"Uh, could you explain that one more time please? I don't think I got the whole gist of it." Hibiki says as she awkwardly smiles at the person sitting across from her. The two sit outside an empty cafe on a bright, sunny day. Across from her stood a young man dressed in a black and yellow hoodie with an exasperated expression on his face. This had marked the 5th time that he had to go over his unique disposition, and it he wasn't exactly comfortable with reiterating any of the more confidential details. That, and learning that he was currently in a parallel world where adolescent girls fought savage monsters through the power of song and dance was surprising to say the least. To say that the man was bewildered would be putting it lightly.

"Alright, alright! But this is the last time I'll repeat myself. After this, you'll have to go off of memory, got it?" the young man replied. "Okay, so long story short, I'm the current president of Hidden Intelligence, one of the world's leading tech companies. You got that?"

Hibiki, now with a notepad and pencil in hand, began furiously scribbling words down as she shook her head in understanding. "Yep, that's right!".

"And that I fight against dangerous AI-powered robots that have been hijacked by even more dangerous terrorists?" the young man added. "Uh-huh!" Hibiki echoed as she scribbled down more notes.

"And the fact that I used to be a world famous comedian whose world renowned for his sharp wit and his extensive worldliness!?" the young man says excitedly.

"Well, I dunno about that last part…"

Letting out an awkward laugh, Hibiki cleared her throat, clearly wanting to change the topic. "Well, Aruto-san, there was something I did want to ask you."

"Oh? What is it?" Aruto asked.

"What exactly were you doing before you got here?"

"Hmm...well I was sitting in my office, forced to make one of the most critical decisions I've ever had to endure as Hiden's president. One that could alter the very course of my career..."

15 Minutes Earlier - Hidden Intelligence Headquarters

"Izuuuuuuuuuu!" Aruto whined as he called for his robotic secretary from his desk. The young CEO looked like he barely got any form of sleep as his clear pink circles formed under his eyes. The CEO also had his face buried into his desk as well, with the Jump progise key and a mysterious green key labeled with a "Warp" ability left towards his right.

"Yes, Aruto-sama?" the Humagear asked with a neutral expression.

"I'm hunnnnnnnnnnnnngry. Do you know any restaurants nearby where I can grab something real quick? Like a doughnut? Or a burger? Or both?" the young man replied wearily.

"Aruto-sama, I believe that both options only provide you with carbohydrates and little protein to start your day efficiently." Izu commented."I recommend you try this."

"But I don't wannnnnnnnnnna!" Aruto whines back.

Without warning, Izu slams a thick plate of beef cutlets, mushrooms, and white rice.

"Eh?." Aruto moans. "What's this supposed to be?"

"That would be beef stroganoff Aruto-sama. It usually consists of beef strips served with mushrooms, onions, and sour cream sauce, but can also be served with rice with parsley here in Japan."

"Didja get that from Wikipedia or sumthin?" Aruto says half-dazed.

"Why yes Aruto-sama, the article states that-"

"Ah! Well would you look at the time!" Aruto shouted as he raised a green progrise key in the air. "This chat has been fun Izu, but I think I'll be heading out for now. Hmm...wonder what this warp ability does. Well, only one way to find out!" Aruto excitedly put on his Zero-One driver and pressed the key close to the belt. "AUTHORIZE." the belt announced as green lightning cackled around the CEO.

"Henshin!" Aruto shouted as he slammed the key into the left side of the belt. "PROGRISE! GJALLARHORN WARP!" the belt cried back as a green portal appeared in front of Aruto, still strangely in his normal clothing. "Well, smell you later Izu!" Aruto said as he lethargically forced himself into the portal.

"That progrise key wasn't in our records before…" Izu quietly muttered before the portal closed.

Present -

"And that's how I got here." Aruto said.

As if on cue, Hibiki's phone buzzed in her pocket, saving her from having to hear anymore of the CEO's abominable puns. "H-hello!" Hibiki said as she answered her phone.

"This is Genjuro, I need you to return to headquarters immediately. It seems we have more...interesting visitors on our end." the commander of SONG said wearily.

"Yes Master!" Hibiki replied promptly. "It looks like we'll to continue our conversation at headquarters Aruto-san."

SONG Headquarters

"Not that can't be it! It just can't be!" Sento exclaims as he walks alongside Elfnein inside one of the buildings many hallways.

"Unfortunately Sento-san, it looks like the Gjallarhorn might be the reason you've been transported into this dimension." Elfnein pleaded insistently with the genius physicist. "I know this is a lot to take in at once, but I'm afraid that you'll be stuck here until we figure out a way to send you back home."

"Huh? That isn't what I'm concerned about Elfnein-san." Sento says as he raises an eyebrow.

"Really? Then what-"

"I've seen a lot of things as a Kamen Rider Elfnein. I have colleagues that get their abilities from game cartridges, mystical artifacts, and whatever Gentarou thinks "cosmic energy" is supposed to be." Sento pauses before continuing. "But you're telling me that instead of being dragged here by a rift in spacetime, or Zi-O's time magazine, or another fantastical miracle of human engineering, you're telling that it was alchemy that brought me here!?"

"Um...yes?" Elfnein weakly muttered before hearing something explode in one of the nearby equipment rooms. Inside, the two see none other than Tokiwa Sougo kneeling on the floor and trying to wipe some soot off his pants. Woz, looking as charismatic as ever, stands by his side with a book tucked firmly in his right hand.

"Rejoice!" Woz yells as he addresses the two geniuses. "He is the one to inherit all rider powers, the one who chronicles the past and overlooks the future! And more importantly…" Woz pauses as he drags Sougo to his feet and gestures toward him with his left hand. "He is the one who will craft the best Beef Stroganoff known to man! And his name is Tokiwa Sougo, Kamen Rider Zi-O!".

"Woz," Sougo says as he catches his breath. "All I wanted was to make something nice for Geiz and Tsukoyomi. Was all of this really necessary-"

"Of course!" Woz booms as he turns toward his overlord. "A dish cooked by the true king of Kamen Riders must be cooked to perfection! Anything less would forever sully the legacy of you, no, the entire Heisei era even!

"Please help me." Sougo deadpans as he turns to Sento and Elfnein.

Just then, a whole host of people flooded into the room. Hojo Emu, Takeru Tenkuji, Kisaragi Gentarou and Kenzaki Kazuma otherwise known as Kamen Riders Ex-Aid, Ghost, Fourze and Blade were accompanied by Symphogear users Kirika, Shirabe, Chris, and Tsubasa "Um, guys could you keep it down in here?" Emu asked. "I was just showing Shirabe-san some of the new footage from Taddle Fantasy Versus XIII."

"And we were just getting to the good part…" Shirabe pouted.

"Yeah!" Gentarou shouted with enthusiasm. "Me and Chirs-chan were in the middle of an intense game of Go Fish too! But my spirit remains indomitable!

"Haven't you lost thirteen times in a row!?" Chris argues back. "I guess dummies aren't limited to one dimension after all."

"Hopefully, Tachibana-san will make it here in time." Tsubasa comments.

"What!?" Tachibana-san is here!? Now!?" Kenzaki asks excitedly.

"Uh, Kazuma-san, I don't think-"

"I'M COMING TACHIBANA-SAN!" Kenzaki yells as he dashes out towards the halls, drawing many confused looks from the SONG operatives in the hallways.

"And there he goes." Tsubasa, as well as the other riders standing in the room let out a heavy sigh. Sougo's beef stroganoff problem was one thing, but Kenzaki's deliriousness and horrible lack of common sense was a completely different can of worms.

"So...anyone wanna get a bite to eat? All this crazy stuff happening at once is making me hungry!" Kirika said enthusiastically as the Symphogear Wielders and Kamen Riders all share a collective chuckle.

"I guess you could say that...you're all starving for my company!" Aruto shouted as he magically burst into the room with Hibiki in tow. Whatever momentary harmony that was achieved a few seconds earlier is replaced with awkward silence.

"Um...who are you?" Takeru asks to break the silence.