Hello guys I am here with another story

This story contains: love, betrayal, hate and bashing. The main bashing will be Sirzechs, but there might be other bashing (who knows). But this story strictly follows Grayfia x Naruto. As the story continues, there might be harem of Naruto as per reader suggestions, but the main pairing will be Grayfia and Naruto.

First Naruto is really op, but his more than half power will be sealed. So he will be bit powerful than Sirzechs, almost the same level as Indra.

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Story start:

Everyone knows that Sirzechs Lucifer, the leader of underworld, was one of the strongest being in the world; he was the main reason they were able to defeat the four Satan with the help of Ajuka Beelzebub, Serafall Levitation, Falbium Asmodeus and finally Grayfia Lucifuge. Everyone in the younger generation knew this, so this should be truth right? Wrong. While it is not a total lie, it was not a total truth. They were part of that plan, but there was also one man whose power was parallel or even superior with Lord Shiva, the God of Destruction; one of the Trimurti.

No one knew the truth because he never used his full power in battle, he held back a great deal in order to enjoy the fight. Some devils also said that he is so strong that he might be the one who could obliterate 666, but he considered one of the most loyal men to the old Lucifer. He was battle hungry, ruthless and cold. He was believed to have loved battle over any other thing but this was not true. He had fallen in love with a woman. A woman that he thought was the most beautiful person in world.

The woman was none other than Grayfia Lucifuge, the Ice Queen. When he saw her for the first time, he was speechless. He slowly fell for her and in no way noticed it. As for Grayfia, she also fell for him after some time by working with him. They both were into each other but were oblivious to each other's feelings. The one who noticed and got them closer was Euclid; Grayfia's little brother. He really didn't like the fact that she loved more someone other than him, but he was happy that she found a man she deserved and a man he respected for everything.

It was none other than Naruto Uzumaki. He was the strongest devil with the power over darkness, hellblaze and full counter. There was not a single entity who could match him. In strength or in power. Grayfia did not just fall for him because of his power, but because of his devotion. He was the most dedicated person she has ever met and they loved each other more than anything did. However, fate had different plans for them.

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The civil war

Everyone knew that the rebellion would never be able to defeat the old Satan. However, because of Naruto, he was their shield. No matter what the rebellion did, they were unable to defeat him; either consumed by darkness, burnt by hellfire or destroyed by their own attacks. The rebel army was so tense that they did not know how they could defeat such monster. He was too powerful for them and everyone had almost lost all hope, but Sirzechs had another plan. He knew of what was Naruto's weakness, his love Grayfia. Sirzechs also wanted Grayfia but not because of love, but because of lust.

His plan was that they would attack in few days towards western front where Naruto and Grayfia were currently located and he had a pan to handle Grayfia, and the remaining three would attack Naruto to buy some time. If their plan worked, then victory was theirs.

In the next few days, they attacked the western front. However, it was much harder than they had previously thought. As they had planned, Sirzechs approached Grayfia. The battle was intense but Sirzechs final overpowered Grayfia. She was devastated. She would never see her beloved Naruto again. All she had wanted was to live rest of her life with him, but that could never happen now. She closed her eyes to accept the death, but it never came. When she open her eyes, she saw Sirzechs extending his hand. Grayfia was confused. Why was a potential enemy helping her?

When Sirzechs saw this, he explained about peace. If they win, everyone would be happy. No one would have to die, future generation would not be in constant terror and she can live with her beloved people.

Grayfia's first thought was about Naruto. How they could live together, but that also meant that she would have to betray Lucifer, their leader. However, to her, no one was more important than Naruto. She accepted Sirzechs' offer, but Sirzechs told her that she have to convince Naruto to join their side. She knew it would be extremely hard, because Naruto was very loyal to Lucifer. After all, the first Lucifer saved his life. Therefore he thought that his duty to protect the Lucifer family. Grayfia nodded her head and both she and Sirzechs started to run towards Naruto's direction.

When both of them reached the destination, what they saw completely horrified them. There were bodies everywhere. Both sides of devils had suffered fatal blows but Grayfia was searching for Naruto.

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With Naruto

Naruto was battling three people with a bit of difficulty. It was true, he was the strongest devil, but the three were quite good and their teamwork excellent. He had never enjoyed a battle quite like this one, only using 50 percent of his total strength. He was sweating from a few scratches, but they were healed as time went on, the darkness burning the wounds away. In his left hand, he held a jian, the legendary Kusanagi-no-Tsurugi (1). At the same time, the other three devils; Ajuka, Serafall and Falbium, were totally messed up. Naruto was too strong for them, but everything changed when they heard someone calling for Naruto. When they saw Grayfia calling him and Sirzechs behind her, they knew that their half of the plan had succeeded. Now it was up to Grayfia to convince Naruto.

Naruto looked towards a voice and saw Grayfia running towards him with Sirzechs behind her. Without a second thought, he was between Grayfia and Sirzechs, punching him in the face intensely. He blew back thousands of feet, snapping trees in half as he smashed through them. Naruto was going to attack Sirzechs but Grayfia held him back. She told Naruto to stop this senseless fight. She did not want him to fight the meaningless battles. She wanted to live with him happily with him and their potential children.

At that moment Naruto was extremely angry, no he was furious. It was unthinkable that his love wanted him to betray his master and his family. The same family he swore to protect, but at the same time, he also wanted to be happy with Grayfia.

He was too confused what to do. The three devils approached him and revealed that if he helped them, he will not only have a better future with Grayfia, but he will also save his master's family and prevent any future deaths.

Naruto looked towards three devils and final looked towards Grayfia. He smiled at her and sheathed the Kusanagi onto his right hip. He turned towards Grayfia and hugged her. Naruto told her that he would no longer fight this meaningless war. He would confront the old Satan faction himself.

When they heard this proclamation, all four of them could not believe it. They had thought that since he was extremely loyal to Lucifer, he would confront them. Grayfia was worried. If the old Satan faction tried to attack him, he would not defend himself. Grayfia tried to protest, but Naruto had made decision and he was not going to back down from it. So Grayfia thought the next best thing was to go with him. Naruto tried to protest, but Grayfia did not even let him speak. All she did was kiss him on the lips, silencing him. She told him that she would join him no matter what.

While Naruto and Grayfia were arguing, all three devils were looking at them with mirth. It was quite sight to see what could be the most powerful devil, being completely dominated by a woman in an argument. That aside, they still had their doubts that Naruto could pull it off. When Naruto noticed this, he told them that he did not care if they believed in them or not. He was going to do it for Grayfia.

He told them that if he did not want to help them to stop the war, then they would have been long since dead. At that comment, they tensed. It was true; if he wanted, he would have killed them without a sweat.

Serafall was the first to speak. She told Naruto that they were sorry, but seeing as they were just fighting; it was hard to trust Naruto. Hearing this, Naruto said nothing but walked towards her. She tensed up as both of her friends moved to protect her. Naruto ignored both of them and moved to face Serafall. As his hand touched the top of her head, she flinched. Naruto chuckled as he ruffled her long black hair. He told her that it was naturally hard to trust someone in such conditions. After a few seconds, he turned toward Grayfia and teleported both Grayfia and himself away from battlefield leaving the three devils alone.

It was then that Falbium noticed that something or someone was missing. He recalled the previous minutes and they all remembered about Naruto punching Sirzechs and how he was sent flying towards forest. Suddenly they felt a massive blast of killer intent emanating from Sirzechs, who now was out of the forest. Most of his clothes were stained with blood, his jaw was almost dislocated and he was seething in anger. When he saw his friends were standing around, he asked them where was Naruto and Grayfia. They told him that both of them were going to confront the old Satan faction, but Sirzechs told them they should also go in case they needed to help them. However, this was just a farce, in reality he wanted to have all the fame so he could have Grayfia drooling over him.

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Old Satan faction palace

Both Naruto and Grayfia appeared outside of the palace in a yellow flash. The palace guards greeted them but they were ignored by the two devils. The two devils walked towards the war room that contained all of the current Satan faction. Some of the guards were surprised to see him because they thought he destroyed the members of the rebellion.

As Naruto entered into the room, he was greeted with smiles. They congratulated him for his obliteration of the rebellion, but he stopped them cold by saying he did not win the fight. He told them that he did not want to fight the meaningless war anymore. He wanted to live a quiet life with Grayfia in peace. When the Satan's heard about peace, they started to laugh. How can the most brutal man in the underworld live in peace, a man who loves fighting more than anything else live in peace?

His reply shocked them. He was not the same Naruto that they knew. When they first meet him, he was empty inside. Now that he had meet Grayfia, that emptiness inside him has been filled. Grayfia blushed at that comment and grabbed Naruto's left hand. She knew that the Satan's were angry, so they might attack him. She swore she would be the one who would protect him. Just as she thought that, Leviathan and all of the guards jumped to attack them. Naruto, seeing this, did not even move. Grayfia moved in front of him to protect him, in order to take the blow for him.

When Leviathan was mere feet away from Grayfia, she yelled at her saying that she was the reason that Naruto was betraying them. She would kill Grayfia and have Naruto herself. Leviathan thrust her hand to kill Grayfia, but Leviathan felt a bone shattering kick to her left cheek and was sent towards the right stone brick wall, unconscious upon impact. Every guard that tried to attack was dead, limbs slowly falling around them.

All of the remaining Satan and their lackeys in the room were shocked what just happen. One second she was going kill Grayfia, and then in the next second she was embedded in the wall unconscious with every guard in bloody chunks. When they saw who kicked her, their bodies froze in fear. They saw Naruto with half of his body covered in darkness. His eyes were black, a spiral mark appeared on the left side of his forehead. The look he was giving was so cold that no one dared to move from the spot. When he spoke, his voice was deep. He told them that they could kill him if they wanted, but if anyone dared to touch her, he would erase them from existence. Stunned, all they could do was just nod their heads and sit there.

Soon they heard an explosion and they saw guards come from the doors for help as they said there was enemy attack. No one dared to move from his or her spot but Naruto spoke to Lucifer, warning them to leave. This was the last time he will give him and his companions a chance to live. If anyone dared to comeback for revenge, he would slaughter them. Upon hearing that, everyone teleported away leaving solders behind. As the old Satan faction left, the door behind Naruto and Grayfia opened and they saw the four devils coming to fight. When they entered, they saw the mutilated bodies of many devils and Naruto and Grayfia hugging, with almost half of Naruto's body covered in darkness.

Darkness drained from Naruto's body when Grayfia kissed him in front of the four devils. When Sirzechs saw this, he seethed in anger, but managed to control himself, which was noticed by Ajuka and Naruto.

Naruto and Grayfia separated themselves from each other, but Naruto kept his hand around her in protective manner causing her to blush. When they came out of palace, everyone froze when they saw Naruto. However, when Ajuka came to the front and told them that they had won the war and Naruto was on their side, they starting to cheer Naruto's name.

However, Naruto motioned his hand to stop them and told them that he did not do anything special. He had just helped these four devils and they were the real heroes. So the crowd also stating to cheer the four devils, they were strong an ultimate class devils for nothing.

After few years into their relationship, Naruto and Grayfia got married. Everyone in the underworld was happy for them, that is, except Sirzechs who was still obsessed with Grayfia.

Again, Naruto noticed this, but not only him but others as well. Amongst those that were Lord & Lady Gremory, his rival Ajuka and Grayfia herself. It really bugged her how Sirzechs was constantly leering at her. She warned him, but it was not getting any better. After awhile, Naruto took Sirzechs aside and told him to leave Grayfia and his family alone. Naruto did this in hopes that Sirzechs would leave peacefully, but it was only until a few weeks and one bodily harm threat later did Sirzechs finally relent and started to ignore them

After a few days, Naruto was offered the place of Lucifer but he rejected it saying he did not want to become Lucifer because of all the paperwork that came with it. Everyone sweat-dropped at that comment, but no one pushed the matter further. Instead, Sirzechs took the position of Lucifer, with Ajuka becoming Beelzebub, Serafall becoming Leviathan and Falbium becoming Asmodeus.

Then Ajuka created the evil pieces and distributed them to everyone. At first Naruto disagreed, but after some time Grayfia and Serafall convinced him. For his Queen, Naruto naturally chose Grayfia; his knight was his old companion Sparda, he took both; His old teacher Eryx became his rook, he took both pieces as well. Then there was also his Bishop, one of the deadliest females outside of Grayfia, Brandish. Finally, Mard Geer became his pawn, utilizing all the pawn pieces. Naruto's peerage was small compared to the others, but it was one of the strongest and all of them were extremely loyal to him.

Days passed by with everything at peace. One day, Grayfia was so happy that she just flew to where Naruto was doing his work. She hugged him and that he was going to be a father. Silence reigned for few seconds; Naruto was shocked. Then he exploded into a happiness so strong that entire underworld would have been heard him yell. He took her directly his home and told her from now on she would not work because she needed rest. Naruto then told his peerage/subordinates that they would have to handle almost everything from now on, because he will be with his wife twenty-four-seven. Unless it was extremely important, no one should disturb him or Grayfia.

Naruto bought everything for her, anything she would ask for except for letting her work. When the news reached to the underworld, everyone started to congratulate the couple. Everything was perfect and after nine months, Grayfia gave a birth to a silver-haired, blue-eyed baby girl. She was adorable but Naruto was afraid that he might accidently hurt her. Grayfia told him that he would never hurt them, even without intention. So he held his daughter in his hand, her small body in his big and powerful arm. When his daughter saw Naruto, she started to giggle and coo. It made Naruto extremely happy, then he sat down beside his wife and held her in one hand and his daughter in the other. He was the happiest man in the world at that moment.

In just a few days, his home was filled with joy. A few months after his wife's delivery, many other families gave birth. Everything was going peacefully, but then the Old Satan Factions began to attack the nearby borders. Naruto and Sirzechs decided to go deal with them. Before Naruto left, he went towards his wife and daughter, who were playing with his peerage. He knelt down and kissed his daughter on her forehead, and then he walked towards his wife, kissing her on the lips and told her that he would be back soon. Then he ordered his peerage that until he came back, it was their duty to protect his family. He looked back towards them, even as he flew away, silently telling himself that he would see tem again.

The battle was totally one sided as Naruto annihilated everyone who was in front of him. However, he spared the Old Faction saying he could not kill them because of his word to the First Lucifer who saved his life. The Old Faction told him the truth of why Lucifer saved him, but his reply shocked them. He told them he already knew everything but it was because he saved his life that he was doing this favor. As he was speaking, a red beam pierced through him, entering his body from the back and exiting through his chest, nicking his heart. He was shocked that someone could have hurt him but when he looked behind him, he saw Sirzechs grinning and then laughing.

Sirzechs told him about his plan with the Old Satan Factions to take Naruto out, then he would have Grayfia as his slave and his daughter will be raised on the street. Naruto felt numb, the attack had cut through on the superior vena cava and he used some holy water in the attack making Naruto unable to move his body properly. When Naruto heard what Sirzechs was going to do to his family he snapped and with a monstrous burst of power, the very underworld shook. Naruto tried to use his dark cannon attack to kill Sirzechs, but the attack ripped through the entirety of the left side of Sirzechs' body, atomizing his left hand and leg.

Sirzechs was bleeding badly. Naruto slumped down on a hill side and when Sirzechs and the Old Factions saw this, they took this opening to attack. Everyone hit Naruto with their most powerful attack. Naruto was badly hurt, he was not able to move as the ground below him was shattered and he started to fall. As they watched, they heard his last word very clearly 'I will come back but this time I will show no mercy towards anyone.' Then his body hit the lava in the volcano below and burst into flames. Suddenly the lava bubbled and Naruto's body fell through.

Suddenly, Sirzechs attacked the entirety of the Old Satan faction and before they could react, they saw Ajuka and Serafall come there with magic circles. So they did the next best thing, they fled. When Sirzechs told his story, he said that they attacked Naruto from behind and killed him with the power of holy water, pierced his heart and threw him into the volcano. Sirzechs elaborated the story by saying that he tried to save Naruto, but lost his left hand and leg in doing so. Both Ajuka and Serafall were distressed. How were they going to explain this to Grayfia?

When they told everyone what Sirzechs told them, they were devastated to hear that their strongest devil was killed. However, none were more distraught than Grayfia and Naruto's peerage. Grayfia was devastated. She could not believe that it was true, but Naruto never returned. She was so overwhelmed that she locked herself in Naruto's room. Naruto's peerage tried to console her, but it was not working until they reminded her about her daughter. Grayfia rushed out of the room towards her and held her in her hands, her tears landing softly on her daughters head. Grayfia was her only hope of living, so she would live for her. One hundred years passed and all but the older generation forgot about Naruto Uzumaki.

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And cut

Man writing story is really pain in ass.

Synbad's note: you think writing is a pain. Try editing...

Anyway, this is my new story where Naruto will be really badass.

As for his power it's from Nanatsu No Taizai same as Meliodas but little bit different his look will be the same as Estarossa but with little bit serious personality the main story will start in next chapter so enjoy the story

(1) Contrary to popular belief, the Kusanagi-no-Tsurugi is not a katana, as the legend of the Kusanagi-no-Tsurugi predates katana's by hundreds of years.

Have a nice day...