Intertwined Destiny: The Rebirth of Naruto and Rias

"Ah, Serafall-chan, it's good to see you here!" Sirzechs greeted her with a bright smile on his face.

"Hello Serafall-sama." Grayfia lowered her head.

The childish Maou quickly asked the two everything that came to her mind at that moment, from their health to their jobs, even asking them if her TV show was good or not. Grayfia still kept her stoic expression during the conversation and didn't answer much if Serafall didn't directly aim the questions at the silver haired queen.

"Sirzechs-chan, about Ajuka-chan's mission at Heaven." She stopped a little and looked at Sirzechs "Naru-chan, I wondered when he would come back!?"

Sirzechs and Grayfia looked at each other, the information about Naruto having already returned to the Underworld was being kept as a secret, no one outside of the Gremory family, except for Rias and her peerage knew about this.

Long ago, when Sirzechs decided to make Naruto a member of his peerage, he had seen the great power hiding deep inside the boy and wanted him to use those powers for a good reason. At first, he wanted his sister to be the boy's master, considered the two were really close with each other but had decided against it because of the so called 'Elder-council' that didn't want Naruto running around free or being a servant of someone too young like Rias. They had seen the boy's power and were very impressed when they saw what happened that night but were also afraid that this boy would become a threat when he grew up and became more powerful. It took him and the rest of the Maou, leaders of the Devils world to warn them not to touch the boy or he would be forced to dissolve the Elder Council.

If Naruto became a member Rias's peerage, who knew what the council would do to get their hands on him.

Not only that, he afraid with that much power from Naruto, only the Evil Pieces of the four Maou could accept him and wasn't surprised much when Naruto was worth five Mutation Pawns, which mean he could be even more valuable than a normal Evil Pieces set.

"Serafall-sama, please do not worry, I'm sure Naruto will come back." Grayfia nodded her head at the Maou, she had seen the look on Naruto's face when he read the letter her master had given him and felt a little weird feeling in her chest whenever she thought about him.

Some people thought she was Sirzechs's wife because of their love story in the Great War but the truth was that they had already broken up when the war was finally over. Even though their love story still spread like fire on hay, Sirzechs and Grayfia looked at each other as nothing more than friends now.

Ten years ago, Sirzechs had fallen in love with a normal female devil and they had a beautiful child named Millicas Gremory, he was ten years old now. Only the members of the Gremory Clan knew about this and Grafia had become a nanny for Millicas while his mother was taking care of her promotion to become a high-class devil so that Sirzechs could finally reveal his real wife to the world.

Grayfia had been on a lot of dates while trying to find her other half but the devils she dated only looked at her as the strongest Queen of the Underworld, not the woman she always want to be.

Until she saw Naruto who had finally returned from his mission in Heaven.

When Naruto first joined her master's peerage, she looked at him as an unfortunate child who got caught in the fight between Sirzechs's household and their enemy. The feeling began to change as he grew up, she looked at him like the little brother she had lost during the War, always wanted to take care of him and help him with anything he needed. At the time, Grayfia thought her duty as a maid was the thing that made her take care of him like she was his personal maid but the duties at Lucifer's castle always made her too busy to look after Naruto. And when he looked at the escort mission Sirzechs had personally assigned him, she wanted Naruto to decline it and stay at the castle with Rias, the two of them had grown pretty closed to each other at the time after all.

When Naruto returned home after two years, she couldn't believe the young man standing in front of her used to be the blonde haired boy running around the garden with Rias on his shoulder, shouting along with her in happiness like any child would. He had changed so much in only two years, the cute blonde haired boy was gone and was replaced by a handsome young man who happened to appear in every wet dream she had at the moment.

A blush appeared on Grayfia's face when she remembered her dream from last night but quickly shook it off and returned her expression to what she was used to. A stoic, stern maid who would punish her master whenever he forgot his duty as the leader of the underworld. For some reason, Grayfia always felt really jealous of Rias, she always got Naruto's attention first. Even when he returned home, the first thing he asked about was his childhood friend.

When Sirzechs asked his peerage who was going to deliver his message and the recorder of Rias's first Rating Game against Riser, Grayfia had raised her hand a little too fast for her liking but nonetheless was very eager to meet Naruto alone. She was really worried though, he came to Sirzechs's office one day and went out while holding a bag full of missions with a smile, no one should be able to finish all of those missions in only one week yet Naruto had done them and put into his bank account a huge amount of money.