunned as he looked at the parchment. He was a Billionaire. When you think about how one galleon is worth ten pounds that make it quite possible he was one of the most loaded kids ever.

"What do these mean," Harry asked as he pointed to the debt of conquest and the commission debt.

Armstrong got an evil grin as he looked at what Harry was asking, "Those Mr Potters are particularly nasty debts that we simply must figure out right away. For instance, due to there being quite a few books using your likeness without your given consent you are given a percentage of the profit. Now the amount normally given in these cases is about thirty percent. Does this work for you?"

"Ya that sounds good," Harry said a little dazed.

"Good, good now onto the conquest. See as you only defeated the Dark lord to the point that he lost his body you can't claim everything but on that same note, you are able to claim up to sixty percent of everything that he and his slaves owned," Armstrong said far too cheerfully.

Looking up sharply Harry asked, "slaves?"

"Yes the dark lord used the dark mark for many things. One of which was a slave brand. That's why it had to be taken willingly," Armstrong stated.

"I see," Harry said with a hint of disgust of someone willing to do that to themselves, with that in mind Harry gave his answer, "Take as much as you can."

"Very well," Armstrong said as he made some notes on a piece of parchment, "that then leaves only the question of the evil pieces and your devil's blood."

"What do you mean by devils anyway," Harry asked slightly afraid.

Taking a moment to think before answering Armstrong finally answers "Devils are a race of being who were born from their god Belial. Now Belial wasn't evil but he was dark. Anyway, no one really knows much about the origin of the gods only that they are powerful. Now when Lucifer was cast out by the 'God of the Bible,' Belial offered to take him in. Anyway, the 'God of the Bible' didn't like that and shortly went to war that ended with him murdering Belial what he was protecting some humans. This then leads to a large number of angels falling from grace and creating a third faction. But with the death of Belial, the angel was able to claim that he was evil and that what they did was right. Lucifer was enraged at the desecration of another god those took over his kingdom while searching for Belial's heir that he had among the humans. Less than twenty years later the great war started and the angel would deliberately hit as many humans as they were able in order to hope to end Belial's line for if a child of Belial were to find a way to become a full devil they would gain all of Belial's power plus their own."

Taking a while to think about what he had just learned Harry finally asked, "so devils are really just angels who worked for this Belial guy instead of god and really hate the 'God of the Bible' because he's a murdering ass hole."

"Was," Armstrong said, "he was a murdering asshole. He no longer is alive as he was killed in the sealing of the Heavenly Dragons the twin dragon emperors."

"Good," was all Harry could say in regard to the death of God.

Laughing a bit at Harry's childish response Armstrong asked his next question, "Mr Potter I know this a bit invasive but would you be willing to tell me what type of toxin you came in contact with. Devils blood only ever shows up after the third generation if exposed to powerful toxins as a way to try and counter the toxin."

"Dose Basilisk venom count," Harry asked almost innocently.

Letting out a long-suffering sigh Armstrong replied, "That would do it. If you had any devils blood at all ever in your family tree as long it was there that would wake it right up."

"Okay," Harry said hesitantly not really getting what was so important.

"This could be a problem as it means that not only are you a high-class devil but you most likely are so removed from the nobles that it could upset the balance of the underworld. With that in mind, we only have three pieces of business left. So let's get you your key's first then go from there."

Quickly pulling a box from his desk Armstrong quickly put the number of each vault into the box and it produced two keys, two cards and one bag for each vault.

"Thank-you," Harry said as he put the cards, into a wallet that was provided and the keys onto two key rings that went into his pocket the bags were slipped onto his belt.

"The cards are for the non-magic world and work as bank and credit cards respectively. The bags are tied to your vaults for shopping in the magic world just think about what you want. Both are tied to your magic but for your cards, their pins are your vault numbers with a zero on the end. They won't work for anyone but you so be warned. Now onto our last two things on out agenda. One is the price for the evil pieces now you need to use these as devils blood is toxic to humans. The only way your living to see twenty is if you turn into a devil. Now that's not a bad thing just remember what we already talked about. The other thing is your bill for both my services and your vault fee for the last twelve years. Is this exceptionable?"

"Ya that's fine," Harry said feeling a bit overloaded.

With a nod, Armstrong produced two pieces of paper and handed over a quill and some ink.

Quickly looking over the paper and seeing that they were indeed what Armstrong said they would be Harry quickly signed them before handing them back to Armstrong.

Giving them a quick look over himself before stamping them. After he lifted the stamp the memos vanished with a small pop leaving only a wooden box on the desk. Inside the box was a clear chest set.

"These are the evil pieces I was talking about. Now the these are used to reincarnate a being into a devil. This is done by fusing a piece with a recently dead, dying or willing being you wish to add to your peerage. Your peerage is yours responsibly. It's your job to take care of them just as they are your servants you are their master. The number of pieces you need to use to reincarnate a person as a devil is based on your own power. For example, your queen can be haft as strong as your overall devil strength. Any stronger and the piece will mutate. If a piece mutates then the reincarnated devil can't be subjugated easily. Now simply lay back and put the king piece on your chest and let it sink in. Once it has finished we will be able to tell what devil house you are descended from. Now before you panic, you will technically die and come back so don't worry."

With that, Harry found himself on a fairly comfy couch with the king piece on his chest letting the cool energy into himself.

Once the piece finally sunk into there was a moment of silence before Harry's scar split open and a screaming shade fled from Harry's body where it had been a house for the last twelve years.

An hour later Harry let out a strangled gasp as he returned to the land of the living as a devil.

"Welcome back Mr Potter or should I say High King Harry James Potter Belial. Really you don't know how to do things haft way. You couldn't be related to one of the lower houses now you had just to be the new Belial," Armstrong said in a tired voice, "Well off you go. You have your evil pieces and all your accounts are in order. I have already sent a letter to the underworld to let them know about you and to send someone to get you. My advice is to rent a room until you meet another devil that can take you to the underworld."

With those parting words, Harry made his way out of Account manager Armstrong's office with the box housing his evil pieces clutched tightly in his hands still reeling from the fact that he was no longer human and very likely could be a god of some type.

Really Armstrong nailed it when he said Harry couldn't do things haft way.