A/N: Okay, so a bit shorter than I'd like for the side story and lemon, but to make up for this and apologize, I added an omake to the end I think you all might like. As for the lemon this chapter, it could be either a shorter lemon or a bigger lime, depending on your perspective on such.

Disclaimer: I do NOT own Fate, Highschool DxD, or any other franchises referenced in this chapter.

King of Wrought Iron Book 2: Guardian of DxD-Omake Side Story

Side Forge Four: An Offer of Salvation, Loose Ends Cared For, and a Steamy Session of Passion

Undisclosed Public Hotel, Kuoh Town's Business District

Third-person P.O.V.

In a private room in a low-end hotel in Kuoh Town's business district, Lyle Walner was packing his bags up and prepping to leave after renting the room for the last few days under a false name and counterfeit credentials. The Church Slayer is technically a fugitive from the Church, and just like how Emiya Kiritsugu was in his final years of activity leading up to his employment under the Einzberns, Lyle made a lot of enemies.

As he was beginning to leave and check out, he heard a knocking on the door to his hotel room. Wary and cautious, Lyle held a knife behind his back and prepared to deal with and silently eliminate any potential threats if that was the case, as he looked out the peephole only to be frowning at the person he detected right outside his door. Sighing as he put the knife down and opened the door in resignation, Lyle Walner stared right at the guy with a rather nonplussed look in his eyes as he just had to ask.

"...what do you want, Emiya?" Walking in to take a seat right next to Lyle, Shirou took a weary seat across from him as he responded. It was clear from the level of exhaustion he suffered was less physical and more mental fatigue, so it was apparent it would be a short meeting.

"Just wanted to speak with you before you left town, Lyle. And if you were interested, make an offer to help you out." Lyle's frown simply deepened as he responded flatly to the claim.

"...whatever it is you want to offer, the answer is 'no'. I-"

"-am dying with less than ten years left to live, thanks to a certain recently dead fake priest."

Lyle froze at that statement, as Shirou simply looked Lyle right in the eye, his eyes a mere void of emptiness and his tone like that of a corpse imbued with the ability of speech with how dead it was, unnerving even Lyle with how anyone could possibly be so dead-sounding and yet so powerful. He was so full of life just mere moments before, albeit exhausted from the clean-up at Kuoh Academy. He couldn't help but to draw parallels between the current Shirou and Ophis at the moment from what he knows about the Ouroboros Dragon God of Infinity. The utter seriousness in his demeanor showed he was not playing around and had every intention of speaking with him on the subject, whether Lyle wished to speak of it or not.

"...so you know." Lyle phrased it like a question, but he wasn't asking one. He said it like a statement, for that was what it was. A mere observation. Shirou simply continued in the same dead tone he spoke with, unintentionally getting Lyle's attention by showing just how serious his situation really was as he explained his sources.

"I do. It wasn't that difficult breaking into the Vatican's archives to find out what I wanted to know when Kiba went missing for a few days. If I can literally break into hell completely unnoticed if I don't want to be caught for six months straight, then breaking into the Vatican shouldn't come off as a surprise. I dug up everything on Galilei and his projects, and came across his research on human enhancement procedures, with your name listed as one of the few 'successful' subjects." Shirou shook his head as if in disappointment at that.

"Galilei used similar procedures to the body modifications typically done upon homonculi rather than humans. That's the real reason why most of the subjects died; the human body wasn't strong enough to undergo such stressful procedures that increases the body's capacities at the cost of shortening the lifespan of the subject of said procedure. You're not even going to see thirty at the rate things are going for you, and that's without all the enemies you made gunning for you, Lyle."

Lyle showed a damned good poker face, yet internally he flinched at that. He knew more about that then he could ever hope to express. He knew he'd most likely never be trusted by anyone, not even those he worked so hard to protect, dirtying his hands to help ensure that Pope Francis' reign as the leader of the Christian Church can be as peaceful as possible. Lyle is actually not a traitor to the Church in the slightest. He and Shirou both knew this. It's the reason why he came to see Lyle before he skipped town to talk to him.

"...and why does it matter to you what happens to me? If I am to die, then I will die doing what needs to be done. I won't run from my death when the time comes, nor do I seek any complacency offering false hope for my situation." Lyle began to walk towards the door, intending to leave, but Shirou's next words stopped him in his tracks as he processed them in his mind.

"What if I told you I might be able to at least restore your lifespan back to a normal one?" Lyle stopped, mind running thousands of miles a minute, trying to figure out what he means and what catch he might have for doing this, what benefits he gets out of it, and most of all, why he would even say such a thing. "All while keeping the improvements Galilei gave you, and possibly giving a few more that would assist you, Lyle?"

Shirou then pulled out a small silvery piece of carved and shaped metal, and it looked like an effeminate musketeer, with a musket rifle held over one shoulder lazily while the other pointed forward holding a pistol ready to fire. The feeling it gave off was very familiar to Lyle, whose eyes narrowed as he glared at Shirou in obvious irritation.

"An Evil Piece? If you're asking me to sell my soul and throw my humanity away, you can forget-"

"This isn't an Evil Piece, Lyle. This is a Servant Piece, my version of the Evil Piece System. Though still a prototype, aside from gaining strengths and weaknesses of the affiliated piece, you will still be human. And most of all, it'll undo the damage Galilei did to your body. It also won't force your obedience to any commands given to you like how Evil Pieces can with reincarnated devils. Your loyalty and obedience is optional and can be earned. I'm simply leaving it with you to take and decide for yourself if you wish to accept my offer, and the benefits that come with the Servant Piece."

"...don't want it. Don't need it."

"Unfortunately, that's out of both our hands Lyle. This Servant Piece has already decided you are the one to receive it."

"...what?"

"Unlike the Evil Pieces, my Servant Pieces choose who they are to be bestowed upon. I can narrow down possible candidates as the owner of these pieces, but it is the piece themselves who decide whether or not to react to someone's presence. And this Servant Piece was responding to your presence the moment you got to town a week ago, so it won't let anyone else take it but you. You and I have no say in the matter whatsoever."

Shirou actually sounded a bit frustrated by that a bit, as he began to get some life back into his words and actions. Lyle felt conflicted about this. As he was hesitating about whether or not to accept it, Shirou then stood up and decided to leave the Servant Piece with him. "Here, catch."

Tossing it in an underhanded softball throw, Lyle caught it, and simply seemed conflicted about it as he tried to refuse but Shirou simply said the words that would later lead to Lyle making the most important decision of his lifetime, and later meeting the woman who would be the light of his life just as Irisviel was to Kiritsugu.

"Keep it, Lyle Walner, Church Slayer and Hero of Martyrdom. Should the day come when you find need of it's power, know that I will not stop you, and even help you to find a way to accomplish your goals to the best of my abilities without hindering your attempts to achieve your goals, whatever they may be and assist in whatever way I can." Shirou spoke with a tired but content smile on his face, much to Lyle's confusion as to why he seemed so serene, while simultaneously empty inside.

Shirou then left with those parting words, heading home to finally sleep after a very tiring week of dealing with Kokabiel's antics. After he left, Lyle stood there for a few minutes before looking at the piece, and noticed an engraving on the base, one he felt resonated with his being as he left and decided to hold onto it for now as he checked out of the room and left Kuoh for the moment. All the while, Lyle pondered Shirou's words and actions, wondering if he could someday find some fulfillment despite the hollow, empty life he leads, just as Shirou seems to have, not noticing the Servant Piece Shirou left him slightly glowing in his presence, along with the engraving he just looked at...

'...Gunner-Hero of Modern Weaponry...'

Scene Change

Two days later, Emiya Residence

Shirou P.O.V.

I was rather groggy as I woke up this morning. I noticed the sun was out, but it was a good thing that school got canceled for the next week citing repairs from a runaway semi truck that crashed into the school. After restoring most of the damage with my magic, I essentially 'borrowed' a semi from a local trucker down the street as part of the ploy to make it far more believable. The looks I got from everyone for that one was utterly priceless about how I stole a truck and rammed it right through school grounds to make it believable.

Yet oddly enough, as I looked at the sun coming into my window, I noticed it was far later into the morning than I normally wake up...and also...what is this oddly pleasant and familiar sensation below my waist...wait...hang on a second!

I am suddenly wide awake and immediately looked down, but have my jaw practically hit the floor and my eyes bug out of my skull as I caught sight of something I've seen more than a few times in the past, but could not help but shout out in disbelief of what I was experiencing…

"What in the Fucking HELL did you girls do to me last night?!"

Warning: The following is a minor Lemon/bigger Lime. If you do not wish to read it, then skip it.

Third-person P.O.V. Shift

As Shirou was essentially woken up to a literal group of very horny beauties essentially slurping down on the utter monster erection he was sporting, and it was bigger than usual with a strong emphasis of 'monster'. His balls were also swollen and bloated far more than they were last night when he went to bed, almost painfully so with how heavy and full of thick, potent semi-divine daemon sperm. And each of the four girls in question laying in his bed were making it very clear what they did and what their intentions were.

Serenity was wearing a rather risque version of the assassin outfit she wore when she first met Shirou back in Kyoto, with a sultry and seductively transparent negligee-like cover on top, her rather moderate-sized breasts on display with her erect nubs of her nipples hard as diamonds blatantly obvious. She was wearing the jewelry-type mystic codes he crafted for her accentuating her curves and beauty with dark purple make up and eyeliner to accentuate her gray skin tone and blue hair.

Arielle and Aika were both wearing matching outfits with slight differences and deviations with their builds and lineages in mind. The half-Fallen witch was wearing a black racy lingerie with garter belts and such, but left room for her twelve wings to be out and on full display while Aika wore a similar set in a wine red color. Arielle also had black lipstick and Aika had red lipstick as were kissing and fondling up and down my engorged meat bat and painfully swollen scrotum. Aika also had a tiny witch's cape while Arielle wore a witch's hat, both matching their respective lingerie.

As for Raynare, she was dressed in a slutty french maid outfit that essentially exposed her ass, left nothing to the imagination, and was simply a frill apron, hairband, and left her back totally exposed with her six wings out and her lips had a blue lipstick on and her face blushing while moaning as she sucked up and down his tip as the others were laying around his crotch face-first, getting Shirou worked up while keeping him blue balled at the same time to keep him from popping his cork until they wanted him too. Raynare then stopped her sloppy and slow blowjob as she responded, with what Shirou would swear were hearts in her eyes as she answered his question with a happy and very cock drunk slur as his shaft and balls were both marked up and down with red, blue, black, and dark purple lipstick smudges from where the four had been blowing and kissing his shaft while denying him orgasm all night.

"Mashtah...we slipped a little something into your food and drink last night to make this far more enjoyable for us. Ahhn.~" Raynare licked his swollen, painfully hard shaft as it throbbed angrily with numerous veins standing out before she continued. "Aika created it using her tantric magic and she also used a spell to make it far more enjoyable for us.~ But this naughty maid is the one who slipped it into your food and drink last night~ So feel free to greatly punish this bad, bad maid with your mighty COCK, Master.~"

Shirou felt his last shred of reason at that snap and his lust he normally kept locked away was let loose. Using his newest trick he created in his fight against Kokabiel, he generated three perfect copies of himself, all the way down to the effects upon his body as they each lifted a girl and positioned them to get what they were seeking in the form of a massive monster dong slam-fucking them balls-deep and pumping his backed-up loads straight into their unprotected and fertile wombs.

The real Shirou took Raynare to punish her directly, but as he slammed the four balls-deep onto his monstrously swollen shaft, the tantric seal Aika placed on their navels right over their wombs shattered completely. But rather than break its effects, it had inadvertently increased some while losing the others.

At that moment, all four girls were exceptionally horny, their pleasure had been amplified by twice the normal amount, and the fertility manipulation seal had been completely ruined. They were each ovulating from both ovaries at once, resulting in all four of them, even Serenity who normally can't, to guarantee pregnancy with twins for all of them.

Raynare was happily taking the 'punishment' and even begging him to 'make her his bitch as her punishment' and to 'fuck her silly' while 'disciplining her with his bitch-breaking cock' while in her aroused and heat-addled mind. Being his maid had inadvertently affected her fantasies and desires from her 'master'. As for Arielle and Aika, they were both loving it as each 'Shirou' utterly wrecked them both simultaneously with his engorged shaft and backed-up balls as they slapped repeatedly against their asses while clenching tightly and eagerly for his seed. As for Serenity, she was wantonly mewling erotically and cutely as 'Shirou' proceeded to carry out the request she maid on her first night with him when she gave her virginity to him.

Each Shirou had slam-fucked the four girls for about an hour and a half before his balls finally began to audibly churn, their already swollen shafts expanding to three times the already monstrous thickness and they roared and his massive balls for each Shirou simply expanded before he exploded inside all four of them with such force there was absolutely no avoiding it. Shirou essentially fucked all four of them into a literal orgasmic bliss and was actually still plastering their wombs with so much, their bellies had swollen and even then he kept coming, the excess actually squirting out and flowing onto the floor from the overflow.

Each Shirou kept their release for a full three hours straight and the four girls passed out from coming too much and too hard, but Shirou kept going, even while coming and impregnating all four of them for the rest of the day. By the time he finally stopped and came to his senses, he had essentially ruined his floor and needed to replace the tatami mats in his room and had four more girls pregnant with his children. The four were put into a sex coma for a full day and a half while being unable to walk for a full week, leading to a very awkward talk with Aika's parents as Shirou was forced to talk to them and reveal the existence of his rather unintentional and unwanted harem of baby mamas he had from his travels as part of the Emiya trade as mercenaries.

Though they kept the supernatural aspects of their life hidden from Mister and Misses Kiryuu, the fact he was willing to take responsibility for knocking up their daughter was a discussion Shirou REALLY did not enjoy having to make with his girls. Just wait until he had to deal with Susanoo and Azazel. THAT was something he really did not need nor want to deal with…

End Lemon/Lime

Omake: Somebody call for a Runaway Truck?

Third-person P.O.V.

The ORC, the Student Council, and Kurotetsu were finishing up cleaning the destruction of the academy grounds from the battle against Kokabiel, yet something was bothering them. Sona took one quick look around before turning an irritated glare to Kurotetsu.

"Kurotetsu."

"Yes Sitri-san?"

"Where is Emiya? Do not tell me he ran off to avoid the clean up…" Sona said, angrilly imagining what punishments to give him if he did.

"He said he'd be back in a few. He needed to go get the truck." Kurotetsu's response confused everyone as Rias spoke up.

"Wait...What truck?" *SCRRRR-CRASH-Ba-Ba-BA-BAM*

Suddenly as if in answer to her question, a semi truck suddenly plowed right through the freshly rebuilt and almost repaired walls before crashing right into the school and smashing the walls, stopping and catching fire as it damaged the building before the school's sprinklers went off to put out any fires before they could start. And landing not too far from them as they just gawked at him in utter disbelief as he jumped from the drivers seat after guiding the semi truck he drove and obviously stole into the school and crashed it into the school building. Nodding to himself, Shirou then responds to their looks of utter disbelief.

"Okay, that takes care of the cover story for whatever damages happened here. One runaway semi truck to play the part of the source of the damage complete." He smacks his hands together before noting their looks of utter disbelief at what he just did while Kurotetsu simply shakes his head at his creators antics. "...what?"

They didn't answer and simply kept gawking at him in pure disbelief with Kurotetsu shaking his head while running interference with the Fire Department to delay them a bit while covering their bases.