Howdy and welcome to this fanfic! I hope this will be a good story. So sit back, relax, and enjoy the story.

"Hey, Frisk, wanna go to Grillby's?"

"No, I'm going to Undyne's with Papyrus. Why don't you just look for someone else to accompany you?"

"Huh. Alright then, kid, help me keep an eye for Paps, 'kay?"

But Frisk already left.

It was always the same when Sans tries to ask Frisk to have a meal with him. Frisk constantly finds an excuse to get out of it. He sighed, and made his way to Grillby's bar.

"Hello, Sans. How about trying to keep your record of coming in every thirty minutes? It's been ten minutes since you came in," greeted Grillby as Sans hopped onto his usual seat.

"How's the flamin' hot business of yours doing, Grillbz?" replied Sans, purposely averting the question. With another question, of course.

"Usual order?"

"Yep."

The food was served. Sans finished it in silence. "You don't want ketchup?" Grillby asked out of curiosity, because Sans always asked for a bottle.

"No, but I've got many things to ketch-up on, so please put it on my tab," replied Sans, finishing his food and hopping off the stool.

He took a shortcut to Undyne's house, only to find one of her windows broken, with Papyrus watching the happenings inside through said window. "What'cha doing out here?" asked Sans, approaching his brother. "Did you break any bones?"

"I am alright, dear brother. I just had this grand idea of having Undyne and Frisk spend some quality time before my cooking class begins, and my cooking class starts at five, it is four-thirty right now," replied Papyrus. "Wait a minute… don't you need to run your hotdog stand?" he asked, and was answered with a shrug.

Sans looked inside. "Oh, my…" he muttered. Undyne's house was a total warzone – the dining table was split in half, everything on the kitchen counter was swept to the floor, and wait… is the stove ON FIRE?

Undyne and Frisk stood in the middle of the room, wielding spears, tired but enjoying themselves. "NGAAAAH!" yelled Undyne as she brought her spear down at Frisk. They tried to deflect it, failing to notice that it was a feint. They stumbled, leaving an opening for an attack. Undyne, noticing her chance, yelled "Checkmate!" as she swung the spear towards Frisk's back. Frisk's eyes widened in alarm-

But the blow never came. Frisk heard someone crashing to the counter. They looked up to see Sans, right hand outstretched, with an eye flashing cyan and yellow. "You alright, kid?" he asked, letting Undyne go.

"Just a little disoriented is all," responded Frisk, panting. "What brings you here, Sans?" They looked into Sans's eye. "Why is your eye blue and yellow?"

"WHO DARES TO INTERRUPT OUR TRAINING SESSION!?" roared Undyne, trying to stand up.

"It's okay, Undyne. We could spar again sometime. Although, we should select a better location to spar," said Frisk. Sans's eye reverted to its usual black and white.

"Wowie! Look at the house! It's in shambles," commented Papyrus as he walked in. He hurried to Undyne and helped her up.

"Undyne, Frisk nearly died by your hands," Sans's pupils blackened.

"No, I did not try to kill the punk, and YOU…!" Undyne took a deep breath, checking herself. "Interrupted out battle, huh? Their SOUL is green, did you realize that? Besides, the spears are just training spears, not the real thing!"

"Yeah, Undyne was teaching me some weapon skills, not attacking me. The training spears do look realistic, don't they?" said Frisk.

"Oh. I'm sorry, Undyne. You alright?" Sans's eyes reverted to their original colour.

"Yeah, but your hit got me real good. I never knew you could fight this well,' responded Undyne, smiling widely.

"What about me, Undyne, what about my fighting skills?" asked Papyrus.

"Yours are alright, but you just need some improvements here and there,"

"Ha! The great Papyrus is also competent to fight! By the way, do you have any gross bandages, human? I'm sure that Undyne needs that," said Papyrus.

"H-hey! When did I say that I need them? It makes me look like I'm weak!" complained Undyne.

Sans left Undyne's house as soon as Undyne said that he was quite a good fighter. There were many things contradicting in his mind.

You know what? You can't let the human near your brother and Undyne!

Well, why not?

They're just gonna kill Papyrus when he trusts them enough, right? And then they're going to reset, and everyone will forget about it.

But they don't seem like they're hostile in this run, I mean, the Barrier is broken, right?

Did you forget what Papyrus and Undyne looked like when they die? Oh! And why did you save the human just now?

I don't know…

You even let your secret slip! You're lucky that you didn't unleash a Gaster Blaster!

…

You think they noticed you leaving Undyne's house? Hah! Of course they didn't! Anyway, do you think they'll be grateful for saving them, or kill you all the same?

6 left.