Chapter 15: Grayfia Lucifuge

"I see that that man had become your mate" Grayfia asked as a glowing sword radiating icy aura appeared in her hand "After I killed you, he'll be next" she said emotionlessly with her eyes icy cold.

"Like hell I'll let you touch him" Mira gritted her teeth as she shot forward, her anger taken the better of Mira who calmly swung the sword around before slashing Mira's stomach when she got close with lightning speed.

Instantly a large chunk of ice formed around the Succubus, forbiddening her from moving an inch of her body.

Mira gritted her teeth in frustration, while neither of them could deal real damage to each other, Grayfia proved to be a harder opponent than anyone she had faced against in her life with that ice power over slaying demon of her.

And thw fact that this woman could get on her nerve only made it worse for Mira to focus on fighting properly.

"You bitch!" Mira growled before breaking free from the ice which was formed around her.

She need to get serious or else she would make Naruto-sama look bad.

Magic flared out from her body as Mira's demonic appearance change to a more angelic form.

Mira's ears were covered by sky long blue scales, extending backwards, and gain pointed edges, bearing resemblance to those of fictional elfs. She also gained similar scale-like armor in her forearms and hands as well as in their legs. Each forearm also receives a fin-like protrusion on its outer side. She also grew a large, sky blue, stocky tail seemingly made of metal plates or scales, getting smaller and smaller near its end.

The clothes also changed, with Satan Soul's clothes had been replaced by a light blue and dark blue, one-piece suit revealing Mira's arms and legs, which is open on the front and the back, exposing most of the belly, wide cleavage and upper back. This Satan Soul form also dons two angel-like wings that were pointing upwards.

"Strange" Grayfia widen her eyes slightly at the new form of Mira but didn't seem to surprise at all"a demon taking the form of an Angel, you sure are desecrating the people of heaven Mirajane"

"Talk all you want" Mira said calmly "because you won't live to see the tomorrow" she opened her eyes and looked directly at Grayfia, demonic power flaring around her.

Line Break

"Lilith, now is not the time for this" Naruto gritted his teeth when he felt the woman-turned-clothes began to grind her hip against hip, licking his neck where the mask was at.

As soon as Erza turned back to normal she raised her gantlet fist and punched the crook of Naruto's neck before he could react.

"Garh, Erza what the hel..." He gasped for air but then realize Lilith had stopped licking his neck and her body went limp.

"I knock that bitch out" Erza said smirking as she held out her hand to help Naruto stand up "I request that as soon as this mission is over, you took her off your body and threw the clothes into the washing machine"

"Anyway, we better go help the others" Naruto said and quickly ran inside the mansion, trying his best to ignore the death body lying on the ground and floor.

As soon as he got to the back of the mansion, he saw the priestess kneeing on the ground, looking at the screen in front of her with emotionless eyes.

Kurenai, Anko and Hana and her Ningen was battling against the Group of four and was doing a pretty good jobs pushing them back, showing their great skills of being Jounins of Konoha.

This made Naruto sighed in relief, when he didn't hear anything from the girls, he thought something was happened to them.

"Hey, are you okay?" Quickly running to the priestess Naruto kneed down in front of her and asked kindly.

The girl was quite beautiful and if Naruto didn't know any better he would say she was Hinata's twin with the only different between them was the color of their hair.

"You..." She whisperef while pointing at him "Is going to destroy the world."

"Eh?" Naruto asked in surprise "What the hell are you saying?" He asked with a dumberfounded expression. This also caught Erza's attention as she stood behind Naruto.

"I said" she raised her voice "you're going to be the destroyer of Elemental Nations"

Naruto widen his eyes in shock. He didn't understand what she was saying, but it clearly had connection with the fact that Kurahime wanted him to become the King Of Makai after opening the Makai's gate and unlease her armies into this world to slaughter the human.

However before he could ask her again, a pillar of light shot out from the wall above them as Mira, in her Haplas form flying inside with her hand grabbing Grayfia's head. Bruises and cut covered their body, Mira more than Grayfia whose maid outfit was tattered.

"Die, you bitch!" She cried out and smashed Grayfia against the wall, but the silver haired woman's legs shot up and wrapped around Mira's hip.

Grabbing the succubus turned angel's arms tightly with both ot her hands, Grayfia gathered her magic into her palm, freezing Mira's wrist and broke her face free from the white haired womab's grab.

Grayfia's body suddenly bended over as she forced herself straight to rhe ground and smashed Mira's head hard against the rock surface before standing up, summoning a huge pillar made out ice and slammed it down Mira's body multi times, making Mira cried out in pain

"Stop hurting her!" Before Mira could stop him, Naruto already charging forward as he raised his fist to punch the demon slayer.

However, like Nibi said she wasn't someone Naruto could take at this level.

"You seem really care about that demon" Grayfia grabbed his fist and glared at him, she was breathing hard but the level of killing intent and the pressure of her power are still enough to make Naruto hard to breath "then good, you can die along side with her" she punched his face, harder than anyone could ever punch him in his life.

"Naruto-sama" Erza cried out and was about to catch him but a thick wall of ice suddenly appeared around her

"You're going to be my third demon of the day Erza Scarlet" Grayfia said as she walked to Naruto "But first I need to finish with this two first." She summoned a blade in her hand and walked toward Naruto.

"Sto-p" the silver haired woman looked down and saw Mira on the ground in her human form, grabbing her ankle to stop Grayfia "please don't hurt him" ice formed around Mira's hand as she was kicked away by the demon slayer.

"Pathetic, all your demons should just die" She said coldly and walked to Naruto again, Erza summoned her sword and slashed the wall violently to reach for he master before it was too late.

"What're you doing?" Grayfia asked as Naruto wiped the blood away from his mouth and slowly formed multi handseals with his hands "you're weak, there's no way you can defeat me"

"Yes," Naruto muttered through his gritted teeth as tears ran down his cheeks "I'm too weak, so weak that I can'r even protect my love" he looked at Mira who had passed ou after recieving a hard kick by Grayfia in her human form "even if I borrow her power, it won't change the fact that I'm still too weak"

"Then please...Kurahime, just this time...this will be the last time I ask for your help" Naruto looked up with a furious eyes before slamming his palm to the ground "Kuchiyose no Jutsu!"

In a puff of smoke, the Queen of Makai appeared in front of Naruto in all her glory much to the shock of the silver haired maid.

However, Kurahime's face was void of any emotions as she looked at Grayfia with a calm, yet dangerous expression.

"The Queen of Makai" Grayfia muttered as sweat rolled down from her temple "to think that you're sealed inside this man"

Instead of replying to Grayfia, Kyuubi just looked at Naruto with a blank expression.

"You made a promise to me Naruto" She said "better keep it"

"Of course" he stood up shakily and made his way to Mira "because it's a part of our contract, I grow stronger with your help" he said.

How could he call himself Mira's mate for life, when a simple task like protect her, he couldn't do.

Pulling out the diamond key of the princess of Celestial Spirits, Naruto called out for her as in a pink magic circle, Lucy appeared while bowing slightly.

"How can I help you Naruto-sama?" She asked but widen her eyes when she saw the expression on his face.

"Lucy, do you know any healing magic?"

"Yes I do Naruto-sama" she nodded.

"Good, then please help me heal Mira-chan" Lucy widen her eyes, this time in shock as she twisted around and saw Mira lying emotionless on the ground.

"Mira-san" she quickly rushed to Mira's side and kneed down as a light green aura appeared around her hands as she put it near Mira's chest.

Naruto took Mira's hands into his and breathed out a sigh of relief when her face regained some of its color.

"Next time Mira-chan" he whispered as his bangs shadowed his eyes "even if I have to become a demon myself, I'll be the one who protect you"

He'll protect them.

Back at the fight Kyuubi was cracking her knuckles while her youki flaring dangerously, forming a giant nine-tails Kyuubi above her roaring at Grayfia with hatred in its eyes.

"Kyuubi-sama," Erza gritted her teeth as she kicked the wall the final time, completely shattering it under her strength as she walked toward Grayfia with so much blood lust around her, holding a massive spike broadsword "Please, let's me kill this bitch"

"There is no need Erza-chan" Kurahime held out her hand to stop the red head "I can handle her from here"

"But..."

"I said don't worry, go to Naruto's side, he needs you more than I'm" Erza looked at her mistress for a moment before lowering her head but not after throwing the demon slayer her best glare.

"I understand, Kyuubi-sama"

Erza walked away, leaving Kyuubi standing alone in front of Grayfia while blood red aura flaring around her.

Naruto had let her have enough youkai to destroy a whole village, killing Grayfia would be a very simple task for her even with just a tip of her current power.

However, she had the better use for her power.

The woman in question summoned the glowing ice blades with both of her hands and launched at Kyuubi with blinding speed. She had no other choice than fight against the Queen of Makai, running away wasn't an option for a proud warrior like her.

However before the sealing blades could touch Kurahime, a giant orange tail shot up from behind the Queen od Makai and hit Grayfia hard in her stomach, making the silver haired maid wearing woman coughed out blood before being seng away into the wall.

"I should know that you're too strong for Mira to handle" the Kyuubi said as she looked at the sealing blades in her hands, which she had taken from Grayfia before sending her away with her tail.

"While I would love to kill you for hurting my servant, and my Naruto-kun" Kurahime walked toward thw falling woman while tighten the grip around the blades, completely shattered them without so much of an effort "but your strength is undeniable, killing you would be such a waste for Naruto-kun's benefit"

"Damn you, don't look down on me" Grayfia tried to attack with her hands glowing with silver aura, but Kurahime caught it faster than her eyes could follow and slapped her across the face, hard.

"Instead of killing you, how about I turn you into what you hate the most?" Grayfia's face lost its color when she looked at Kurahime's mischievous smile "A devil, ne?"

"You bitch!" Grayfia tried to fight back, but a tail wrapped around her neck and lifted the silver haired woman off the ground, making Grayfia gasped for breath while trying to claw Kyuubi's tail to free herself.

"My mother, Akeno's father, Erza's father and Moka's father was my father's four guardians" she smirked as a red magic circle appeared around her hand as Grayfia's body began to glow "When I was born, Mira-chan, Erza-chan, Akeno-chan and Moka became my guardians. Be grateful that I chose you to become the first one of Naruto's guardians"

With that she put her hand in front of Grayfia body, engulfing the silver haired demon slayer's body with an ethernal crimson light as Grayfia cried out for Kyuubi to stop.

Far from behind them, Shion was being protected by the three Kunoichi, all of them were watching the screen with eyes wide in shock.

However, Shion's eyes then glowed as another flash of future appeared in her vision, everything was mostly the same from last time, with the army of youkai slaughtering everything crossed their path, with the other fours sitting on a moutain watching the massacrage.

However, there was something different this time...

Grayfia Lucifuge was standing behind the throne chair beside the giant armor cladded Vixen's foreleg, with her hand put in front of her body gratefully while she looked at the war in front of her with the usual stern expression.

Grayfia Lucifuge, the demon slayer her servant hired to protect her against the demons, will stand along side with demons and do nothing to help the human.

The vision disappeared as soon as it appeared.

Grayfia's body fell lifelessly to the ground as the silver haired woman unable to move an inch of her body as she stared as Kurahime with eyes as wide as dinner plates, tears flowing from her eyes.

A pair of bat like wings tore away the cloth of her maid outfit's back and spread out widely behind her.

"Welcome to the family, Grayfia"

The Queen of Makai patted the top of Grayfia's head softly as she walked toward the now waking up Mira and the people that gathered around her.

Line Break

With Mirajane's personality, the only things that she would hate in her life would be the loveless girls, men that looked at her like they're looking at her mother (while for her nature Mira enjoy that) and life without her mate fuck her senseless.

However, Naruto never felt so much hatred from the white hair succubus than right now, who was glaring at the silver hair woman sitting with her back leaning against the wall outside of the room, her face lowered down in shame at what she had turned into.

"There done," Lucy smiled as the last of Mirajane's cut disappeared from her flawless skin "you're fine now Mira-san" she smiled.

"Huh?, ah yes thanks Lucy!" Mira nodded with a force smile.

Right now, they were sitting inside of the priestest room with the young woman, Shion was sitting at the head of the house with her eyes devoided of any emotions.

The three Kunoichi were sitting at the front line, while Naruto and the others, after he summoned Nibi from his seal decided to chose the back of the room, a more quite place and recieved the least attention for them.

"Chill down daughter" Lilith said as she wrapped her arms around Mira's neck from behind. After everything was over Naruto decided to change back to his normal attire, as he was in no mood for Lilith's game "she's master's guardian now, only him or Kaguya's daughter have the right to decide her fate now"

"But, she killed Lisanna!" Mira cried as she pointed her finger at Grayfia "don't you care about that, she killed Lisanna without hestiation!"

For Naruto's surprise, Lilith's face lost it slutty look as the woman looked away, landing to the ground and sat there without saying anything.

"Kyuubi-sama, what are you thinking?" The white haired succubus turned to her Queen "turning her into devil will only boost her power, there's no guaranteer that she'll follow Naruto-sama's orders and maybe she will use that power of her to kill as many of our races as she can"

"Sorry Mira-chan" Kurahime said apologically as she put both of her hand together in front of her and smiled softly "but killing someone as strong as her will be a waste for Naruto-kun's benefits" seeing no hope in convincing her mistress, Mira turned to Kurahime's sister.

"Don't say anything Mira," Nibi said quickly before Mirajane could speak up "it's my sister's desicion, not me" she said "plus, one less soul not be killed is one less voice not whispering into my ears"

"Erza, you..." Mira looked at her best friend/rival, but the vixen only looked away.

"It's not my place to decide Mira" she said "Trust me I want to kill her as much as you, but it's Kyuubi-sama's choice"

With that, she turned to the last person in the room to find some support, Naruto

"Naruto-sama, are you really leave it like that?"

The blond turned his head to look at Grayfia and then back at Mira.

"I don't think death is the worse punishment for her than this Mira-chan" he never enjoyed killing in the first place, but even if he hated Grayfia just as much as anyone for hurting Mira, it's not his place to decide what to do with her, since Kyuubi had given up some of her power to turn the woman into devil.

"Fine!" Mira's eyes tears up as she furiously wiped them away "If you're want to keep her, then keep her"

"But it didn't like I'll like it!" She stood up and walked outside, not even care to glance at Grayfia.

"Let's her be for now" Kurahime sighed "Mira already have a long day"

"I thank you for your service Shinobi and Kunoichi of Konoha" Taruho, Shion's personal bodyguard said gratefully, mostly to the three Kunoichi while at the other side of the room, only Erza seemed to care about what he was saying.

Naruto, instead of listening to the pointless speech, stood up and walked outside.

Sitting down next to Grayfia Naruto stayed silent and waited patiently for Grayfia to break the intense atmosphere between them.

At last, after a minute of staying quite, Grayfia decided to speak up

"Come to laught at me, aren't you?" She asked quitely, not meeting his eyes

"Of course not" he said while scratching the back of his head "Just wanted to get to know you, that's all"

"Well, you're already know me" she said "I'm a demon slayer, your enemy and the one who killed your lover's sister"

"Did you...really kill Mira-chan's sister?" He asked slowly, unsure of his words.

"Believe it or not, it's me or her" Grayfia muttered "And I don't intend to die soon, if so, I'm already find a way to kill myself ten minutes ago"

"You really hate demons and Youkai, aren't you?"

"Your kinds killed my family, slaughtered my clan and ate my brother while he was still breathing" she said, her face was still managed to keep it from showing any kind of emotion "of course I'll hate demons like you"

Demon...the world the villagers called him when he was young.

"Well, believe it or not..." Naruto said as he stood up and walked back inside "but I'm human, like how you used to be"

The silver haired woman's eyes opened wide in shock as she turned to look at Naruto, but he had disappeared into the room again.

Line Break

"So let's me get this straight" Aphrodite said while looking at Naruto, who was having Lilith deepthroating him "You just got your first guardian, who happened to be a demon slayer, which is as strong as, if not even more powerful than Kurahime's guardians themselves and also the one who killed Mira's sister" she finished as she turned to Mira, sitting at a corner of the room with a porno magazine in her hands.

"Something like that" Naruto nodded as he pulled himself out of Lilith's mouth and turned her around, raised her ass in the air and thrust his cock in her pussy, reaching his hands out to grabbed her arms Naruto pulled her upper body up the ground and started riding her, much to Lilith's excitement.

"But I'm not sure if she will willingly follow Naruto-sama" Nibi said as she leaned her head against the door frame.

"Like it or not," Kyuubi muttered "there's not turning back for her now"

Mira huffed and turned away, continuing to read the magazine and completely ignore the roughly sex scene that happened right beside her.

Which was truly an odd sight by now.

"Naru..." The door of the room was opened, making Nibi who was leaning against it lost her balance and fell backward.

Naruto turned his head to the door and saw Grayfia standing with a deadpaned look on her face.

"I should have no better" she sighed while having a defeat look on his face.

"Hey hey, it's not...uh, I mean it's excatly what..." Naruto didn't have the chance to finish that because Lilith suddenly tighten her pussy, gripping his cock hard enough to make him want to loose his mind to the sex there, but bit the inside of his mouth to stop himself.

"Save it" Grayfia said sternly "Shion-sama's preparation is done, you should...finish soon as well"

"Tch, like you're the one who decide thing" Mira muttered while glaring at Grayfia.

"Talk all you want Strauss" Grayfia said emotionlessly before turning her eyes to Naruto "listen here Naruto..."

"You're now his servant, called him properly"

"Mira" Naruto warned with a slight edge in his tone making the succubus Queen huffed and turned away. Clearly Mira was bitching like that because of her hatred over Grayfia

"Please continue Grayfia" Naruto nodded to her.

"I...just want to say that maybe I'll give this new life a chance" Grayfia said while looking away "It's not like I have anywhere to go or what to do other than bath in Demons' blood" Mira snicken mockingly "but anyway, I willing to go be your guardian with two conditions"

"Go on"

"First" she pointed one finger up "I won't kill human, no matter the circumstances, I won't...and never accept an order of killing human"

"Fair enough" Naruto grinned, just what he wanted. Grayfia appeared to be just like Erza.

"Number two" she looked at Mira before turning away "Forget it, only that condition is enough"

"Hey, what's that look suppose to mean?" Mira growled as she stood up from her seat, a crack apppeared underneah her eyes as Mira's hands glowed with dark magic "Bitch"

"Care to repeat that again?" Grayfia asked as she turned around, the temparature of the room dropped rapidly.

Naruto sighed as he looked at the two of them, even with her rival Erza, Mira nevet acted like that before. It's going to be a hard time trying to ease the tension between them.

After this mission, he also has a lot of thing to do. The memories of Mira being crushed under her opponent's strength and her while unconscious will forever haunt him.

He had to become stronger, or else those memories will repeat again.