Giving an update, but things are progressing fairly well with the next chapter, hoping to finish it before Naruto's birthday, maybe earlier. That said, here's an alternate version of the opening for Forever Changed IV, along with an additional scene for that chapter. I'd say more but I am pretty darn tired, mainly due to work and figuring out life and whatnot. Once more, I am still invested in this and other stuff so I am not going anywhere.


Forever Changed IV Alternate Extra Scene - Facing the Crimson Satan

Agares Mansion

Backyard

"Again!"

A bruised Naruto gets back up to fight Alivian for the umpteenth time. The new devil of Seekvaira's Peerage had been fighting the male Queen for four straight hours for martial arts training. The upside of this was that Naruto was quickly learning and every fight was getting longer and longer by the second. The downside: It was one-sided, and Alivian was the only one unscathed. Infernus was pretty pissed. The demon wanted to wipe the floor with the dragon, but Naruto insisted that the demon bears it for his sake. After knocking Naruto down once again, Alivian stops.

"We should stop for now."

"I can still fight. Let's go again." Alivian smiles at Naruto's insistence that they continue the latter's martial arts training.

"I know you want to be strong for our King, but you need to rest your body-"

"No worries. I heal REALLY fast." In seconds, Naruto's bruises heal in front of Alivian, who is not surprised by both the blond's stubbornness and his incredible healing factor.

"That I am plainly aware of. Naruto, you're progressing at a pretty fast level Naruto. I don't want you to overdo it. You must know when to slow down before starting again. And besides, you have magic training later." Understanding, Naruto listens to the Queen and calls it quits for now. Getting up, Naruto walks back into Seekvaira's mansion.

Hallway

25 minutes later

Seekvaira's walking down the hallway looking at her files when she bumps into a shirtless Naruto.

"Oh! Naruto, I didn't see you..." Seekvaira can't help but look at the teen's shirtless figure.

"Alivian ruined my shirt during training. And I just came out of the shower a few minutes ago...And I don't have an extra shirt." Naruto replied as he scratched the back of his head.

"I can see that...I was about to look for you. I want you to meet someone."

"Alright, though I need to go get a shirt-"

"No don't!" Naruto is surprised by this. Seekvaira, realizing what she did, turns red. "I mean, I'm sure that our guest wouldn't mind if you see him without one. He is a guy."

"If you say so..." Naruto follows Seekvaira's to her studies. As they're walking, Seekvaira sneaks in some looks directed towards Naruto's body. She rarely had time to look at men the way she did with Naruto right now. She would mainly be looking at a screen, reports on papers, and her mech models.

"So this is what every girl my age is interested in these days..." Seekvaira thought to herself. Exiting her thoughts, Seekvaira asked Naruto how his martial arts training was going with Alivian, who replied by telling her he's getting the hang of the basic techniques he learned from him.

"By the time you start your first day at Kuoh Academy, you'll be around a medium level fighter. After that, you can get started on master-level combat."

"And magic?"

"If you want, I can lend you some books later," Seekvaira replied. With a big smile directed to her, Naruto thanks his King. Stopping in front of her studies room, Seekvaira conjures him a black t-shirt. "Didn't you say your guest won't mind if he sees me without a shirt?"

"If he was as carefree as some Devils I know, he wouldn't" said Seekvaira, who opens the door so Naruto could meet her guest, Sirzechs Lucifer, the Crimson Satan. Sirzechs was in the middle of reading a book before directing his attention towards Seekvaira and her Rook.

"This must be the Rook you told me about," said Sirzechs as he closed his book and got up from his seat.

"Sirzechs, a pleasure to meet a new addition to Seekvaira's Peerage," Sirzechs says to the blond.

"Naruto Namikaze. What has Seekvaira told you?"

"That you got stabbed several times saving your cousin, that you have a very powerful demon inside you, that you have a ridiculously large amount of magic energy, and that you can control fire. And when I mean fire..." Out of nowhere, Sirzechs throws a large fireball at Naruto, who immediately catches it and absorbs its flames until nothing is left.

"...I read the reports from when you were possessed by this Infernus and killed your killer by setting him on fire. The fire not only burned him until he was dead, it resisted being put out until it finished. Power like that is very dangerous, that is...if it's in the wrong hands." Closing the book in his hands, Sirzechs tells Naruto to follow him to the backyard.

"Okay..."

Backyard

"My, this garden is as beautiful as ever, compliments to Alivian." Sirzechs said, praising the Agares Queen's work on maintaining it as Seekvaira watched the Crimson Satan speak with her Rook from the patio. "What about you, young man? What do you think of this garden? You could have a tea party here and forget all your troubles, wouldn't you agree?"

"Yeah." When asked if he had a garden like the one Seekvaira has, Naruto answered with a yes, but includes that it was way smaller than the garden they were admiring at the moment. "My godfather sometimes does his writing out in our backyard while having some barley-" Without any warning, Naruto is basted away by a beam of black and red energy, knocking him back, his back dragging against the grass and dirt. Naruto's shirt had a hole at the center of it that exposed his chest, steam coming out of it.

"You really didn't see that coming?" Infernus asked his host in disbelief. "Guy with red hair wearing a fucking cape and big boss shoulder pads and you think he's just here for a tea party?"

"Fuck...off..." Naruto mentally told the demon as he got up. He didn't understand why the red-haired man did that, but whatever the reason, he had no choice but to fight and see where it was leading to. Watching him slowly stand, Sirzechs noticed the lack of injury from where he fired.

"It was supposed to leave a small scratch...Fairly durable for me using only three percent of my strength. Will he last long enough for me to see more?" Naruto rolled out of the way when Sirzechs fires a marble-shaped energy blasts from his left finger like a gun and steadily fires at him as he (Naruto) runs to his right. The Crimson Satan lets out a small smile and fires in front of Naruto blowing up the ground in front of the Rook, blinding him with smoke and dirt. Quickly regaining his senses, Naruto successfully puts his arms in front of him to block a strong mid-air right kick from his opponent.

"Heavy!" That word came into mind as he felt his forearm bones crack from the strength of Sirzechs' right leg. Naruto felt a large amount of pain being delivered to his brain when upon landing on the ground, the confident Sirzechs took his left foot and kicked the side of his left leg, breaking his tibia and fibula. The blond clenched his teeth hard to fight the urge to scream in pain at the top of his lungs. Readying himself to throw his right fist forward towards his opponent's left cheek, Sirzechs, in his head, praised how well his healing was, but felt a little disappointed that the Rook was easily being taken down. Until...

[Jujutsu Kaisen OST - Impatience ft. Paranom and Kasper]

Sirzechs snaps out of his thoughts when Naruto caught his fist with his left hand and knocks him back with a surge of heat, said heat warming up the lightly chilly atmosphere around them. Sirzechs stopped himself from falling on his back, planting his feet hard onto the ground, dragging up dirt until he finally stopped. The Crimson Satan felt the Rook's energy frantically rising, seeing the Rook's broken leg go back to its unbroken state in an instant.

"Okay, now I see what Seekvaira was talking ab-" Naruto does not let him finish, interrupting him with a swiftly made but strong fireball that made the Satan shift his right shoulder reel back from the impact, to his amazement. The attack left a scorch mark on his right shoulder pauldron. The red-haired Satan voiced how difficult it'd be to remove the scorch mark, then put his left arm in front of his chin to block Naruto's upward kick, the force lightly blowing his hair back. Naruto managed to stun him by putting his hands in front of him and flashing a strong light at his face. Enveloping his fists in red flames, Naruto aims to strike at Sirzech's chest with a strong left punch, then hitting him in the face with a right hook. While miniscule to him, Sirzechs could tell that each blow was well-controlled and getting stronger than the previous ones, and he wasn't using the full power of the demon inside of him, concluding that his rising strength was coming from his emotions which served to raise the power and potency of the amount of strength he was able to utilize from Infernus. For Naruto, every punch, every kick he threw, it didn't seem to faze Sirzechs at all. Yes he flinched and felt the impact, but that was all.

"Just what is this guy?"

Naruto jumps to his right to avoid a blast of destructive energy Sirzechs blasted from his right hand at a split second, and counters by expelling flames from his mouth, though his opponent uses his cape to protect himself. He didn't have to, but at the same time, his cape was easier for his wife to clean than his armor. Once he was sure Naruto had stopped spewing flames, Sirzechs blocks the smoke around him away with a swipe of his cape before blocking a fireball by putting his his right hand in front of his face, feeling a minor burn from the attack. After performing a ducking dash to close the distance, the Rook stunned Sirzechs with a right fist to his gut. The muscles in Naruto's left arm flexed as he closed and readied his left fist, an intense heat surrounding the limb. The Rook delivers a left uppercut to Sirzechs' chin, then sharply raises his knee to strike his abdomen, launching him skyward.

"He's getting stronger as the fight grows longer, and he utilizes the bare minimum of power and training to fight me. With the right experience coupled with his quick learning..." Getting a bit serious, Sirzechs brings out his Devil Wings to recover in the air and decides to use ten percent of his strength, having gauged the blond's current strength through the strength of his last attack. Upon using more of his power, the small burn on his right hand instantly disappears.

[Music End]

"I must apologize for not only surprise attacking you, but for not taking you seriously when Seekvaira told me about you. I didn't really believe her at first, but after receiving that uppercut, I am convinced. If you are willing, I would like to continue this fight. What say you?"

"Fine by me," said Naruto, sending four orange crescent waves of energy at the Crimson Satan with a swipe of his right hand. Sirzechs destroys the attack by erecting a barrier of destructive energy around himself. At the same time, Naruto performs a strong jump to take to the air. Sirzechs anticipated a frontal attack, but is surprised when Naruto turned into flames and reformed himself behind him, his right fist cocked back, heat surrounding it.

Sirzechs looked afraid to have Naruto recklessly punch at the barrier and have his right hand disintegrated, finding himself unable to dispel the barrier in time. Sirzechs was left surprised when upon throwing his punch, Naruto had a concentrated and transparent wall of heat between himself and the Crimson Satan's barrier, striking the heat wall. What came next was another surprise to him. The heat from the Rook's punch had bypassed his barrier and struck him hard in the face, knocking him and his barrier to the ground below. Sirzechs, having managed to land on his feet, felt his jaw as he voiced how glad he was to have his barrier cushion his impact, his left cheek show no signs of injury.

"He used a wall of heat to keep himself from recklessly attacking something he knows would be dangerous to touch, and he used an attack that could bypass by barrier..." Dispelling his barrier, Sirzechs instinctively crossed his arms his arms in front of him to block a flame-empowered diving front kick, the heat from it feeling a bit hotter than the fireball he blocked with his right hand earlier. Looking at the flames around his right foot, he noticed they had a red color now before feeling a strong flaming left kick to his right cheek, knocking him to the right.

[Using 5 percent of my strength and holding his own with what little he knows. Previous hosts couldn't hold this much power. Then again, not all Devils would be able to hold a single fucking percent, let alone a normal Human being.]

"That was the strongest kick I swung and you're still on your feet..."

"It'll take so much more than what you have now to get the Ruler of the Underworld to fall on his back," Sirzech told him, giving Naruto a smile after and gesturing him with his left hand to come at him. "Make sure to use everything you can think of to try and take me down."

[Fate/stay night: Heaven's Feel i. presage flower OST - overpowered]

"If you say use everything..." As soon as Naruto taps his left foot onto the ground, a small burst of flame knocks Sirzechs' right foot up, throwing the Crimson Satan off-balance. Naruto appears above him and launched a strong fireball shaped like a fist down point-blank at the devil below him. Sirzech avoids it by sprouting his wings and flying out of the attack's path, showing off his speed the second time.

Quickly charging spheres of energy in both of his hands, Sirzechs straightens his arms to the front, the two spheres forming into one big sphere. Finally, he discharges it in the form of a black and red beam with white lightning around it. Naruto responds by forming a rotating ball of flame in his right hand and uses it to have the beam merge with the spinning sphere. Once the Crimson Satan's beam became part of the sphere, Naruto threw it at him, hitting him square in the chest.

"This is a new one!" Sirzechs thought to himself, finding this the first time someone thought of taking his energy and using it against him instead of getting out of its range. Looking at his chest, he found it exposed, though his skin remained unscathed. Even Seekvaira was surprised by the blond's approach, enough that she got up from her seat and shouted, "Yeah!" before finding her sudden outburst embarrassing and sitting back down.

[Incredible progress...show me how much you can hold.] When Naruto prepares to perform an uppercut with his right fist, the knuckles drag into the dirt as the fist is enveloped in flames. Sirzechs catches the flaming fist, using strong defensive magic to protect his hands from the heat the fist was giving off.

"Having to resort to defensive magic...What sort of Rook did you find Seekvaira!?" The blond Rook's flaming right fist released a burst of fire to break Sirzechs' defense, losing the flames covering it. He then hits Sirzechs in the stomach with a simple, yet strong, forward-stepping side kick, knocking him back but still being unable to make him lie on his back. Sirzechs prepared himself to defend as he blocked a low roundhouse kick, followed by a high one, then another low one, and counters with a back fist to his opponent's chest, making him reel back from the damage he received.

"It wasn't supposed to take this long to gauge you..." Sirzechs told himself, deciding to use fifteen percent of his strength to quickly find out his limits. This ends up forcing Naruto to nearly go on his knees from the pressure. "This will of his is admirable, but if he doesn't stop..."

"The pressure!" Naruto could feel every single bone in his body cracking from experiencing fifteen percent of his opponent's strength, his leg bones snapping as parts of broken bones poke out of his legs, following his ulnas braking in two, the sharp parts poking out of his forearms. He could barely move, his vision was getting blurry, and he could feel his body screaming to stop trying and lay down.

[Music End]

"I have to stop. I not only trained with Alivian today, I was put into a sudden battle with this man I just met. My limbs look like I am getting crushed by a fucking hydraulic press!" Naruto thought. All he had to do was give in to what his body was telling him to do. Only problem was that he didn't want to stop completely. There was something this man wanted from this fight, and Naruto wasn't going to be satisfied till Sirzechs said to stop or until he (Naruto) was able to knock him down once. Like those he'd go up against from back then till now, Sirzechs would not make him stop fighting. Every skirmish he was in to protect Moka and others, save for the moment that made him a Devil, even when it wasn't his business, he would continue to stand on his feet, and he would do the same with Sirzechs, even if his bones were fucked up.

Sirzechs couldn't understand what was going on as Naruto's hair was enveloped in black flames, his eyes going from normal ocean blue to demonic red eyes. Seekvaira, seeing this for the first time, looked shocked by this development, just as much as the Crimson Satan when the blond started struggling to slowly stand up, his bones fixing themselves back to their previous state(s).

[It would appear that he's jumped forward quite a bit.] Once healed, Naruto lets out a loud and echoing roar as he resists the pressure of Sirzech's power and released a large burst of magic energy. Seeing this abrupt increase, Sirzechs and Seekvaira were in awe of the strength he had attained from resisting fifteen percent of the former's power.

"This wasn't what I was expecting..." Sirzechs though to himself, his lips forming into an astonished smile. This smile then fades to worry as Naruto found himself struggling with the power he was wielding.

[It seems he hit his limit with ten percent. Go over and he goes out of control...]

"Naruto! Direct all that power towards me!" Sirzechs shouts.

"What!?"

"Trust me when I say it'll take more than what you have now to knock me down. Release all that power now!" Understanding, Naruto discharged a flaming beam of black and white flames towards the Crimson Satan, who immediately goes into his true form (100%) and easily dispersed the full attack. Seekvaira covered her eyes with her arms as she held her ground until Naruto was done. At the same time, Alivian saw several glass windows throughout the halls shatter from the force Naruto's blast generated, much to his dismay. After 12 seconds, a now tired Naruto stopped, having returned to normal, though he was producing a lot of steam due to the intensity of his attack. After taking a deep breath, Naruto exhaled as the steam around his body ceased. Sirzechs, appears from the smoke Naruto created from his blast, back to normal, though the damages his armor received remained.

"Okay, we can stop now," Sirzechs said to the Rook. "Clearly, I gravely underestimate you. The strength you showed, there's a scarce few who can resist more than about five percent of my strength, and you got up to fifteen. It is inconceivable, truly."

"Sorry..."

"No don't be. It was quite exciting to see," Sirzechs assured, Seekvaira rushing to Naruto's side and asking him if he was fine.

"I am. That attack took a lot out of me, but I am fine."

"Are you sure!?" Naruto gave her an assuring nod to strengthen his response, receving a slap on his chest after from his King. "What were you thinking!? Continuing when you looked like you were going to be crushed like a Jill Sandwich!"

"I am aware I should have stopped, but...this is a bit ridiculous, but I don't like going down. My Mother was the same, along with her side of the family. Unlike her I wasn't tough in a fight, yet I always managed to keep standing until help showed up. Even when facing you (Sirzechs), I can't help but not quit."

"Reminds me of my Mother," said Sirzechs.

"By the way, are you okay?" Naruto asked Sirzechs, who was taken aback by the question for a good second before smiling and assuring him that a blast like the one Naruto discharged wasn't even enough to give him trouble once he went into his true form. "Just what are you?"

"Oh, right, I never gave you my full name. I shall introduce myself again. I am Sirzechs Lucifer, and I am the current ruler of the Underworld." Naruto looked freaked out by the sudden reveal that he had thrown down with the ruler of the Underworld, and had also damaged his armor.

"S-Sorry about the armor," Naruto told Sirzechs, the blond looking a little pale. "I-I'll pay for the damages that need repairs when I am able to find part-time work."

"That is fine, young Rook of Agares," Sirzechs told the blond as he waved his right hand left and right to let him know it was all good. "It'll be a surprise for my wife to have to take it to actually get it repaired when I get home."

"That is...good? That armor looks very expensive to make. Repairs would be more I think."

"Not really expensive to make or repair for me," the Crimson Satan assured. "As for work, that is exactly why I am here. I'm here to offer you a job." Hearing that, Naruto looks at him, confused. This devil came all the way here, just to fight him as a means to find out what he could do with the power he had, and to give him a job offer? "Seekvaira thought it best to contact me to give you a way to use your abilities in a means that suits you and meets your needs to relieve...pent up anger and give you real world experience to further understand the powers you have and a better grip on it," Sirzechs told the blond Rook, who directs a questioning look at his King.

"I came to the conclusion that your act of...violence stems from an unknown amount of years holding in your anger, which I'd say is both impressive and...scary," Seekvaira told Naruto.

"It's pretty risky and covert contracts and missions. I, like you, despise those who abuse their powers for their own selfish needs, who do injustice in the name of justice. After seeing those black flames, and the progress you made with our fight, she was right to ask for me. I won't force you to take the offer, for the choice is yours to make.""

"...What would you have me be?" Naruto asked.

"Assassin, Agent, Information Gatherer, Bodyguard, all for the sake of peace. Without anyone but you, me, and Seekvaira knowing." Naruto wasn't convinced. To kill for the sake of peace behind people's backs, all to get a handle on what he was becoming? Hearing what he'd have to do as a job made him uneasy. Until...

"Take the offer!" Infernus shouts.

"Just like that!?"

"Not every war was won with words Naruto. Most wars were solved by sacrificing many lives and by taking them. Some were even done without their superiors knowing. Besides, a guy like Sirzechs giving this offer to you, other than dealing with your inner problems, you're getting paid." Hearing Infernus's smart reply, something that left Naruto surprised, he actually agreed with the demon. Wars throughout history always had its fair share of casualties, so it couldn't be helped. Exiting his thoughts, Naruto agrees to Sirzechs's offer.

"However, I will only take them if they're from my King."

"Being loyal to the one who saved your life, I like that. Very well, do you agree to this Seekvaira?"

"Of course," Seekvaira answered with a smile.

"Glad to hear it. I won't lie, what I will have you do, it's not something easy to deal with, mentally, so if there are things I ask of you that you don't want to do, you don't have to do it, nor do you need to force yourself to."

"Will have to figure out the wills and will nots a task at a time."

"I'll be on my way now. I look forward to working with you Naruto."

"Likewise..." Saying nothing else, a red magic circle appears under Sirzechs' feet and envelops him in a bright red light. Once the light disappeared, so to did Sirzechs. "So...you asked the Ruler of the Underworld to see me?"

"Sorry Naruto, I had to ask him for help. I couldn't help but worry about all that bottled up anger of yours and what it'd might do if you didn't have a way to deal with it without endangering people. I know you're a good person, but..."

"I understand Seekvaira. You called him because you were worrying about me. There's no reason for me to be angry with you if you're doing this to help," Naruto assured. "I do wished you'd tell me about it beforehand."

"I wasn't sure you'd agree to see him if you knew," said Seekvaira.

"Perhaps..."

"Excuse me Naruto, but did you cause a ruckus a few minutes ago?" Facing the newly arrived Alivian, Naruto went pale seeing how angry he was at seeing the garden was devastated.

"Sorry..."

"I understand why the garden, but I am not cleaning up the windows you shattered with that attack of yours," Alivian sternly told the blond before throwing him a broom and dustpan. "You can't rest and begin your magic training until you clean up all the broken glass."


With Sirzechs

Underworld

Gremory Territory

Sirzechs and Grayfia's Room

[Short Lemon]

Sirzechs made constant and steady thrusting movements as he lets out several gasping moans from the feel of the moaning Grayfia's pussy around his his seven-inch cock, the slapping of bare naked flesh against bare naked flesh echoing throughout the bedroom. Following the fight with Naruto, Sirzechs had cancelled his whole schedule for today, deciding to head straight home to his wife. When Grayfia asked about the damages to his armor and the soot that covered parts of his cape, Sirzechs did not answer, instead telling her to head to their room. As soon as they entered, Sirzechs surprised her with a passionate kiss that made the woman's nether regions ache with lust, leading them to discard all of their clothes and make love to each other on the bed they shared for several years. Grayfia's moans served to make Sirzechs thrust harder and harder, making the bed creaking with every movement he made as his hands grasped at her butt cheeks.

"Sirzechs, I'm almost there!" she informed her husband in-between her moans.

"Not yet!" Sirzech told his wife, switching from doggy style to a reverse cowgirl position, standing on his knees as he held Grayfia up by her thighs and bounced her on his cock, the silver-haired woman's large breasts bouncing each time. After minutes of nonstop riding and bouncing, the married couple let out a harmonious and orgasmic scream as the Crimson Satan strongly thrusts his girth hard into Grayfia, her pussy squeezing tightly around his length as his throbbing cock erupted in a thick splurge of seed painting her insides white. Finished, Sirzechs removed himelsf from his wife's pussy, his cum leaking out of her as the former rests his back on the bed, covered in sweat, Grayfia collapsing on his chest, equally sweaty, a satisfied smile on her face.

[Short Lemon End]

Seeing Sirzechs damaged armor soot-stained cape on the floor with the clothes they discarded, Grayfia asked her husband if what happened to his armor have anything to do with the sex they just had.

"Partly. I was fighting the second Rook of Seekvaira's Peerage," he told her. "He put up a fairly satisfying fight for an amateur Devil, got me to actually use my true form."

"He did that?" she asked as she got off of her husband and laid on his left side, her head rested against his chest. "I can't imagine him being actually doing that."

"Seeing is believing. His growth in strength is both incredible and scary. Prior to using my true form, he managed to overcome the pressure of my power at fifteen percent after five minutes of fighting him." Now Grayfia looked surprised. There was barely anyone aside from his Peerage and herself who could handle more than that. "At his current strength, I believe he can give Surtr II some trouble."

"Ara, you make it sound like he'll one day steal the title of Ultimate Rook from under his belt."

"He'll have to eventually fight him for it."

"...Did he take the job?" Sirzechs answers stating as long as it was from Seekvaira, he'd accept most of them. "Do you think he can handle it?"

"With what he has inside of him, indefinitely. With the missions I may set upon him, I am certain that he and the demon inside of him will learn to rely on each other through the tough parts of the job."

"I surely hope so..."

"...Grayfia, I cleared my schedule for today. After we get ourselves cleaned up, let's say we leave Milicas with my parents and go out and have ourselves a good time." Grayfia hummed in delight at this, telling her husband she may have to thank the Agares Rook for fighting her husband and allowing her to have some quality time with her husband.

"For now, let's lay here for a while," Grayfia tells him, who responds by wrapping his left arm around his wife's waist to keep her close and kiss her on the forehead.