This is my first fanfic hope you like it and also I was kinda lazy in putting what I like to write since this is my first time doing this any way this is a seven deadly sins crossover with DXD and for some people who are thinking your answer is no there will be no romance cause this version of Meliodas is when he is still in the Ten Commandments so yeah anyway let's get on with chapter one

I DO NOT OWN SEVEN DEADLY SINS OR HIGH SCHOOL DXD THE RESPECT GOES TO THE CREATORS Nakaba Suzuki and Ichiei Ishibumi

Chapter One: The Demon's Fall

3,000 years ago Brittania

The Ten Commandments. The most dangerous demons in all the Demon Race. Meliodas was next in line to become the Demon King. But as of now, he was brutally wounded.

Flashback

In the fairy king's forest

Meliodas and his two demon brothers hear out his plan to assassinate Uriel an important archangel that would change the tide of battle in favor of the demon's side. A lowly fairy eavesdropping behind a big oak tree spotted them and hid in a tree bush listening in on their conversation.

"Meliodas this is going to be a bloodbath waiting to happen." Said the shorter younger brother wearing a red garment revealing a little bit of his chest. Wearing two metal gauntlets on his hands and feet. Having a demon mark on his top right head. He was very concerned even though he didn't show it as the plan he had just heard was sounded very suicidal.

"For the first time, I must agree with Zeldris on this one this is a very suicidal plan you have." Said the taller older brother having white hair. Wearing something similar to his brother now named Zeldris wearing a garment with a blue coloring instead of red also showing a little bit of his chest. He had gauntlets on his arms and legs just like he did and his demon mark was in the middle of his forehead. He and Zeldris would bicker because they have different methods of doing things.

"How rare of you two to agree on something but I've made up my mind, I'm going to go kill Uriel, this will win us the war against the Goddess race."Said Meliodas in a serious and firm Tone. He knew that doing this will easily win the war and the Demon Race will take over but he didn't expect his brothers telling him that this was a very suicidal plan he had.

"Fine but you mustn't take too long, when you kill her more archangels will come to avenge her by trapping you in a Goddess amber." Said Zeldris in a firm Tone. he knew the dangers of them as did Meliodas because they could easily kill Demon if one is not careful. Estarossa just sighed knowing there was no changing his mind so he decided to just give back up Zeldris a bit.

"I agree the moment you kill her you must leave-" Estarossa could not finish his sentence as all three heard a rustling sound in the trees. They turned to see a lowly fairy in the trees eavesdropping. He had a horrified look on his face at what he just heard and by the fact that they saw him. "Well, would you look at that he was listening in on us," said Estarossa in an annoyed tone. The fairy tried to escape to warn the others but one of his wings was caught in the bushes he tried to make his escape.

"Damn come on you stupid wing," said the fairy in a very scared tone. He managed to get his wing free but as soon as he did, he was hit by darkness he looked to see Zeldris with an evil smirk, then looked at his wound and realized he would die if not healed. He knew how important this was but he couldn't move and so he just laid there on the ground.

" Nice shot he shouldn't be able to get very far with his injury let alone fly". Said Estarossa in a relaxed and praising manner. He knew full well that this would irritate Zeldris but he didn't care in the slightest.

"That was the point, he lost his legs he may still be able to fly but I doubt he has the energy to even make his wings flap," said Zeldris in an irritated Tone at Estarosaa's praise but he ignored it.

"Good, that pest has been taken care of now I can move forward with my plan," said Meliodas is a pleasing tone. After they dispersed, Zeldris and Estarossa left to the rendezvous point in wait for Meliodas while he went to assassinate Uriel. The Lowly fairy they left to die had some energy left and called one of the forest animals to deliver his message.

"T-Tell Fairy K-King Gloxinia, What I T-Told you and T-That I can't Return" was all he said before he died from blood loss. The animal understood and left to King Gloxinia about what happened.

WITH KING GLOXINIA

King Gloxinia had a look of terror written all over his face at what he heard, but he suppressed his expression and nodded giving the signal to the animal to leave and it did. "Alert Archangel Uriel and tell her what's going on". The Fairies, Giants, Humans, and some Angels did as they were told, the angels went to Uriel to tell her what's happening and the rest were going to plan an ambush for Meliodas when he comes and when the plan was done the Angels came back with Archangel Uriel and explained the plan but she seemed very sad about this.

"This is going to be very risky, Meliodas is a man not to be trifled with, he will kill all without hesitation are you all sure you want to do this just for me?" Said Uriel with worry in her voice. She didn't like the fact that everyone here was ready to die just for her

"Nonsense Lady Uriel, you will be the turning point in this war when we can finally beat the demon race". Said one of the Giants with pride and

"I agree with him we will finally beat them and the world can be a peace with them gone." said a Fairy this time. Everyone was cheering and saying that they would beat and be free from the demon race's iron fist.

"Alright if you're all that confident then I'll-" she could no longer finish her sentence as She saw Meliodas bursting from the tress charging at her with his sword in hand ready to kill her as she closed her eyes waiting for the strike, but it did not come as she opened her eyes to see one of the angels in his way while she was covering her mouth. "Y-you must L-live on for the race-" he died in a fury of black flames before finishing his sentence, leaving nothing left of his body she then saw Meliodas with a smirk on the face.

"So this is where you were hiding Lady Uriel, hiding behind these weaklings, if you accept your fate now I may just spare their lives," Said Meliodas in a dark but mocking tone as he looked at her. Uriel was going to accept this but she did something unexpected. She whispered something that only Meliodas could hear.

"What did you say, bitch." Said Meliodas in an annoyed tone.

"PURGE!" she yelled aloud then a white light was blasted through Meliodas's chest as he cursed in fury as he was blasted away into the trees.

"You miserable Bitch". He spoke with his hair foreshadowing his eyes.

Flashback End

With Melidoas

He was furious beyond belief, his darkness magic was healing him and he was back to how he was when he first arrived. "You will pay for that with your LIFE!" said Meliodas in a furious and demonic tone. That's when his magical power spiked throughout the area his clothes violently ripping off as darkness surrounded him.

With Zeldris and Estarossa

Both of them suddenly felt a surge of magic where Meliodas should be, they grew a horrified look on their faces

"Z-Zeldris you don't think he went into his assault mode D-do you?" Estarossa was stuttering as he felt the magical power rise and rise and he grew fearful. Everyone feared when Meliodas went into his Assasult Mode because he becomes the strongest Demon other than the Demon King.

"I think he did, but the question is..." Zeldris pondered a bit "Who or What could have infuriated him to that level." Said Zeldris in a concerned tone knowing that Meliodas's bloodlust will increase when he is like this.

Back With Meliodas

Darkness surrounded him, many fairies and a few Humans passed out from the amount of magic that was being outputted from Meliodas, Some were barely able to stand and Uriel looked horrified at what was about to come. Then the magical power suddenly stopped, then they all looked at Meliodas while he had an angered look on his face. He had a dark cape reaching down to his lower back, his chest and arms were revealed and darkness on his lower body. He was engulfed in darkness, black wings sprouted out violently through his back. He slowly raised himself to the sky and charged up a ball full of darkness, the ball was bigger than Meliodas, it would surely wipe out everything in sight, the ball was massive and ready to vaporize anyone and anything in its path. But before he could use this massive dark sphere of oblivion, the archangel Uriel shot a penetrating light toward him making the dark sphere go to dust, for the first time Meliodas felt defeat, a feeling he thought he was above, Uriel strolled up to him with a blank and intense stare as Meliodas was laying on the ground, badly beaten. She was about to trap him in a goddess amber put Zeldariss flew in fast and quickly grab his badly beaten brother and flew him back to safety, Estarossa followed behind them giving cover. They made it to an abandoned mineshaft, the light that shot out of Meliodas is slowly healing.

"We need to report to the demon king of what happened to Meliodas" Zeldriss replied, Estarossa nodded in agreement.

IN THE DEMON WORLD

Zeldris and Estarossa arrived in the demon with Meliodas on Estarossa's shoulder. They placed Meliodas in a healing Poole then went to the Demon King to report what happened.

"And that's what happened father". Zeldris said in a saddened tone.

"So the archangel Uriel was too strong even for Meliodas in his strongest form?" The Demon King asked in an irritated tone. Zeldris shook his head as he explained that she caught him off guard when he was preparing his magic for an attack that would've killed everything and everyone that was in its way. The Demon king nodded at his explanation then he turned to Estarossa.

"Father, when we put Meliodas in the healing pool we discovered that he had some Residue from one of the Goddesses." said Estarossa in a firm tone saying that it will take longer for him to heal because of it. Then suddenly the demon world started shaking violently. "WHAT THE HELL IS GOING ON!?" Yelled the Demon King as he demanded to know what was going on. At the same time Galand, Melascula, Derieri, Monspeet, and Gowther came running in yelling the same thing. "THE DEMON WORLD IS BEING SEALED".

End Chapter