I Promised (sans x reader)

𝘾𝙝𝙖𝙥𝙩𝙚𝙧 𝙛𝙞𝙫𝙚

~~Y/N Pov~~

After Frisk and Sans come back home, we had dinner, Frisk suggest that he should go and sleep in the inn, I said that I am coming too but he refused saying that it will be much better if I stayed here, I didn't agree at first but he convinced me anyway

Days go by, me and Frisk never left Snowdin town, whenever I ask Sans or Frisk they say that it's dangerous outside, and when I ask Papyrus he apologizes saying that Sans trusted him to not take me away of their sight

I was mad at them and I argued with them lots of times because of that, the thing that drove me crazy was every time I ask them why is it dangerous, they refuse to tell me, sometimes I was sneaking out but Sans find me every time, a week passed and I decided to be patient

Papyrus said that Undyne is coming today, I don't know who Undyne is, I didn't meet her, all I know that Papyrus go and train in her house every day, but he said that she will be coming for dinner today

I was sitting on the couch crossing my legs while staring at an empty page of my notebook, tapping at the page with the back of my pen thinking, I want to write something but I have nothing to write, all the Deja Vu stopped since that day when me and Sans were in the forest

I suddenly heard a knocking on the door, I decided to open it, but Sans quickly teleported in front of me

"I'll open it kid" he said, I shrugged and set back on the couch

Sans put a hand on the door handle, he sighs before opening it to reveal a blue fish like lady, she was like in her twenties, she was wearing a black sleeveless shirt, blue jeans were a bit torn where the knees are and red boots

"Hey punk" Undyne waved at Sans, he waved back, it seem that she didn't notice me

"Hi" I said waving at her

"Hi-  PAPYRUS YOU CAPTURED A HUMAN?" She screamed causing me to cover my ears

Papyrus get out of the kitchen at the mentioning of his name

"NO UNDYNE, I DIDN'T CAPTURE HER, SHE IS A FRIEND"

"How-what-when-" She looked confused at Papyrus answer, this fish lady looked familiar for me, I've seen her before, I kept gazing at her trying to remember when did I saw her, she noticed my stare

"What are you looking at human?" She said in disgust

I ignored her tone "have we met before?" I asked knitting my brows

She rose a brow "no we haven't" I nod

"Anyway, what do you mean that this human is your friend?? How can you make a friend with a human, they are pathetic disgusting annoying creatures"

I cringed at her hatred "no we ar-" I get interrupted by a door creaking that announce by a new member who entered the party, it was Frisk holding a bag full of drinks that Papyrus asks him to buy

"ANOTHER HUMAN?!?!?" Undyne shouted

"Jeez is all you do is screaming and hating over humans?" I argued with her, part of me regret what I said and felt that it was wrong, but why? I have no answer for that, even tho I didn't know who she was