This is based off a joke fic I read awhile ago on ao3. Enjoy!
Trudging through the ruins once again, Frisk couldn't help but feel annoyed.
Sure, Toriel was the best goat mama, and her butterscotch cinnamon pie was pretty great, but she really wasn't lying when she said the ruins were quite small once you got used to them.
And after so many resets, Frisk had definitely gotten used to them.
Papyrus was funny; his terrible cooking and hilarious inability to bring himself to actually capture Frisk was still amusing no matter how many times it happened.
Undyne had been kind of intimidating the first time she met her.
Well, if you call noticing someone stalking you through the caverns of waterfall half a minute before they pelt you with magic spears "meeting" someone, that is.
After Frisk had gotten to know her better, she warmed up to the hot-tempered fish monster.
Alphys was okay, in Frisk's opinion. She was just lonely and wasn't sure how to make friends.
Mettaton was annoying. It was always his insane tv shows that made Frisk have to reload during a run.
Especially Mettaton ex.
She could still hear the music that blared on stage during his fight.
After that, it was usually smooth sailing. Like seeing the clock hit 12:00 at school- almost done!
But Frisk wasn't annoyed at Toriel, Papyrus, Alphys or any of the others. They weren't what caused the first reset that started this mess.
Frisk was annoyed with Sans.
She probably shouldn't be, it technically wasn't his fault, even if he was the sole reason she had to rest. Truthfully, she wasn't sure if he even remembered the incident.
Still, she was getting tired of going through the underground again and again.
After complimenting a couple froggits and taking a piece of monster candy for the road, she let her mind wander, remembering the first reset...
They'd only been on the surface a few weeks, at most. Humans had taken to monsters surprisingly well, sharing equal rights with them almost immediately.
The copious amounts of gold that each monster had been using as currency underground probably had something to do with that.
It had been Alphys' idea. She thought it would be fun if they all went to see a lego movie together.
So they did.
Then, it had been Undyne's idea to go to lego land. She wanted to "see the stars in person", as she put it.
Frisk wasn't thrilled by the trip, but she wasn't going to complain. She had family and friends that loved her and wanted to take her places, and that was more than she could've hoped for when she first climbed that mountain.
So there they were, standing in front of one of the biggest lego sculptures ever made, a lego castle.
Undyne just had to try and go inside it, leaping over the red rope that separated the castle from people like her. Never mind the signs every where that clearly read "do not touch".
So she did. She gave a triumphant "NGAAHHH!" right before the entire castle collapsed, thousands of legos scattered across the floor.
It was impossible not to step on the legos that littered the floor as security forced them all out the front door along with a permanent ban from lego land.
Luckily, everyone wore shoes.
Except Sans.
He'd done pretty well almost the entire way, but he stumbled slightly in the doorway and his slipper fell off and well...
He stepped on a lego.
And then he died.
It was...really sudden and unexpected. Frisk had been walking right behind him and she didn't even know he was hurt until there was suddenly a pile of dust scattered over a bunch of legos where her friend had been not even a second earlier.
Of course, Papyrus cried. Loudly and dramatically.
When Frisk had finally realized what had killed him, she wasn't sure whether to laugh or cry. She knew he had ridiculously low HP, but seriously? A lego?
A janitor came by and absently vacuumed up his dust along with some stray legos, much to the horror of the other monsters.
It was at that point Frisk reset, thinking she would just keep Sans away from any legos the next time around and everything would be alright.
When she met him again outside the ruins, she was relieved to see him alive, but it had been just like the first time. He didn't seem to remember her or anything else that had transpired.
Then, the surface would began to change. So she reset a second time.
Since then, he's remembered her and past resets.
Thinking back on it, Frisk decided maybe it was best if he didn't remember the first reset.
Death by lego probably wouldn't be a very pleasant (or dignified) memory.