Hey what's up guys, I'm Warmachine375 and I made this fanfic spin-off crossover story between WarCraft and Nanatsu no Taizai called "Sins and Orcs". Made this out of my imagination of sorts in my little brainstorming coming from my head. Hehehe.

Summary: Having succeeded in stopping Mannoroth's attempt to bind the orcs into the fold of the Burning Legion and united all the clans of Draenor into the Iron Horde, Garrosh Hellscream prepares for a full-scale invasion on the main timeline to destroy his enemies once and for all through the realigned Dark Portal but instead arrives in the land of Britannia on an Earth-like world filled with magic, powerful warriors, majestic creatures and monsters...and pigs? Nonetheless, all will fall before the might of the Iron Horde!

The setting of the story takes place the beginning of the events of the Warlords of Draenor in World of WarCraft and in Nanatsu no Taizai, the past events in the kingdom of Liones before the start of the said manga/anime shounen medieval fantasy series of Nakaba Suzuki.

Disclaimer: I own nothing of WarCraft and Nanatsu no Taizai. They respectively belong to Blizzard Entertainment and Nakaba Suzuki. Purely for fun. Hyped for the upcoming WarCraft 2016 film and enjoyed the NnT manga and anime progression of the series! Hehehe.

Enjoy reading and don't forget to review. :D

Chapter 1

Everything is proceeding perfectly according to his great iron will.

Garrosh Hellscream, son of the late Grommash Hellscream had successfully prevented the orcish clans from drinking the blood of the demon lord Mannoroth of the Pit Lords, which led to their corruption by the Burning Legion and united them all under one banner of the Iron Horde! All thanks to that foolish rogue bronze dragon named Kairozdormu who saved his life from captivity by the combined Alliance-Horde force and avoid to face trial for his atrocities he committed in Pandaria and sent him to the past 35 years in the world of Draenor to change the course of history only for Garrosh to kill him in return.

And as of now, the Iron Horde equipped themselves with the weapons and technology Garrosh had brought from his reality to increase the fighting effectiveness of their forces and readies for war against all who dare stand against its iron will as the Dark Portal is set in re-alignment to the main timeline of Azeroth where Garrosh Hellscream will finally destroy his enemies once and for all with the full might of his Horde!

He could smell his long-awaited righteous vengeance against the Alliance that always dared bar him from his right of conquest in the whole world of Azeroth and the Horde for turning against him nearly into his grasp!

"Warchief Garrosh, the Dark Portal has been re-aligned into the present timeline of this world of Azeroth as you requested.", Gul'dan said whilst bowing respectively yet a bit mocking to the Warchief of the Iron Horde.

Despite his great sentiments of hatred against the very orc warlock himself responsible for the corruption of his race had he not intervened on time, Garrosh nods in response and stood up from his seat while grabbing his large war-axe as he said, "Well done, Gul'dan. It seemed that you have some uses from that spineless green skin of yours after all. Now begone from my sight!"

The orc warlock was then taken away by the orc guards from the tent under heavy guard since Gul'dan can't be trusted as Garrosh exits to meet with the assembled group composed of the clan leaders and warriors of the Iron Horde: his father Grommash Hellscream in the alternate timeline, Ner'zhul, Blackhand, Kilrogg Deadeye, Kargarth Bladefist and many others who are all ready to follow at his beck and call of command.

Walking towards the already-activated realigned Dark Portal, Garrosh, with the clan leaders at his back made his war speech loudly to his rallied forces gathered before him. "Now the time has come for the Iron Horde to travel through this Dark Portal re-aligned to Azeroth where it's ripe for the taking when our enemies are at their most weakest! We are the Iron Horde! Our will is iron and our will is unbreakable! DEATH TO THE ENEMIES OF THE IRON HORDE! LET NONE SHALL STAND IN OUR PATH OF CONQUEST! WAR HAS COME TO AZEROTH!"

Everyone in the large groups of ranks of the Iron Horde had bellowed loudly with warriors' pride in their war cries in response of their mighty Warchief's declaration of war on the world of Azeroth and almost immediately charged towards the Dark Portal, ready to pillage and burn everything and kill everyone standing their path of conquest!

"For the Iron Horde!"

"Lok'Tar Ogar!"

"Our will is iron!"

"War, war, war, war!"

"CHARGE!"

But something went wrong with the realignment as the Dark Portal didn't transport them to Azeroth's present timeline as expected but to another unknown world yet to be noticed by the gazing demonic eyes of the Burning Legion still out there in the cosmos subjugating and burning millions of worlds and extinguishing races or corrupting them into their vast demonic legions.

Passing through the Dark Portal, the armies of the Iron Horde swarmed outside ready to catch their enemies off guard! But instead of a barren wastelands of The Nethergarde's Keep as Garrosh would expect resistance from the Alliance fortress built to watch over the Dark Portal after the Second War, a vast beautiful countryside filled with trees, rivers, mountainsides and a clear blue sky with clouds almost resembles that of Azeroth and Draenor when both worlds weren't ravaged by war and chaos at that time.

This has left the Iron Horde in utter great confusion on what new unknown world they have stumbled upon through the realigned Dark Portal. Are they in Azeroth as their Warchief Garrosh told them about or not?

"Is this Azeroth, isn't it?", Ogrim asked.

"Looks like it to me.", Kilrogg shrugged off the fellow orc warrior's comment with Blackhand agreeing with him.

"No, this isn't Azeroth. The Dark Portal's re-alignment must have gone wrong and we ended up here in this new world we stepped foot on. Damn you Gul'dan... At least the Dark Portal remained operational otherwise we would have been trapped in our unfamiliar surroundings.", Ner'zhul rationalizes in observation of the new surroundings they're in.

"What now, son? What do we do now?", Grom asked his son.

Salvaging the situation, Garrosh then replied to his father in his tone of authority and power as the warchief of the Iron Horde. "Azeroth will come later. As of now... THIS WORLD NOW BELONGS TO THE IRON HORDE!", as he yelled in proclamation as he decided to conquer this new world he stumbled into, followed by the approving bellows and shouts from his armies including the leaders of the orc clans.

If this is the new world they have accidentally arrived on, then let it be their huge target practice and exercise for their future conquest of Azeroth!

Realizing few humans wandering around in the fields either tending to their farms and sheep or walking around on the road, this may be a great opportunity for Garrosh Hellscream to give the Iron Horde an experience in fighting humans once they realign the Dark Portal again to Azeroth and know how to fight one of the main races of the blasted Alliance! He has yet to confirm in his suspicions if this new world may have similar races from Azeroth or Draenor or new ones he never seen before but regardless all will be crushed under his iron boot!

Spotting a nearby large town identified as Dalmary Town situated near a large mushroom-like structure also identified as Baste Dungeon by unlucky human travelers the orc scouts had captured and interrogated, the Iron Horde moved in quickly and had quickly subjugated it and the inhabitants under its control and easily stomped out any pitiful resistance the humans of this world put up against the orcs as they massacred the local militia and knights stationed there with relative ease. However, some of the surviving villagers and other soldiers managed to escape and fled to that massive castle for protection.

Few dozen remaining militiamen and knights in Dalmary Town were left standing with the rest of their fellow comrades were easily killed by the orcish warriors equipped with technology they have never seen before.

"Who... and what... are you foul... beasts?!... You... are no... barbarians from the north... nor even human.", a battered and bloodied knight demanded with his sword brandished at the orcs. How dare a human act boldly even with the odds standing against him yet still standing defiant in face of the Iron Horde.

Ogrim Doomhammer spoke in reply to the knight's demand. "We are the Iron Horde, human and your world belongs to us now. Your race is doomed from the beginning the moment we stepped into your world. Surrender and I will give you a warrior's death."

"Y-you... won't get away with this beasts! T-the... the... Holy Knights... of the... kingdom of Liones... will annihilate you all curs!", the knight said his last words before being smashed into a crushed-up pulp in his armor when he charged at his last moment courtesy of Ogrim's warhammer, Doomhammer. And the remaining resisting humans either fled or fought to their last like true warriors.

After securing the town and their forces establishing camps while looting and plundering everything they see in their path as well as capturing and interrogating prisoners for vital information of the new world they stepped on, the Iron Horde had gained its first foothold in Britannia.

Pondering on the dying knight's words of warning, Ogrim Doomhammer wondered out loud. "Holy Knights? Coming from the words of this human, they must be formidable warriors of this world we stumbled upon."

Ner'zhul spoke to the orc warrior. "According to the human prisoners we interrogated earlier, Holy Knights are the most powerful knights in this land they call Britannia of this world and terrfiying individuals with the strength and power each able to match an entire country's army and possess magic that transcends human knowledge imbued in their bodies."

"Bah! These human exaggerate a lot, Ogrim. Full of pride and stupidity in them, I believe. They're the same as these knights we defeated once we kill them all.", Kilrogg scoffed at the claim of the powerful knights of Britannia while other clan leaders and warriors either doubted or wondered if they were true about the Holy Knights.

Garrosh would not want to hear any of such overly-exaggerated claim about these so-called Holy Knights and thinks of them as weaklings ready to be crushed by the Iron Horde as he said loudly, "Let them come! All will fall before the might of the Iron Horde. Now, Blackhand I have a task for you. Capture that large fortress 8 miles from this town we took over. It will be our new main base of operations for our conquest of this world. Kill everyone resisting you."

Hearing the son of Grom Hellscream, the large heavily armored Blackrock clan leader complied as he grabs his massive fiery warhammer with a malicious glee. "Yes, Warchief! The fortress will be ours for the taking!"

Turning to the rest of the Iron Horde, Garrosh then ordered to spread out throughout the entire countryside and conquer everything in their path once after they fully rallied their forces and establish a chain of command to carry out a successful invasion of this world as large regiments of infantry, cavalry and siege artillery under Blackhand now marches from Dalmary Town to claim Baste Dungeon for the Iron Horde!

Unbeknownst to them however, a rider from the fortress itself heads off to the capital of the human kingdom of Liones as fast as he can where Garrosh Hellscream may have woken the sleeping lion from its den... and the ravens started flying throughout the land of Britannia with signs of war and destruction brewing sooner than later!

Author's Note: There ya have it folks, the first chapter of"Sins and Orcs" is done and the second update will come around soon once I get my brain working again. In the next chapter, the kingdom of Liones received news of the Iron Horde's invasion of their land and mobilizes its Holy Knights including the Seven Deadly Sins to deal with them and also sent warnings to neighboring countries of the impending orcish threat.

Oh my, Baste Dungeon is in trouble and who will defend the largest fortress in Liones?

Enjoy and don't forget to review and enjoy! Comments, advise, ideas, suggestions and criticisms are always welcome. :)