A/N: I do not own Undertale. All rights to the characters, world, the game belongs to Toby Fox; although I wish I owned Sans. only OC is owned by me.

Sans never thought he'd get along with the humans.

Welp, maybe except for the kid.

It had been a while since Frisk had destroyed the barrier and led the monsters back to the Surface. Things seemed to look brighter for the monsters, but what Flowey told Frisk turned out to be true.

Not all humans were nice. And the monsters learnt that the hard way.

Maybe except Undyne. But that's another story.

To be honest, he really couldn't care less. It wasn't something that he didn't expect, anyway. What had he thought of when he first came up to the Surface?

Oh, that's right. He didn't really have any thoughts. He just followed Papyrus.

And Frisk.

And Toriel.

And Asg- the point is, Sans was too much of a lazybones to think about anything related with Surface or humans.

Yes, the sunset was absolutely alluring when Frisk led the group to the Surface. The azure sky adorned with constantly changing, fluffy looking things called 'clouds' at daytime was a never-ending entertainment for Papyrus.

But that didn't matter too much for Sans.

What mattered to him was that he was with his friends. Snowdin was definitely his home, but when his friends wanted to move to the Surface, he had to follow.

After all, the skeleton brothers were inseparable.

The negotiation took long. Asgore, Toriel and Sans accompanied Frisk, the official ambassador of monsters.

Humans didn't believe that the ten-year-old kid was the ambassador. They also found it hard to believe that skeletons could talk and freaked out when Sans' left eye glowed blue dangerously.

And of course, he had to crack a pun to lift the mood.

"i should say, this situation is pretty-"

"Sans," Toriel warned quietly.

"-humerus." He finished. Frisk silently face-palmed and Asgore gave a nervous smile to the humans ogling at the skeleton making skeleton puns. Which, just made the situation more awkward. Anyhow, the negotiation was made, and monsters were allowed to settle on the Surface.

Underworld was decided to be renovated as tourists' attraction. This obviously meant Sans' more-than-one-job-life was stuck with him. Frisk gave him a pat on the back, giving a small but encouraging smile as Sans groaned under his breath.

"so much for a brighter future."

By the time Frisk turned fifteen, Toriel and Asgore had moved in together, raising the human kid with showers of love. Papyrus and Undyne would often visit Frisk, offering their new culinary dishes that they invented.

Sans, he mostly stayed at his home on the Surface, or went down to Underworld to patrol the areas as the previous sentry. Frisk made sure to visit Flowey to keep him company, not that his reactions had any hospitality in them. Alphys was still figuring out how to save Asriel from the golden flower. The humans were warned to watch out for the golden flower that seemed very sweet.

Not that all humans were brainy enough to stop their stupid curiosity. This meant Sans had to run around in circles, warding off idiots who were so keen on touching the moving flower.

It was all that same, boring, chasing-off-idiot kind of day. And then he met her.

A dark hooded figure that stood ever-so-silently in front of the echo flower. Never saying anything. Not moving. Just staring. The waterfall didn't have much of a breeze, but a gentle breeze weaved through the waters as Sans regarded the figure noiselessly, lowering the hoods of the enigmatic figure.

Raven coloured hair waltzing through the placid breeze. Streaks of silver white reflecting the dim, mysterious cerulean glow from the echo flowers. Cat-like eyes blinking slowly as if she was trying to register towers of information. The ever-changing amethyst orbs shifting shades to darker violet.

Sans was so sure that he had seen the girl before. But from where? Sharp pain hit his skull, and when he opened his eyes again to see what the human was doing, she was already gone.

The flowers echoed the barely-audible whisper as Sans approached.

"…History repeats itself…"

A/N: Really short. I wish I could write longer, but it's almost 3am where I am and I'm half asleep.

I love critical readers. Leave a review if you have any ideas/suggestions or spot any mistakes I made.

-HelloSkye-