UfGaster was still out to catch up to Frisk, papyrus was asleep, so was everyone else. It was 3:45 in the morning. Chia and Red were still sharing the same bed since she had no where else to sleep. She would sleep on the couch, but she didn't want to be rude, just be there if someone wanted to watch TV or something. They made sure to sleep away from each other to give each other space, not get too close.

Chia woke up, panted a bit, looking at her surroundings, realized she was still in the bedroom. It was just a nightmare. She sat up, holding her chest, trying to let her heart settle down. Her heart was in a bit of pain, her throat was dry. Red was still asleep, snoring loudly. Chia got out of bed, was in boxer shorts, a black t shirt that was Red's. She didn't have a lot of clothes, her clothes were on the surface, paps, red let her borrow clothes. She went down stairs, went to the kitchen for a cup of water.

Red woke up for a late night mustard drink. He sat up in bed, opened his mini fridge with his magic, pulled out a mustard bottle, noticed chia wasn't there. He figured she just needed to use the bathroom, so didn't question it, drinking from the bottle.

Chia finished up her water cup, was headed back upstairs, she stopped, thought she heard something. She stayed still, listened. Nothing. She continued to walk. The sound came back. It sounded like…buzzing..before she even turned around, blue strings suddenly grabbed her by the arm, started to pull her into a portal, making her scream out.

Red, papyrus both threw open their bedroom doors, summoned thier magic bones once they ran to the scene

Chia was holding tightly holding onto the stair railing with her free hand, being pulled in. Glitched up laughing came out.

Red: What the hell!?

Papyrus cut the strings with one of the bones, pulled her close to his chest to protect her. He looked at red, gave chia to him

Papyrus: Sans, get her to your room with Buttercup, lock the door!

Red quickly took Chia, teleported, came back after he put her down, locked the door.

A black sans figure came out, Error kept appearing around him.

Papyrus: Another Sans! Who the hell are you!?

Error: Oh I'm defiantly a Sans. But not like any you would know..

He levered himself up with his strings, laughed as he attacked. Papyrus and Red fought hard. Error was quicker than them, this was seriously making the bros exaushted. But they continued to do their best, stand their ground.

Red: What do you want with our human!?

Error: Heh heh..you don't notice it?..normally you would kill a human on the spot right when you saw it, but when that one fell, you two went soft on it, gave her a job, even let her live with you.

Red: So!? She can't fight, isn't very good at defending herself! It wouldn't be a fair fight!

Error: since when was Underfell "fair"?

Papyrus: its none of your damn business anyway! It was our choice! She's done no harm!

Error: but you never questioned why you felt so different when sparing her?..and have you noticed that the other aus don't have another human besides a Chara, Frisk?

Red and Papyrus listened, but would not back down.

Papyrus: That's bullshit. We have met other versions of ourselves, we are not the only underfell to have a human that is not frisk or chara.

Error: Glitches. Simple mistake. That human was not supposed to be here. It was a mistake. And it can't be fixed. It was a glitch. It was just supposed to be Frisk to fall, not that one as well.

Red: hold on, what do you mean by that!?

Error: Frisks tend to reset a lot. They get..curious of what will happen, all the outcomes. The more they do it, in rare cases have rather interesting results. Somehow when your Frisk reset, it took time a year back somehow, put in another entrance to Underfell for a minute, and just at that minute, she happend to fall. It wasn't supposed to happen.

Both of the brothers were silent. They honestly had no idea how to feel about this, what to say about that.

Red:..that doesn't explain why you're after her..

Error: Simple! Since this one isn't either a Frisk or Chara, we have been given more than enough evidence that this one can actually be trusted, she's my new puppet!

Papyrus tackled Error down the stairs. Big mistake. It just pissed Error off. It made his attacks even quicker, more violent. Red jumped in, him and paps fought hard. But they were caught off guard, Error managed to capture Chia again, held her to him with a arm. Chia squirmed hard. As the portal was about to close, Red shot a bone at Error, which was also a big mistake. It made Error heavily glitch out, mess up on his portals, Chia ended up getting sent to another world, she let out a scream as she disappeared, Red tried to grab her, but it was too late.

Chia was sent to another version of Underfell. This one was a bit different from hers. She landed in the river, but it was moving really fast, she couldn't grab onto anything no matter how hard she tried. There was a huge Sans that looked like Red but his coat was different, he looked more intimidating, had a gray shirt with a black skull on it. Beside him was a human girl, blond hair, brown leggings, a red t shirt. Chia didn't get a good look at them, still being pulled by the river. She ended up getting pulled underwater, hit her head really hard, getting knocked out, just then, the skeleton's huge hand entered the water, grabbed her by the arm, pulled her out of the water.

(This version of red belongs to Kimiwillsinforever on tumblr, to separate hers and mine, I just simply call him ufsans)

Ufsans: Welp. The kid is dead. *shrug*

The human girl was named Kimberly. Her and ufsans were husband and wife. They were on a date, that happened. She went over

Kimberly: She's not dead, Sans, she needs CPR, water is stuck in her throat

UfSans: *drops her* that ain't gonna be me, doll. Knock yourself out though.

UfSans was a lot meaner than Red, ruder. Kimberly was nice, loved him for him. She performed CPR, the water came out of Chia, but she was still out cold.

Ufsans: Ew. *moves back* don't get that throat water on my good shoes now.

Kimberly:..hmm..still out…it must be a head injury..we should take her to Alphys, she can figure it out, know what to do.

Ufsans: Damn it. I was enjoying us time too. Stupid fucking random drowning human.

Kimblery: We can cuddle, watch a movie at home to make up for it.

Ufsans: *smiles* sweet. Can I pick the movie?

She nodded, smiling still

Ufsans: Yes! You're the best, babe!

They left, went to Alphys

Back in the original Underfell, Error was gone, but now that meant Chia was too, they had no idea what world or au she ended up in. Red was pacing around, swearing to himself. He didn't mean for that to happen.

Papyrus: Sans! Do you realize what the hell you did!?

Red: FuckFuckFuckFuckFuckFuckFuck-

Papyrus: *grabs him by the sweater, slaps him* Get a grip will you!? This is your fault!

Red: You think I don't know that, boss!? We can't just leave her there! Buttercup will be devastated!

Papyrus: Will you quit whining already!? Call everyone from the other universes you met! Arrange a search party or some shit!

Red nodded, both brothers dialed, called anyone they met out of their au. They all said they'd look out for her. Red threw his sweater, coat on, papyrus put his armor on. They had Grillby baby sit Buttercup.

Frisk heard the news, ran over to Red, wanting to help search. He just snarled at them, gave them a small push.

Red: Get away from me, damn brat.

Frisk frowned, hand signed, Red gave them a cold look

Red: That Glitch Sans told us all about your resets. Is our lives just a fucking game to you!? Do you get some sick thrill out of this!? I trusted you, kid!

Frisk looked hurt, shocked. They lowered their head, tried to apologize

Red: No you're fucking not. If we were ever friends in the past time lines, you would have just let us had our happy ending, let us get the hell out of this shit hole…*looks off*..you're a fucking sadist freak…I don't want to see you, talk to you ever again.

Frisk reached for his arm, but he began to walk off to head to Alphys.

Red: Don't touch me..just..leave me alone..

Frisk stood there, silent, hurt. But they knew he was right. They had no excuse for their actions. The guilt was painful.

Red found Alphys, told her what happened. Alphys gave him a watch, all he had to do was press a button, a portal to another world would open for him.

Red: You sure this will work, nerd?

Alphys: of course! When have I ever been wrong!? Never that's when!

Red sighed. He hesitated but pressed the button, a portal opened. He inhaled, walked through. The portal closed behind him.

Back in the other Underfell, Chia woke up, was on the couch. She sat up, rubbing the back of her head, looking around. She thought she was in her Underfell, it all looked the same so far.

Chia:..was it a dream?..huh..

She got up, went upstairs to check on Buttercup, only to walk in…Kimiberly and UfSans were having intercourse.

Chia: *yelps* Sorry! Sorry!

UfSans: -Hey! Get outta here! *snarls* Can't a guy be with his damn wife!?

Kimberly was just watching all of this go down, she grabbed ufsans' slipper, threw it at Chia.

Kimberly: We'll talk in 5, let us finish! Shoo Shoo!

Chia: SorrySorrySorry
She continued to say that as she quickly got out, closed the door.

Chia: Fuck. That wasn't a dream. The Sans I know is not that tall. And I'm the only living human in my world besides Frisk in the underground…*heart hurts, panicking a bit* oh no…I don't know what au I'm in..! I don't have any way of contacting my sans and papyrus..! What about Buttercup!?..oh shit, oh no, no, no!

She went down stairs, pacing around the couch, sweating, pale, really scared, having no idea what to do. She would go out, look, but she was still only in boxer shorts, a t shirt, no shoes. It was way too cold out. Plus, how would she open a portal?

Kimberly, ufsans came downstairs, to find Chia in tears. Kimberly went to her, thought she hurt her feelings a bit ago.

Kimberly: hey, hey, don't cry. I'm sorry. Look, I just really don't like time with my lump of grump interrupted.

Chia: its not you..I don't know where I am..how to leave..anything..I'm stuck here..
She let out a sob by accident, hated crying in front of people

Chia told them what all happened. Ufsans grumbled.

Ufsans: I suppose I could talk to the bitchy lizard. Maybe she can do something about it.

Kimberly nodded

Chia: you sure? *wipes eyes with back hand*

Kimberly: absolutely. I don't mind the help.

Ufsans: no, I just want the human outta here.

Kimberly giggled, hugged him, loved his rude and grump. Chia was silent, thinking about everyone in her world.

Ufsans left. He came back with Alphys, she gave her own watch to open portals. Chia thanked everyone, walked through the portal.