The Great... Sans? (Underswap! Sans X Reader)

Story Time

I only remember about three timelines, and I think the first timeline was my favorite.

It started the same way this timeline did. You fell down that gaping hole and met Asgore, spared him, and continued on to Snowdin. Then you met me, laughed at my buzzer trick, and continued on to see me and Sans argue.

You completed all of Sans' puzzles, battled and spared him, took him out on a date, got together with him, continued on to the Waterfall and so on.

Eventually you had freed us all, and had taken us to the Surface, where we had started our new lives. You, me and Sans lived together in a big house and were incredibly happy.

You got a job as a (career choice) and absolutely loved it, Sans got a job as a police officer and was never happier.

I just stayed home and watched T.V.

You and Sans were happily dating, and soon the day came where Sans finally had the figurative guts to propose.

Then you two had kids. I was a pretty great uncle, by the way.

And everything was perfect.

And then you reset.

And when I woke up in Snowdin after 20 years on the surface, I felt a little confused, a little angry,

And very betrayed.

You soon came out of the ruins again with a big smile on your face, like the 20 years you invested into the last timeline didn't even happen.

You greeted me like normal, laughed at my buzzer trick, and treated Sans like you had this timeline.

Except with one difference.

You killed him.

And you continued on like nothing happened.

You didn't kill anyone else, and when you approached me again later on you treated it like it was nothing. You treated my brother like he was nothing. Like he was just a candy wrapper to be thrown away. Gone, forgotten. And you. Didnt. Care.

Then third timeline came around.

And you showed no mercy.

Anyone who got in your way turned to dust: Asgore, Dogamy, Dogaressa, Doggo... Sans... And people you haven't even met this timeline, all swept away in the wind. You were unstoppable, a killing machine, and eventually you killed everyone, even me.

And then you reset again, and now this happened. Are you happy now (Y/N)? Are you happy with what you've done?













"I'm sorry"