Underfellsansxreader Stories

A girl who has never seen the world outside of the lab sees it for the first time only to fall down into the underground. What will she find down there?

(ᴠᴀʀɪᴏᴜs sᴀɴs ᴀɴᴅ ᴘᴀᴘʏʀᴜs ᴀᴜs x ʀᴇᴀᴅᴇʀ) ||ᴀɴᴅ ᴛʜᴇɴ ɪ ɢᴏ ᴀɴᴅ sᴘᴏɪʟ ɪᴛ ᴀʟʟ ʙʏ sᴀʏɪɴɢ sᴏᴍᴇᴛʜɪɴɢ sᴛᴜᴘɪᴅ ʟɪᴋᴇ "ɪ ʟᴏᴠᴇ ʏᴏᴜ."|| Life was merciful enough to grace you...

Y/N is a half Demon Half Human, who lives with her friend Amy. They moved to a little town recently where Amy has loads of friends, which is the reason both of u moved...

Just Sans X Reader No Lemon Cover by my homeslice tkdgirl222 I don't own any of the characters in these story Don't kinkshame me I know your here for the same reason I w...

You wanted to help but it was too late... So, you left. Tears filled your eyes as you thought of the one person that needed you the most... They were gone and it's your...

You had a happy family and never got a big problem, just that you never believed into you. Your parents tried everything to help you but in vain. One day, you decided to...

Once, there was a battle between two races. Humans and Monsters. The Humans thought Monsters were Vicious, Threatening and Merciless. Though the Monsters thought the s...

You fall down into the Underground, thinking your life was helpless. Now....you realize your life is helpless without him....

I own none of the art shown unless I say so in the chapters. All game credit goes to Toby Fox.

On A03 as well and A03 will get updates and posted chapters first. After having A03 shutting down a bit ago i decided to add the fic here as well so it will be reachable...

*Coming Soon!*

You were being abused. You couldn't take it anymore. But you also couldn't leave your kitten, Millie. So you gently put her in your backpack and got going. Your father...

hey guys I thought it might be a good Idea to write this story but what's it is about is that a girl named seacresea is well abused and bullied because everyone well thi...

Making friends with others may sound easy as you think! But the thing that starts betrayal is breaking their trust Hah! Got your interest? It better! Feelings are coming...

(Now people the title might seem confusing but you'll figure out why this was the title) You play as a character whom who fell into the Underground,you get to choose all...

sorry if this book is bad it's my first one

Ever since you were a small child, you had heard the legend about Mt. Ebott. Whoever went there, was never seen again. Believing that the legend was a myth and wanting t...

This is one of the first undertake stories that I'm actually gonna work on a lot so please don't judge this.

A request by @K00LKatts You are not a normal human, and you didn't live in a normal world. Everyone is mean and rude up in the surface. You couldn't take it anymore and...

(y/n) is an abused neko that never know her real parents. She has been used as any kind of toy that you can think of and feels paralyzed. She went to Mt.Ebott hoping to...