A/N: For my next March 2022 one-shot, I decided to revisit an old friend one last time.

Without further ado, Enjoy!

Hyperdimension Symphogear 3

Lowee Basilicom

Ugh! This is not how I was hoping today would go... I figured big sis Blanc would take the day off like the other CPUs (at least from what I've heard from Nepgear and Uni with their sisters taking the day off...) But, as I expected, she's busy working herself to death instead of spending time with us...

Not to worry though. Because I have a brilliant idea that just might get our dear sister to play with us! "Umm... Ram?" My twin sister, Rom, asked. "What exactly is this 'plan' you were talking about?"

"Well, it's no secret that our dear older sister never seems to have any time for us, right?" I explain as we go out into the courtyard. Rom, of course, nods in agreement. "So, I figured, what if we got stronger so that she could take more days off while we do some of the hard work around Lowee?"

"I... still don't follow how this fits into big sis having time for us." Rom replied.

"It's simple, Rom: The more time big sis has to herself, then there'll eventually be a point to where she'll have done all the things she'd want to do by herself, meaning she'd come out of her room and spend time with us!" I explain. "Plus, it allows us to become more popular as Lowee's CPU Candidates, so it's a win-win!"

"That's a really great idea Ram!" Rom said, giving my genius plan the praise it was due. "But, how exactly are we going to become stronger?"

"By training ourselves, of course!" I answer. "So, for our first bit of training, I figured we could focus on-"

"Ram! Look!" Rom suddenly shouted, pointing up towards a strange light in the sky. "What is that?"

"I... I don't know!" I say as I try to figure out what was going on in the sky. Suddenly, the strange light broke off into six colorful ones, with two of them falling right towards us. I squinted my eyes to see what exactly was falling, and I let out a gasp "Are those... People?!"

From what I could see, the mysterious figures were wearing some bright pink and green clothes, but those clothes suddenly vanished and the two figures were flailing as they fell. "Oh no! They need help!" Rom cried.

Well, this isn't exactly what I had in mind with my plan, but I'll use it to my advantage. "Rom! Change of plans, our first bit of training will be saving those falling people!" I'm sure she saw through my on-the-spot idea, but I'm just happy she nodded in agreement to it.

And so, we quickly transformed into our Hard-Drive Divinity forms and flew into the sky to save the mystery people. "I got one!" I hear Rom shout from the distance.

"I got this other one, then!" I replied as I quickly sped up to catch the other falling person. I'm glad I did speed up, though, because this person would've been dead if I hadn't. "Don't worry! I gotcha!"

"Thank you! Thank you so much dess!" The person shakily thanked me as I carried them back to the basilicom's courtyard. Once we touched ground, the people Rom and I were carrying quickly rushed over to one another and hugged. "Shirabe!"

"Kiri-chan!" The other girl, who I guess is named Shirabe, replied. After a brief moment, the two stopped hugging and turned to us. "Thank you for the save."

"Don't mention it." I say as myself and Rom revert out of our HDD forms, which came as a shock to the two strangers. "You two were just lucky that my sister and I were out here when we were."

"DESS?!" The girl I saved gasped. "You have a Symphogear, too?!"

"A Sympho-what?" Rom asked. "I've never heard of something like that before. Have you, Ram?"

"Yeah no, that's a new thing to me too." I answer. "Is that like another form of Hard-Drive Divinity? Are you CPUs?"

"'CPUs'?" The girl named Shirabe asked. "I think it might be better if we start from the beginning. Kiri-chan?"

"Dess." The other girl, who Shirabe calls "Kiri-chan" nodded. "Heya! My name's Kirika Akatsuki, and this is my best friend Shirabe Tsukuyomi. We're Wielders of special relic weapons known as 'Symphogears' which allow us to fight off threats to our world dess."

"Nice to meet you!" Rom replied.

"Well, I guess it's our turn to introduce ourselves then." I say. "My name's Ram, and this is my twin sister, Rom. We're CPU Candidates of the nation of Lowee. Those forms you saw us in earlier were our HDD, or Hard-Drive Divinity, forms."

"So you're like goddesses, dess?" Kirika asked, which Rom and I nodded as an answer to. "So cool..."

"Sorry to change the topic so suddenly, but what exactly does a 'Symphogear' do?" Rom asked. "You say it allows you to fight, but you're not carrying any weapons."

"Should we show them, Shirabe?" Kirika asked her friend. "I mean, our LiNKER should still be in effect long enough to show them for a few seconds, right?"

"And even if it's not, it wouldn't hurt to show them for that long." Shirabe said, pulling out a red gemstone on a necklace. "Let's do it."

"Various Shul Shagana tron"
"Zeios Igalima raizen tron"

After singing a short chant, Kirika and Shirabe were suddenly engulfed in pink and green lights. Once the light faded away, they were wearing new clothes that looked kind of like the bodysuits that came with ours and Blanc's HDD forms. "Those little stones around your necks turn into this? Awesome!" I say. "Does that mean you two are CPUs, too?"

"Eh? Nonono." Kirika said. "We're not any kind of goddesses, just your average, everyday mortals with powerful weapons dess."

Huh... So their weapons just happen to act like our HDDs do then? I mean, it's cool and all, but it's also strange... "I have another question, though." Shirabe said. "You called this place 'Lowee', correct?"

"That's right!" I answer.

"That must mean we're in another dimension, then." Shirabe thought aloud.

Suddenly, a door from inside the basilicom bursted open. "Alright! What're you little shits doing this time?" Blanc shouted in her iconic angry tone. "Is it that hard to ask for some peace and quiet while I wo-" Big sis noticed Shirabe and Kirika, who were more intrigued by Blanc than surprised by her fury, which is surprising considering it usually scares the crap out of newbies.

"She's kinda reminds me of Chris-Senpai in a way." I hear Kirika whisper to Shirabe, who nodded in agreement. "If not only a little more... y'know?" She gestured to her chest as she said this, which I could already tell wasn't going to end well...

"You have three seconds to tell me what you're doing here before you get beaten to a pulp..." Blanc said as she brought out her hammer threateningly. "Three."

"I-I didn't mean it like that!" Kirika said. "It's just, you and our Senpai act very similar and I..."

"Two." Blanc brought her hammer over her shoulder, ready to attack as her eye turned a bright red.

"W-We didn't mean to intrude!" Shirabe said, taking over for Kirika. "You see, we were fighting this Alchemist in a witch costume and then we were sent here!"

Blanc stopped counting and lowered her hammer. "An Alchemist in a Witch costume?" She asked. "Tell me, did this 'Alchemist' have purple skin?"

"How did you know, dess?!" Kirika asked.

Blanc scoffed. "So, Arfoire's back, huh?" She said, which made Rom and I gasp hearing that name again. "How many times do we have to fight that bitch before she gets the message to piss off?"

"Have you fought this woman before?" Shirabe asked.

"'Fought' is one hell of an understatement with that bitch." Blanc said.

"But, why would she attack someone that has nothing to do with us?" I ask.

"I don't know... But it's clear to see that this isn't just a Lowee problem, or a Gamindustri problem." Blanc answered, before she transformed into White Heart. "Can you two fly?"

"Well... Not without a lot of phonic gain, no." Shirabe answered.

White Heart sighed. "Of course you can't... Rom, Ram, carry them. We're going to Planeptune."

"Yes, big sis!" Rom and I say together as we transform back into our own HDD forms, quickly picking up both of the girls that we had saved moments ago.

"Wait! Where are we going, dess?!" Kirika asked.

"No need to worry, Kirika." I say to the panicking girl. "We're going to meet up with some people who might be able to help us get you home, so make sure to hold on tight."

"Okay..." Kirika said. "I just hope these people you're talking about are able to help us find our friends, too dess..."

With that said, we took off for Planeptune to meet up with Neptune and Nepgear. I just hope that they've been able to find any of Kirika and Shirabe's friends, because I can already tell by the worried look on Kirika's face that knowing their friends are alive is exactly what she and Shirabe need right now...

?

Ugh... My head... What happened? The last thing I can remember was fighting that strange woman and...! "The others!" I shout as I shot upright in my bed.

Wait, why am I in a bed? As a matter of fact, where am I? I don't recall anywhere at Headquarters looking like... a rich Otaku's dream house? Perhaps, during the battle, I was knocked out and ended up crashing next to this place. Whoever lives here must've found me and brought me inside so I could rest. Well, seeing that I'm still wearing the clothes I put on this morning and I'm not tied up or in chains, this person clearly had no ill will for me. I'll have to thank them when I find them.

Suddenly, I heard the click of a doorknob being turned, which could only mean that my savior's come back to check in on me. Once the door opened, I'm met by a woman with long blonde hair wearing a green and peach-colored dress. "Ah, you're finally awake!" She said with a sigh of relief. "How are you feeling?"

"I'm Fine." I answer. "If you don't mind me asking, where are we?"

"We're currently at the Leanbox Basilicom." The woman stated. "I was on a personal errand when I saw you fall from the sky. You were unconscious and had some serious bruises, so I brought you home with me so that you could be properly taken care of."

I got out of bed as she said this, and that's when I noticed the bandages on my arms and legs. "I see. Thank you for the aid, Ms.?"

"My name is Vert, CPU of Leanbox, also known as Green Heart, but you can just call me Vert if you would prefer." Vert said, reaching out her hand for a handshake. "It's a pleasure to make your acquaintance."

CPU of Leanbox? I guess she must be some form of royalty, then. "Likewise, Lady Vert." I say as I return the handshake. "I am Maria Cadenzavna Eve of the Japanese organization of S.O.N.G."

"'S.O.N.G.'?" Vert asked. "I don't believe I've heard of such an organization before, or of this 'Japan' that you speak of."

"With all due respect, this is the first time I'm hearing of a nation known as 'Leanbox', myself." I replied. "Which must mean that Alchemist must've sent us to an alternate dimension..."

"'Alchemist'?"

"Allow me to explain..."

"...And then I woke up in your room." I told Vert everything I could remember from the battle we had with the strange Alchemist, including how said Alchemist looked, which seemed to pique Vert's interest. "Judging by your reaction, I take it you and this Alchemist have some history?"

"...You could say that." Vert cryptically answered. "Needless to say, it would appear that we have a common enemy at play, if this 'Alchemist' you described is in fact the same person I believe it to be. Regardless, it would be best to alert the other CPUs about this information you've shared with me, as well as having them be on the lookout for your friends so that we may be able to locate them as soon as possible."

"Right. Let's get go-!" I tried to stand and walk out of the room with Vert, but my legs suddenly buckled in on themselves. Thankfully, Vert was able to catch me before I fell to the ground. "Thank you for that."

"Like I said, you had some serious bruises and they need time to heal." She restated. "You're lucky that your legs aren't broken, all things considered."

"Well, I can't just sit idly by and do nothing while my friends are probably lost out there!" I retort.

Vert began to think, before looking back at me. "I may have a solution to that problem." Suddenly, Vert became engulfed in a pillar of light. Seconds later, Vert emerged from the pillar looking like an entirely different person. Her blonde hair was now a bright shade of green and kept in a ponytail, and her dress was now replaced with that of a white bodysuit like that of a Symphogear's, the only difference being just how much more skin was showing on her's. "That is, if you're willing to do it..."

I was hesitant to answer, but at this point, considering what I've gone through in life, whatever she's planning is worth humoring. "I'm listening..."

"Well, I can't say that I expected this was how my day would go." I say as Vert bridal carried me down the halls of her home until we reached the balcony of her Basilicom. However, it did finally give me a chance to see the nation of Leanbox firsthand. "So, this is Leanbox? It reminds me of Tokyo from my dimension, if not that of a more futuristic version of it."

"Is that so?" Vert asked. "Well, in that case, I would very much like to visit this 'Tokyo' that you speak of sometime, should the opportunity arise."

"And should the opportunity arise, I would like to look around Leanbox while I am in this dimension." I reply. "I'm sure my sister would love to have a souvenir from a place like this."

"Then I'll be sure to show you around before you leave for your world." Vert said. "But first, we should hurry and meet up with the others. Are you ready?"

I wrap my arms around Vert so that I am less likely to fall. "Ready."

"Be sure to hold on tight!" With that, Vert takes off into the skies, flying a lot faster than I assumed she would, but flying all the same.

"Don't worry, everyone. I'm coming to find you."

A/N: And with that, we end the one-shot!

I decided to do one last part for this crossover idea because I didn't want to leave the FIS trio, the Lowee CPUs, or Vert out of the fun.

However, This and the other two parts, when/if I ever get around to making a whole fic out of this, will be slightly altered from the versions shown in this trilogy of one-shots. Well, except for the Tsubasa and S.O.N.G. parts, those will be still pretty close to how they were in One-shot #2.

Regardless, thank you for reading this one-shot. I shall see you all in the next one!