Undertale: Fay Route

"I'm Fay. Nice ta meecha~"

"this isn't a game Fairy... who are you?"

"Pfft! Could'a fooled me... But I told you. I'm Fay. You're not being very specific... Who am I? According to who? You? Frisk? Papyrus? Toby Fox? I am simply what other people view me as. While it's true that I am my own person, it's how other people see me that I am what I am. Experiences make up the person... So I'll tell you again, be more specific."

"tsk, i don't appreciate the attitude. don't make this more difficult than it already is Fairy. just answer the damned question."

"Ugh, fine. I am Fay. To Frisk, I am an older sister. A protector and caregiver. A friend that is always there for them. To Papyrus, I am the "tall human". I am caring, fun, but also very strange. And while he won't admit it just yet, I am also his friend. That leaves you. Who do you see me as Sans? But let me warn you, I will be exactly what you think I am. So, tell me, who am I?"

Sans' smile seemed stressed as he listened to Fay talk. What was this girl even saying? Did she even realize how strange she sounded? It made perfect sense, but no child should think like that. Let alone be able to word those thoughts so easily while holding a straight face. She couldn't be older than thirteen! A chill ran up Sans' spine when Fay stopped talking. She had left the decision up to him. That tricky little brat just made it so Sans' was responsible for anything she does from this point on. Grinding his teeth, Sans kept silent. That was the only real answer he could give. You can't outright tell someone you think of them as an enemy. And if he said she was okay, then if she did anything bad later, he would blame himself. Narrowing his eyes, Sans took a breath and leaned back a bit. Fay gave him an understanding smile and kept quiet as well.

"So I think we can both agree there is no real answer to that question. No safe one at least. So let's have you ask something else."

Sans' clenched his hands and jaw but nodded in agreement. She obviously wasn't an idiot, even if she acted like it. Fay scooted to one side of the couch and silently offered the other end for Sans. Being the lazybones he is, he took the seat but kept his whole body facing Fay. She however relaxed a bit and messed with the book in her lap.

"fine... how did you clean the kitchen so fast?"

"Aw, you couldn't start with an easy one could you? Hmm..."

Fay sighed and pulled her legs to her chest and rest her chin on her knees. Looking at Sans through the corner of her eye, Fay quickly continued.

"You already know about determination and time travel. I'm sure you've come to the conclusion by now that Frisk and I are involved with that."

"you know about that stuff huh? well...what are ya getting at?"

"Frisk and I are able to control and alter time... Frisk is able to go back in time. Even to the point that they can start a new timeline..."

"So you can reset time?"

"That... and other things..."

"what 'other things'?"

"Um... I can also pause time-"

"what?! how... is that what you did back there?"

"Y-yeah... I figured that a messy kitchen was something you guys shouldn't have to worry about. There was enough happening as it was. Plus, I owed you for letting Frisk stay here for the night..."

"so... you just paused time? look, kid, i appreciate the thought. but you shouldn't go messing with the timeline..."

"Pausing doesn't cause any damage. There is no strain on a dimension that is paused. It can't create alternate timelines either... So it's safe-"

"you don't know that. not for sure. kid, we probably can't even comprehend what pausing time does to the universe..."

Fay opened her mouth as if to argue, but thought better of it. Sans wouldn't believe her anyway. Closing her mouth again, Fay kept silent for a moment before speaking again.

"So I guess that me fast forwarding will be heavily frowned upon then..."

"wha-you can do that?! heh, kid. yur killing me here. are you telling me you can actually time travel? and you seem to retain all your knowledge from past timelines... kid... what have you done?"

"What do you mean? And I guess so yeah, I can travel through time... But we're kinda in a closed time loop here... So I don't want to do anything drastic..."

Sans inhaled, closed his eyes, and rubbed the spot between his eye sockets. Letting out his breath slowly in means to calm himself down, Sans looked back at Fay.

"How many times?"

"How many times what?"

"How many times have you messed with time?"

"I... I only paused that one time..."

"dammit Fairy... i meant throughout all the different timelines..."

"Like I said. I only paused. That's all I've really had the chance to do..."

"that's bull. then how do you even know you can fast forward time? how do you know everything? with all the resets that you can Frisk made there's no way you haven't done anything else-"

"Um... Actually... This is my first time here. My first run through so to speak. I wasn't here for any of the other timelines. This is literally my first time meeting you."

"that... that makes no sense... you even said this was a closed time loop... so how? how did you get here? how do you seem to know everything already?"

"... Because I'm from another dimension..."

This seemed to be the last thing Sans was expecting to hear. The white lights in his eyes went out and his eternal smile dropped. He was shaking now, though whether it was from fear or anger, Fay couldn't tell. Curling into herself a little more, Fay kept silent as Sans took in this information. The two sat there silently for the longest time. Sans stopped shaking and was relatively back to normal, but still kept quiet. The skeleton was hunched over and holding his head in his hands. Knowing better, Fay kept silent and even refrained from moving. Without shifting from his spot, Sans started to talk again.

"if this is a joke, then kid let me tell you. it ain't funny..."

"I'm not joking... There's a reason you don't have any memories of me... We've never met until now... But when I jumped to this dimension, I ended up watching every single timeline Frisk created. I've seen everything, I know everything. I even know things Frisk doesn't yet..."

"heh, then prove it..."

"Even if I told you about my dimension, you wouldn't believe me... So I'll stick with proving the second point. King Asgore so far has collected six human souls. You only need one more to break the barrier to go back to the surface. The king and queen once had a child, who found a fallen human. They took the child in as their own. They were happy. But then both children died in one night. They had managed to slip past the barrier but were attacked and killed by humans. Asgore became furious and deemed that any human that came underground would be killed for their soul so they could break the barrier and take over the surface. The queen disagreed and left Asgore..."

"heh, nice try kiddo, but you could have learned all that from the library and simply talking to the people in town..."

"I'm not done... While waiting from more humans to fall, the king ordered the royal scientist to conduct experiments. Find other ways to break the barrier, or make monsters stronger. In the end, they found out about 'determination'. The scientist started injecting monsters with determination. But their bodies couldn't handle it. Those monsters started falling... In an attempt to fix them, the scientist injected more into them. But this had disastrous effects. The monsters started melting, fusing with each other. They became Amalgamates. Poor Alphys... She's still taking care of them... There's also-"

"that's enough Fairy... i-i believe you... oh god..."

Fay watched as Sans ran his hands over his face. She could feel the stress rolling off of him. Turning her head to face him, Fay frowned.

"Sorry..."

"it...it's fine? can't exactly make you forget... hey Fairy? i need you to promise you won't mess with time anymore..."

"I can't do that... But I will refrain from using time frivolously if that helps. If something happens, something bad, I won't hesitate to go back and fix it... But I promise to not 'play' with time..."

Sans raised a brow at Fay's promise. He wasn't pleased with her answer, but it was the best he was going to get from the girl. At least she wouldn't mess with time for no good reason. Sans leans back in his seat and stretches out his legs in front of him.

"So... I think that covers everything..."

"not so fast Fairy... why aren't you eating? and you don't even look tired. weren't you carrying the kid around for days now? without eating? that isn't normal..."

"... I'd rather not talk about it..."

"i'm not giving you a choice Fairy..."

Fay was silent a moment before looking to Sans with sad eyes.

"You can't tell Frisk..."

Sans raised a brow, but nodded in agreement.

"I'm anorexic in a sense... And I have insomnia..."

"okay, i know what insomnia is. but what's anorexic mean?"

"Um... normal anorexia is a mental disease that branches off of depression and causes humans to think they are too fat so they stop eating. It's amazing what a simple sense of inferiority can do... I'm a little different... I know I'm too skinny... But... I hate eating. It physically hurts and makes me sick. I would just end up throwing it away, so it would be a waste of food... I know it's stupid... But it's not exactly something I can just stop... Happy now? Are we done here?"

"...uh... wow... that's kinda... wow... sorry. i didn't know..."

"Yeah. So let's stop talking about it already. It's late... You should sleep... Tomorrow is gonna be hectic..."

Sans gives Fay a worried glance but nods. With his shit eating grin back in place Sans snuggles into the couch. This causes Fay to look at him questioningly. He laughed but didn't bother looking at Fay as he spoke.

"You said to sleep. So I'm going to sleep."

"What? Here? Your bedroom is right over there!"

"Eh... Too far away... I'm fine here..."

"Seriously?"

"..'m tired..."

"Heh, lazy ass..."

"ya know it..."

Sans managed to give Fay a sleepy wink before passing out. Laughing silently, Fay grabbed the magic blanket from out of her inventory and draped it over the sleeping skeleton. Leaving the couch, Fay sat herself against the nearest wall and started to read again. She didn't get very far though when a certain little human sped down the stairs and ran over to her. Frisk only gave Fay enough time to put her book to the side before launching into her arms. They were crying again. Pulling the child into her lap, Fay hugged Frisk and waited for them to calm down. When their tears subsided, Fay pulled back and looked at Frisk with worry.

"What's wrong? What happened?"

"... Nightmare."

"Ah. It's okay. It's over now and you're safe. I'm here for you. So if your fears come back, I'll kick their ass... I won't let anyone hurt you, and I won't let you hurt anyone... You're safe now. I've got you."

Frisk buried their face into Fay's shoulder and took a shaky breath before relaxing a bit. The child pulled back and started to climb off of Fay, but she pulled them back into her lap.

"Heh, nope! You gotta stay here now. So, since the others are asleep, do you have any questions? I know you have some."

Frisk made a cute face while they thought for a moment. Finally seeming to know where to start, Frisk smiled up at Fay.

"What are you Fay?"

"Heh, now that's the right question. There isn't really a word for what I am. But the closest thing would probably be 'god'."

Frisk's eyes widened and their mouth hung open. Shaking their head to regain themself, Frisk looked at Fay skeptically.

"You're a god?"

"Heh, yep! Though I really hate that title... I just happened to exist before everything else. You probably don't believe me, but that's fine. I wouldn't believe it either. So just to make things easier, I'm simply Fay. Fay the Fay~ Heh, see what I did there?"

Frisk rolled their eyes but laughed anyway. They didn't really think Fay was a god, but she definitely wasn't human. Or monster. And she did say there wasn't really a word for what she was. She was simply Fay. And honestly, did anything else even really matter? Fay accepted Frisk for who they were and forgave them for what they did. She accepted them for them. So Frisk would do the same. She was still Fay, and she was their friend. Their sister. That was all they needed to know. Smiling up at Fay, Frisk nodded their head and yawned involuntarily. With a giggle, Fay pushed Frisk onto their feet and pointed to Pap's room.

"Back to bed with yee! I'll still be here when you wake up. I promise. Go get some more rest buddy."

Frisk nodded again and went back to bed. Fay smiled to herself and ended up reading again until morning.