*US Kiara*

I went to the source of the voice. God damn it. It's so noisy!

"Why is it so noisy here?" I asked as I stepped out of the bushes. They all stared at me. I looked around and saw a double of Sans and me.

"From what universe?" I asked as I raised my eyebrow and folded my arms.

"Undertale." My alternate twin answered as she walked up to me. I nodded as I leaned against a tree. They're the original. Never thought I'll meet them in person.

"Um... What is happening?" Paps interrupted. Right, they don't know. Gaster wouldn't be happy but never mind.

"Let's talk about this somewhere else it's freezing cold out here. How about at your house?" I said lazily. I didn't wait for a reply and teleported. Heh, time for them to know I have magic.

~*****~

*Kiara*

"wait! she has magic?!" US Sans exclaimed which got me confused. She didn't let them know she has magic? Wow, that's why I don't like my Underswap version that much. She keeps so many secrets. Not that I don't have secrets myself.

"yeah... didn't she tell you about it?" Sans asked him. US Sans shook his head.

"No, she likes to be alone most of the time. She doesn't talk that much." US Paps said. US Paps looks really cool. He's like so chill about what's happening.

There was a silence over us after what he said. I decided to break the silence.

"Welp, I'm going first. Bye!" I said quickly and snapped my fingers to teleport. I teleported on the couch. I looked around and saw other me on the other side of the couch.

"What took you so long?" She asked me looking annoyed. I shrugged.

"Nothing."

Soon, they teleported one by one. After everyone's here, we all fell silent again. I swear I could hear a pin drop. We all just looked at each other. US me cleared her throat.

"As you can see, we have the Undertale version of me and Sans." She started. US Paps was going to say something but she raised a hand at him. "And before you asked anything, there are many more versions of you and there are plenty of other universes."

"So this 'Undertale' is an alternate universe?" US Paps asked. I nodded. Well, better help her explain.

"As you heard me say earlier, your universe is called Underswap, where everyone's personalities swap. In our universe, Sans is like Papyrus here." I motioned to US Paps. "While our Papyrus is like Underswap Sans here."

"So what's your universe called?" US Sans asked. He looks so cute. I was about to answer when Sans interrupted.

"our universe is called Undertale. it's the original." He looks at me, his eyes asking if he was correct.

"Right. There are millions of alternate universes in this awfully crowded multiverse." I muttered.

"And before any of you ask, the multiverse is filled with different universes with mirror images of yourselves but with different personalities and lifestyles."

"so you're saying, we are just one of millions of universes out there?" US Sans asked, a look of amusement on his face.

"Yup." US me smirked. "Feeling so small?"

"If what you are saying is true, why are they here?" US Paps said as he motioned to us.

"Right. You still haven't told me why you're here." US me gazed at me.

"Well, we just came from Underfell..." I muttered nervously. I have a bad feeling about this...

US Kiara's eyes widen. "You're traveling through the universes?!"

"Wait! Let me explain first!" I shouted over her voice. The others were looking at me and my alternate twin weirdly. Well, first off, you shouldn't go traveling from one universe to another since it will open up the gap of time and space and there will be an absolutely big problem. Second, we don't even know where the machine takes us, all we know is that it was suppose to bring us to the void and back home.

"The machine malfunctioned and we landed in Underfell. The machine kinda just put us down and it was gone. Same for how we got here. We went to UF Alphys' lab and made the machine again. Then after it was done, we rode it and it took us here. Capiche?" I explained kinda annoyed with the other me.

"So you being here is an accident?" US me asked and I nodded. She seem to have calmed down after the explanation.

"Ah, finally." I said, slouching back down to the couch. "So, where can we stay?"

"You," US me pointed at me, "you're gonna stay at the cave. Anf your Sans is gonna stay in here. He'll sleep in the couch."

Sans shrugged. "fine by me." I nodded.

"So can you take us to your Undyne?" I asked and US me nodded.

"why Undyne?" Sans asked me.

"This is Underswap, bro. Undyne and Alphys are swapped." I explained. He thought for a while before nodding.

"So? Are we going or what?" US me aske both of us annoyed.

"hey, Kiara! can we come?" US Sans asked US me with sparkles on his eyes. "i haven't seen Undyne in a while!"

"Bro, you're practically with her two hours ago." US Paps said with a chuckle.

"Sure, what ever suits you." US me agreed with a smile. "But we're going there the long way. No shortcuts."

"okay!" US Sans shouted with glee. The Sans here looks and acts pretty much a child. I looked at my Sans and he was looking at the other him like 'is this really me?'. I giggled at his expression. This is gonna be fun.