Sans looked around at the snow-covered forest and took a deep breath before slowly walking to his sentry station, as he closed his eyes.

"Sans, are you there?" Papyrus called. "I'm worried about you brother."

'Paps, this isn't going to get any easier no matter what I try. I just have to keep telling myself it's for the best and then… well when Chara and I get to the other timeline…' Sans thought before shaking his head. "I'm ok Paps, just my usual lazybones self."

As Sans said that Papyrus walked up to him. "You seemed rather upset this morning and it worries me. You know that if you need to talk about anything I'm right here."

"Paps, you have no idea how glad I am to hear that bro." Sans smiled sadly. "I'm going to start heading back to Snowdin, I think I just need to rest for a while."

"Sans, I swear all you do is…" Papyrus started before noticing Sans' expression. "Actually that sounds like a good idea. I'll go prepare your bed for you Sans."

With those words Papyrus walked off leaving Sans on his own in the snow.

'Papyrus, why do I have to do it?' Sans thought as his eye-sockets started tearing up. "I swear, I'll do whatever I can to make it up to you once this is all over."

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"You think you're so clever." Flowey stated as he popped out of the ground.

"Clever, what do you mean Flowey?" Frisk inquired. 'I'm going to make sure everyone gets out of the Underground safely, and this time that includes you.'

"You managed to play by your own rules and spare the life of a single person. You must feel so special." Flowey replied. "Though, what will you do if you meet a relentless killer? You'll have to fight back, or you'll die."

"There's always another option, I didn't kill mom and I won't kill anyone else either." Frisk stated with determination.

"We'll see how long that attitude of yours lasts." Flowey mentioned with a smirk. "You'll learn how the world works sooner or later, of course if you don't I'll be the inheritor of this world's power. I'm looking forward to that."

As he said that Flowey started to laugh before disappearing back into the ground leaving Frisk alone.

"Flowey, no Asriel. I promise I'll save you." Frisk said before walking out of the Ruins and into the snowy Underground.

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Sans wiped his eyes as he walked towards Snowdin, keeping his goal in mind despite his hatred of it. Soon enough, the first monster approached him, Snowdrake.

"Huh, Sans what are you doing here?" Snowdrake inquired.

"Tibia honest, from one comedian to another…" Sans started as a fight started. "I'm praying that this whole thing is going to be worth it in the end."

Snowdrake looked shocked as a wall of bones silently appeared behind him. "Sans, this is pretty cold of you."

Sans chuckled. "Good one."

Snowdrake smiled slightly hearing that only for the wall of bones to slam into him turning him into dust instantly.

Sans just stared at the pile of dust in front of him as he turned towards the path the human, the path Frisk, had to have taken countless times before him. "I guess there's no going back, not like I would have been able to anyway. I hate making promises, but this is one that I'm keeping no matter what."

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Frisk continued walking down the path before a sound from behind her caused her to turn around only to see nobody as she smiled before continuing along the path flinching slightly as she heard a stick crack in two before pausing at a small gate.

"Human, don't you know how to greet a new pal?" inquired a voice from behind her. "Turn around, and shake my hand."

Frisk had to resist the urge to hug the person standing behind her as she turned and took the offered hand only for a farting sound to echo as the skeleton chuckled.

"I'm sorry." Frisk laughed.

"The old whoopee cushion in the hand trick, it's always funny." the skeleton grinned. "I'm Sans, Sans the Skeleton."

"It's nice to meet you Sans, my name is Frisk. Frisk the Human." Frisk giggled.

"I thought so, you are a human." Sans mentioned. "That's actually pretty funny, I'm actually supposed to be on watch for humans right now."

"On watch, why?" Frisk asked curiously.

"I'm technically supposed to catch any humans I see, but just between you and me I'm way too lazy for that." Sans admitted. "My brother Papyrus on the other hand, he's a human hunting fanatic."

"Isn't that a bad thing though?" Frisk asked. "I don't want to be captured."

Sans just chuckled at that. "Hey, I just had a great idea. Head through this gate right here, my brother made the bars way too wide to stop anybody."

Frisk nodded before walking to Sans' sentry station. "Sans, what's…"

"Hold on a second Frisk, quick hide behind that conveniently shaped lamp." Sans interjected as Frisk looked down to hide her smile as she hid.

"Sans, there you are." stated a taller skeleton. "It's been eight days and you still haven't recalibrated your puzzles."

Frisk just smiled. Papyrus is so great; she thought as the two of them continued talking before Papyrus walked off.

"Ok, you can come out now." Sans mentioned as Frisk walked out from behind the lamp only for Sans to pause. "Huh, is something wrong? My puns not tickle your funny bone?"

Frisk smiled at the pun and shook her head while wiping away tears. "It's not that, it's just… a really good friend made me a promise that I know is making them really sad and I wish they didn't have to keep it."

"Well, I don't normally like making promises but I don't think your friend would want you to be sad." Sans told Frisk. "Besides, even if it would make your friend sad knowing that they were doing something for a friend… that's enough and when you see them again you can thank them for everything."

Frisk nodded before hugging Sans much to his shock. "Thanks, that means a lot."

"Heh, don't mention it Frisk. Actually, do you mind doing me a small favor?" Sans requested as he gently hugged Frisk before they let go. "My brother's been kind of down lately and I think seeing a human would really make his day."

Frisk nodded. "Ok, I can do that."

"Thanks Frisk." Sans smiled before walking off.

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Sans closed his eyes as yet another monster turned to dust at his hands.

Chara's Soul LV 6

I shouldn't be surprised that it's getting harder to increase Chara's LOVE, but still I'm starting to wonder if this is worth it. "No wonder she died so many times, I wouldn't be surprised if she wanted to quit."

"Sans, what are you doing?" asked a voice from behind Sans as he turned to see a dog wearing armor as it held a small dagger. "Wait, where'd you go?"

Doggo, I guess you and the rest of the Royal Guard need to be included in this then, Sans thought as he waved at the dog. "Something wrong?"

"Wrong of course there's something wrong, people keep moving quickly as if they're fighting something. Is there a human here Sans?" Doggo asked while looking around.

"Not exactly, see it's a bit more complicated than that." Sans explained while slowly moving so Doggo could see him. "The short answer is, I'm sorry pal."

"Sorry, what would you have to be sorry for?" Doggo questioned only for a bone to hit him from behind as a fight started. "What the, Sans?"

This is almost worse than Tori, at least she saw what was coming but Doggo… I don't have any choice though, if this plan works then Frisk's timeline will be the last one, and if not… Sans thought as a Gaster Blaster formed behind Doggo. "I guess this is another reason I'll have to hate making promises."

"Another reason you hate making promises, Sans what are you…?" Doggo started to ask only for the Gaster Blaster to hit him sending him crashing to the ground weakly. "Sans, it was you?"

Doggo could only look up desperately trying to find Sans as he stood still and a single bone turned him to dust.

Sans could only stare at the newest pile of dust in front of him before starting to tremble. "So this is what she went through, Frisk… just how much determination did you have to force yourself to go through with all of this even one time? If what you said was true, you were as close to everyone in the Underground as any of us so going through that, it must have been more painful than dying could have ever been."

As he said that Sans took the glowing human soul from under the snow and looked at its LV before sighing and turning to continue his slaughter through Snowdin.

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Frisk continued walking along the snowy path before pausing and turning to see a monster walking up to her as she smiled. Snowdrake, he must want to try some of his ice puns. "Hello."

"Oh hi, it's ice to meet you." Snowdrake replied.

Frisk just smiled and started laughing. "That was pretty funny."

"Laughs, I knew it dad was wrong." Snowdrake smiled. "I am funny."

"Yeah, you really are." Frisk smiled as Snowdrake walked off confidently. "Ok, now Sans and Papyrus should be just up ahead."

As she said that Frisk continued down the path before spotting the two skeletons in the distance.

"So anyway, as I was saying about Undyne." Papyrus started before turning towards Frisk only to immediately turn back to Sans as the two of them started turning back and forth between Frisk and each other only to turn their backs to her. "Oh my god Sans, is that… a human?"

Sans turned back to check. "Actually Paps, I think that's a rock."

"Oh, ok then." Papyrus replied.

"Hey, what's that behind the rock?" Sans inquired.

"Oh my god." Papyrus repeated before turning to Sans. "Is that a human?"

"Yup." Sans answered.

"Wow." Papyrus stated eagerly before clearing his throat. "Attention human, you will soon be captured by I the Great Papyrus. My brother and I have prepared several ingenious puzzles and traps to confound you."

The puzzles are really fun too, Frisk thought with a smile.

"Continue only if you dare, Nyeheheheh." Papyrus laughed before walking off.

"You look like you're expecting to have a really good time with my bro." Sans noted. "You like puzzles that much?"

"Well, yeah, puzzles are really fun." Frisk smiled. "Plus, if they were made by someone as great as him they have to be fun."

Sans just chuckled. "Yeah, you have a point Frisk. Oh, and don't worry. Papyrus isn't dangerous, even if he tries to be."

Frisk nodded at that before continuing through Snowdin.

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It's starting to get kind of tough to find any monsters around here, does that mean I'm finished? Then again I haven't seen the rest of the Royal Guard so they're still our here somewhere, Sans thought as he looked at the dust piles all around him. "That kid, if what she said is true then seeing all this dust must have been… Frisk I guess it's true that humans are a lot stronger than monsters."

Suddenly a second dog in armor approached Sans as it drew a sword and shield.

"This is too much, when it's all said and done I'm just going to have to ask one of them to finish what I started." Sans whispered as he started a fight with the Lesser Dog. "After everything I've done, I just want it to all be over. I hope she'll be there with the others, because Undyne I really need you to do something for this lazybones."

(Frisk has spared Toriel and is preparing to go through Papyrus' puzzles while Sans is killing the monsters in Snowdin in an attempt to raise the LV of Chara's Soul. Next chapter Frisk will continue traveling through Snowdin and Sans will reach the town. As always any reviews or critique is appreciated.)

(Author's Note: In Undertale you can grind monsters in one area which is how Sans is able to kill so many of them so quickly. He's slightly ahead of Frisk but the weight of his actions are quickly catching up to him and slowing him down.)