Fellsans Stories

"Hm?" Timer asks taking his wrist watch off, checking the time before taking out a screwdriver and pulling it apart. Nervous habit of his. The meeting between...

Y/n lived with monsters on the surface but ever since the day they sent them down to the Underground she changed... she is much more terrified of everything but the only...

You seemed to be a introvert before you died, this made you seem quiet all the time and when you did talk it would seem to come out as a whisper. Seems like those sign l...

The reader has died and has been reborn as a killer sans but pregnant He has to learn how to use his powers and learn about himself first ------------------------------ ...

One clumsy moment and a broken leg are all it takes to leave you at the mercy of the very edgy and very hostile monsters of the underground. Thanks to your knowledge as...

Nightmare is a simp for Error thats all ya need to know.. love at first sight? slowly falls into simpness? Will Error like him back? maybe..idk..read to find out Also...

The cover of this book is made by ♡͙♡͚ɢʀaɖɨɛռt♡͚♡͙ on Pinterest. Error had enough of the violence in his multiverse so he decided to jump into the void in hopes of commi...

Yes , a sequel. I can't just leave everybody hanging when my oneshots were actually getting a fairly awesome amount of reads! Plus, I have even MORE ideas! I can't wait...

Please do take note that the Story cover isn't mine and belongs to original rightful owner. My very oneshots book with lemons, fluff, and possibly angst. Book Start: Aug...

"ᴇᴠᴇɴ ᴛʜᴏᴜɢʜ ʏᴏᴜ ᴍᴀʏ ʙᴇ ᴇᴠɪʟ...ɪ ᴄᴀɴ ꜱᴛɪʟʟ ꜱᴇɴꜱᴇ ɢᴏᴏᴅ ɪɴ ʏᴏᴜ" "ʜᴏᴡ? ᴡᴇ'ᴠᴇ ᴅᴏɴᴇ ɴᴏᴛʜɪɴɢ ʙᴜᴛ ᴋɪʟʟ, ᴛᴏʀᴛᴜʀᴇ ᴀɴᴅ ᴀʙᴅᴜᴄᴛ. ʏᴏᴜ ᴄᴀɴ'ᴛ ᴘᴏꜱꜱɪʙʟʏ ꜱᴇᴇ ᴀɴʏᴛʜɪɴɢ ɢᴏᴏᴅ...

Kinda like discord but with the Undertale Aus this will be very stupid

Underfell is a dark world with the major rule of kill or be killed. Even though children are suppose to be secluded from this rule, that doesn't stop monsters from hurti...

When Frisk falls into the Underground, she is horrified to discover the world of monsters is every bit as evil and broken as she had been told her entire life. But when...

read the title Come join me and our amazing adventure through the many Ships and even many Multiverse AU's like DreamSwap and NaJ No sweat! I hope you all come and have...

𝐔𝐍𝐃𝐄𝐑𝐕𝐄𝐑𝐒𝐄 𝐗 𝐑𝐄𝐀𝐃𝐄𝐑 | 𝐑𝐄𝐀𝐃𝐄𝐑 𝐈𝐍𝐒𝐄𝐑𝐓 ‹―💜―› "𝐅𝐀𝐍𝐂𝐘 𝐒𝐄𝐄𝐈𝐍𝐆 𝐖𝐇𝐄𝐑𝐄 𝐘𝐎𝐔 𝐀𝐑𝐄 𝐍𝐎𝐓 𝐒𝐔𝐏𝐏𝐎𝐒𝐄𝐃 𝐓𝐎 𝐁𝐄, 𝐖𝐀𝐍�...

after fell-papyrus hurt red he left going to the good guys but they are constantly arguing and mostly about him.... What does he do now? Tell me what you think about t...

You. Yes YOU! 🫵 You randomly wake up in a middle of a battle to notice that you are now in the guardian of positivity body! You can't remember who are you! What you are...

Im hecking bored so why the hell not Also these r gonna be done on mah tablet sooo my autocorrect is dumb lmao

I have seen multiple people's head cannons and decided to add mine These are NOT cannon, don't take these as fact. You can use these in your stories though Undertale be...

Everyone knows about Dust!Sans, the crazy megalomaniac that killed his AU in order to gain EXP an LV to defeat the genocidal human. He later on joins Nightmare and keeps...