Shirou Emiya felt sick.

That had been his primary state since Emerald's revelation about another Class Card being at his school.

Of all places to appear, it had to be there, so dangerously close to his friends and classmates. Well, it wasn't like he'd started this for any other reason, but he was too scared to even imagine the sheer damage of what would've happened had he never found Emerald and become Debonair Emerald.

Waiting up and preparing had been easy, especially as he'd let Sella handle the chores for the day in other to prepare himself for his midnight jaunt. The real problem had been Leysritt who had noticed what Sella had been too smug to see.

"Did something happen?" Leysritt asked after cornering him in the hallway while Sella did the dishes. "You're tense."

"...I'm going out later tonight." Shirou replied, mixing some truth in his excuse. "There's something at school that I need to fix and I've been feeling kinda antsy at the thought of leaving it for later."

Leysritt tilted her head. "Why? Is it important?"

"Very." Shirou stressed with a wry smile. "I might even sneak out later to go deal with it."

"It must be super important." Leysritt hummed with her crossed arms pushing up her bust. "You're not really as troublesome as Sella always claims."

"Yeah, which is why I'm letting you know as our family bodyguard." Shirou replied. "Just don't overreact at our door being used in the middle of the night."

Leysritt hummed some more before shrugging. Shirou sighed in relief, only to stiffen when she stepped forward and pressed against him. "Do you want to let a load off?"

For an instant, Shirou wanted to refuse. He wasn't sure what he'd started with Sakura, but it still felt like they'd become a lot closer than they had been before. On the other hand, there was really no legitimate reason why he had to refuse...

In the end, under the rationale that he really did want to destress before his upcoming fight with a Servant guaranteed to be stronger than Assassin, Shirou dragged a compliant Leysritt with him into the nearest closet. "Turn around and bend over. Shorts off."

Giving Shirou a small but eager smile, Leysritt did as she was told, enjoying his commanding demeanor and pushing down her exposed ass at him. It's a very clear offer that Shirou would normally take... but not so early.

Dropping to his knees, Shirou grabbed hold of her pale thighs and spread them wide, appreciating the feel of lean muscles hidden beneath soft feminine flesh before his tongue slid into her from behind.

Leysritt jolted from the action, biting her lip to stay quiet. It wouldn't do for either Illya or Sella to hear the noises after all. But even so, Shirou was relentless in his oral assault as he delighted in the small squeaks he kept getting from the usually composed girl. Soon enough, a particularly deep shove of his tongue earned him a flow of nectar into his mouth as Leysritt humped her hips in her climax.

Now when she was all but slumped against the wall, Shirou freed his cock from his pants and finally buried himself into her welcoming depths. Rocking his pelvis against the welcome cushion that was her ass, Shirou gripped Leysritt's hips tight as he slowly fucked Leysritt back into awareness. Noting it to be the first time he'd fucked her since Emerald magically pushed a myriad of martial art knowledge directly into his body, Shirou felt his control over his body a lot better than ever before he drove Leysritt into another orgasm without cumming yet himself, one hand drifting underneath her top to grope her breast while the other pushed a finger into her gasping mouth.

Before he knew it, Shirou had established a slow and brutal rhythm, using the full length of his cock. Leysritt shuddered with each ass rippling thrust, her tongue idly licking his hand while her own hands weakly pressed against the wall. But even he could only last so long.

Shirou buried his face into Leysritt's shoulder with a groan as he cummed, filling her up with his seed while she peaked for the third time.

"...you got better." Leysritt noted.

"Thanks."

When there were only thirty minutes to go, Shirou was ready. However, it wasn't just him. Just as he'd stepped down the stairs, he'd heard Illya's door open as his little sister came out. Realizing how hard it'd be to explain why he was fully dressed to go out so late, Shirou immediately resorted to hiding out of the way just as she came down the stairs.

However, his hiding spot then gave him full view of the Kaleidostick floating after Illya as she headed for the door just as fully dressed as him, a Kaleidostick with a yellow five-pointed star as it's center along with white fairy wings assisting it's flight...

Wait a minute.

"Emerald." Shirou quietly growled after Illya had closed the door after sneaking out. "Did you know that there was another Kaleidostick in our house?"

"Yeah. Since when Ruby smashed into your nose last night in your bathroom." Emerald dodged his furious swipe. "But do you want to question me now? Or do you want to find out where your ten-year-old sister is heading off to in the middle of the night?"

It was a choice that didn't even need to be hesitated upon.

Following after Illya had been surprisingly easy(He'd have to find a way to give her awareness lessons against stalkers later), especially after realizing that she was heading to his school. Was she...?

"Emerald, what are the chances that she's going after a Class Card?" Shirou hissed while walking atop a brick fence, hidden within the shadow of the large tree next to it.

"...it's unclear, to be sure." Emerald replied after a pause. "That Kaleidostick is an improved model compared to me and quite a bit more versatile, but I don't think she'd actually let a child fight a Servant without making her as strong as possible. That's if, she actually allows the fight to happen at all... No, wait, she'd allow it. Sapphire's the reasonable one between us all."

"Ah, I remember you mentioning the Sapphire one as the sane, but repressed one." Shirou noted as they all reached Homuhara Private Academy. Making sure to transform just in case anything happened here with it already being just five minutes to midnight, Shirou hid within a tree when Illya finally came to a stop before a familiar figure. "No way..."

"Oh, you're here." Rin Tohsaka spoke upon seeing Illya, instantly recognizable despite the years since he'd last seen her.

"Of course!" Ruby chirped from beside Illya. "My new Master is much more even tempered than my previous Master! She actually listens to my advice, making her ten time- No, a hundred times bette-"

A mass of dark red prana condensed into Tohsaka's index finger before firing at Ruby at bullet speed, blasting the Kaleidostick.

Shirou frowned at the implications of what he'd just witnessed. Illya, just like him, had become a Kaleidostick Master very recently. Maybe even just last night, if he were to harbor a guess. Combined with Tohsaka's response despite not being named and Illya's clear unwilling presence, she was the former Master... as well as a magus like Sakura.

"Th-That's not important right now." Tohsaka blustered, reminding Shirou of the few times she'd acted the same usually in his company. "What's important is all four of us dealing with the Card."

"'Four' of us?" Illya asked.

"Yes. You, me, Ruby and our mystery guest who followed you here." Suddenly whipping out her arm, Tohsaka finished her sentence with a barrage of much stronger blasts at Shirou's tree, causing Illya to shriek when it exploded from the concussive shots. "Who are you?!"

"I could say the same of you." Shirou walked out of the smoke, completely unharmed by the magical attacks. He especially appreciated the way they froze upon sighting Emerald's scepter form pointed at Tohsaka, verdant energy gathering up. "What did you do that a Kaleidostick chose a literal child over you?"

"Emerald!" Ruby called out. "Your Master's so protectively badass!"

"Ruby!" Emerald called back. "Your Master's so adorably confused!"

Shirou opened his mouth to speak before a strong sense of danger prompted him to dodge aside a flurry of dark red magical shots bombarded the spot he'd been standing seconds ago. The culprit was a blonde foreigner in a frilly blue dress, her finger smoking idly while raising a perfectly manicured brow. "Another accomplice of yours?"

"Accomplice?" The blonde sneered. "Why would I be such a thing to a barbarian like her?"

"Who do you think you're calling a barbarian?!" Tohsaka snapped.

"Don't take that tone with me, Rin Tohsaka." The blonde shook her head as she tsked. "You'll make me look like a liar before this gentleman."

Shirou could her Tohsaka's teeth grinding. "You are a liar!"

"Enough of this!" Shirou stomped his boot, which had the desired effect of shutting the girls up as the ground cracked apart beneath him. "Answer me, Tohsaka! Why is that girl wielding your Kaleidostick?! What are your intentions here?!"

"Why tell you... when we can show you?" The blonde smirked, daintily raising up her hand. "Miyu, do it! Forty meter diameter!"

Shirou's eyes widened as a brunette girl the same age as Illya stepped out of the shadows from behind the blonde, dressed in a purple butterfly-themed Magical Girl outfit that she was a tad too young for. And in her hands was the third Kaleidostick, a six-pointed star bearing indigo butterfly wings. "Another kid?!"

"[Adding Imaginary Axis to the Fifth Instrument Variable.]"

Shirou twitched in shock as a familiar glyph appeared beneath his feet, humming with power as it filled up with blue symbols rather than his green and heralded his second venture into the Mirror World.

Almost immediately, the air warped as the Servant of this space tore through into existence. The Servant was a woman in black with long pale purple hair that writhed in snake-like motions, her own 'mask' looking like it was eldritch flesh as a single eyeball glared out at them.

"Ruby, transform your Master and protect her!" Shirou immediately ordered, ignoring the others' surprised responses as he gave his opponent his full attention. "Emerald, who is this?"

"Not sure, but judging from her STR stat, don't go thinking of taking any physical hits from her." Emerald replied as the crouching woman deemed Shirou the most dangerous one present and leapt right at him. "Rider incoming!"

Reacting too late, Shirou caught her kick, wincing from the immense shockwave as his arm felt like it was about to break. Undeterred, Rider twisted her foot in his grasp and swung about with her other leg, nearly taking off Shirou's head had he not dodged backwards.

Apparently, he wasn't even allowed that much as a spike attached to a chain immediately flew at him from her arm, grazing his arm and tearing through the ground as she immediately took advantage of his lull in attention to charge at him again.

"[Anfang(Begin)]!" Tohsaka yelled as she flung three rubies at Rider. "[Dreifache Sprengen(Triple Flare Blast)]!"

The rubies impacted with powerful explosions from each one, engulfing Rider in flames that seared the earth. As for Shirou who'd been too close, he stared in surprise to see Illya now in front of him with her own pink-themed magical attire, a luminescent star-shaped pink shield protecting them from the blaze.

"Um, are you okay?" Illya asked in worry. "You're like Rin-san, right?"

"...I'm fine." Shirou patted her head in appreciation, missing Illya's confused reaction while he watched the blonde foreigner throw some gems which created a localized space that multiplied the gravity around Rider, pinning her down for an instant before she broke through. "Cover your ears."

Not waiting for her reply, Shirou recalled one of the spells he'd created using Sakura's spellbooks. First, he'd normally need to trigger his circuits on, but had no need to when he was already transformed into Debonair Emerald.

But still, habit, as short-lived as it was, was invoked nevertheless as his mental trigger switched on. "Cooker... on."

What? Shirou's Origin had turned out to be 'Household', and nothing really galvanized him as when he was cooking. In response to his switch, Shirou grinned as his fist started to heat up, Emerald's power amplifying his spell several times over.

Just in time, because Rider had apparently been preparing a special attack of her own, the single eyeball of her mask emitting bloody miasma that formed into a glyph.

"[Moeru Shōgeki(Blazing Impact)]!" Shirou launched forward just as the bloody glyph became frightening meticulous, his fist ramming through Rider's chest and exploding viridian flames and lightning directly into her body. Shirou heard a shocked scream from the grisly result but focused on Rider as she still gripped his arm despite coughing up blood. "Emerald."

"Sayonara!" Firing pointblank into her midsection, Emerald blasted away more of her torso and finally caused the Servant to kneel in defeat. Dissipating into motes of light like Assassin had, Rider left behind a card with the image of an armored knight driving a chariot, the word 'Rider' written below in English. "Rider has been defeated!"

Shirou grabbed the Class Card and held it up in full view of the girls, turning about to face them as he let his Debonair transformation fall and relished Illya and Tohsaka's dropped jaws(weirdly enough, the brunette girl with Sapphire had a strong reaction as well). "So, I believe we're all due for a talk."

KingVessel: It was really hard thinking up an original Origin (heh) for a Shirou who never got Avalon-ed.