UnderSwap'SansXReader!

"Planning to get HOME"

Y/N-Your Name

Undyne Shows me one of his experiments during her
laser beams watching through hotland for times.

"I don't even mind that, why you'd came here.."she said
'While i was staying at two skeleton brothers i didn't keep going through my journey' i said in my thought.

"I just never been through enough, and now here i was going to tell you how to go back."i tell her quietly, i think she don't believe it.. making them confusing doesn't really helped me i'm trying to go back home before somethings gonna happend again.

"Please I hope you'll understand,I don't really be here..!"
Undyne can't speak twice but she's still listened i keep telling about what happend to the real underground is..

3 hours we've talked about.. now undyne understands clearly, i cried a bit almost falling through my tears
She holds my hand said that she'll agree what i'm gonna do.. i heard the creak of a door but nobodys there..

[◇Sans P.O.V◇]

I've heard all about everything how (y/n) tells about undyne,i feel my heart is going to shattered..why? Why would she leave?

I can't tell about it.. its just we have some fun time together
And i, the magnificent sans will always make her happy..

Papyrus was still chatting with napstatton no wonder what are they talking like boozows.. and i never came back to the door, as i leave i only stand here waiting for (y/n) to come back..

After (Y/N) leaves the room together with undyne..
I pretend to give a smile on (Y/N) and she smiled back
She said "Sorry to never tell you guys about it, its just about.. the king we said to" She lied why would she lied to us..

I nodded, my smile goes down but she never sees it she walk to the exit with papyrus.

"A-are you coming Sans?"

"Oh.. Right!" I go to (y/n) and leaves the lab.. i wonder what. Will happend to undyne..

We came back to Snowdin,i also thinking about her.. (y/n)
What will happend if she leave..i felt so quiet and i didn't speak much of others..

I sit in the couch held my hands to my boney knees and looks down.. (y/n) was cooking spaghetti for me and even papyrus i can't stop thinking about yesterday my heart is beating low..

My smile for her is fake, i don't know why.. i'm doing this..
Why i was thinking about 'leaving why would she leave why would she.. aughh this is hopeless!' I rub my forehead
(Y/n) was staring at me don't know what i'm doing but she worries anyway..

"Is everything wrong? Sans?"
She asked.. i was trying to lie

"N-nothing i was tired about my duty!" I lied, she can't say about anything.. but she holds a spaghetti for me and pstted my head i do a fake grin.. my emotions for her is hinding inside to me.

Withought a serious way.. she placed the spaghetti of the table and join to sit the couch watching the tv, she sighed and i didn't look at her.

"Whats wrong with you anyway?"
Her question is really difficult, i hold the glass of water i stuttered and shaking the glass i said "N-nothing nothings the matter of me.."i can't help to shake myself i tried to forget that earlier but now it stays forever in my mind.

My tears going to fall by the wooden plank,she was confused trying to get the answer suddenly.. i broke the glass, cause my gloved hands to crush the water.. i stand up and rushed through my room.

She shout calling my name but i didn't care..

♢♡♢♡♢[(Y/N) P.O.V] ♢♡♢♡♢♡♢♡♢♡

I don't know what happend to sans it seems he's different that day, i saw him crying but i'm out of words i ask papyrus what happend to him but he didn't even know..

He slammed the door shut and locked it, my worries for him can't deny.. i sighs and he didn't even ate his spaghetti yet.. so i save it in the fridge and i clean all the broken glasses.

I guess that went too well..

I gave papyrus a spaghetti and he eats them up,i don't know what happend to him but i'll catch up to him later

*Ding!*

A sound into my phone, an unknown number i saw but i read the message.

"Hello its me undyne,um.. time traveling may not be a good idea but i have a chance to get you back.."

She replies.

"You see.. if you want to go home uh.. you have to reach to the end before 2 days, after 2 days if you didn't make it the... the..
It may be difficult.. to tell and i don't know how to describe it
But you really need to reach the end by now.."

She replies again.

"I'll.. tell you what is look like, okay..?"

I didn't texted her back,but i saw all of her messages that gave me. I'll walk through the end within 2 days if i don't make after the 2 days was finished then i will never see all my friends again.

I know this may be complicated,i didn't even think monster s were just fake and swapped.. i just wanna go home
(A/N:No,You really like the other AU as well ;D)

I still think about sans if he was okay..
I knocked gently on his door and no response but i call his name "Sans? Are you alright?" I said with a quiet voice
But noone talked..

I said "I don't know whats gotten into you but, i really felt sorry for what you thinking..is it something bad happend?"

"*..."

Sorreh tuu short but i keep going anyway :>