Undyne Stories

1.2K Stories

Undertale:Secrets by SansTheSkeIeton_
#1
Undertale:Secretsby Sans
Sans has had an interesting past. A past that even his beloved brother barely even knows of. A past that he wishes could remain a secret. But when the questions start be...
Undertale AU Sibling Oneshots by CrowBorn666
#2
Undertale AU Sibling Oneshotsby CrowBorn666
Yup! They're back! A thing I started back in my older account UndertaleKyannaKitty. They're your siblings now! Cute, edgy, as much angst as you want, sad-whatever! Reque...
The First Human [X Sans] {COMPLETE} by RaeTheStar
#3
The First Human [X Sans] {COMPLETE}by RaeTheStar
Imagine Undertale, but Chara never showed up. Chara wasn't the first human in the Underground. What if a glitch occurred, and you fell down instead? You fell into the Un...
Completed
(Sans x Reader) When Two Souls Meet by ZanaBSparrows
#4
(Sans x Reader) When Two Souls Meetby Zana B Sparrows
Sans has lived through countless timelines. He's seen the kid make friends with everyone, only to give up in the final moments. He's seen the kid killed, over and over a...
Completed
Undertale Comics 1 by crazytitan25
#5
Undertale Comics 1by crazytitan25
Just a bunch of comics about Undertale.I do not own this comics.
Completed
Mr.  Erratum by CrimsonOrRetry
#6
Mr. Erratumby Crimson/Retry
Error can take it no longer. After centuries of Pain and suffering, Error no longer cares what happens to the people who caused him pain, and now wants to leave the plac...
'Shy Pet' Underfell Sans X Reader by VeteranTucker
#7
'Shy Pet' Underfell Sans X Readerby Frosty
[EDIT: I am now aware of the plot errors in this story, but this book will never be edited nor re-written, so I kindly ask you to stop commenting about them.] You were s...
Royal Blue by dealialestina
#8
Royal Blueby Spilled-my-coffee
Sans knows a lot about secrets; he hides many. But when old burdens emerge from the darkness, secrets, new and old, put his brother in danger; and what else can a good b...
Undertale X Reader by Frei_111
#9
Undertale X Readerby Frei_111
You woke up on bed of golden flowers without having anything to remember. Going to an adventure where you met with many monsters to go home. Easy, right? Not really, act...
Endless possibilities (Underfell Sans x Gender Neutral Reader) by verypunnyauthor
#10
Endless possibilities (Underfell S...by Crimson
Word has been released that monsters now roamed the surface, and you can't help but feel slightly skeptical. You had been told since childhood that monsters were vile a...
Undertale AU Sibling Scenarios by UndertaleKyannaKitty
#11
Undertale AU Sibling Scenariosby Kyanna
This will be similar to Undertale AU Oneshots only: They're your siblings! Yep, cute, edgy, or anything else! Feel free to request!(Requests are closed at the moment) No...
Completed
Female Chara x Male Reader by yaboitekken
#12
Female Chara x Male Readerby yaboitekken
Decided to just make a Chara story, so it's gonna be pretty dumb. This story is when you left the underground with everyone, INCLUDING CHARA, you don't have feelings fo...
What We Hope For (Sans X Reader) ✨UNDER EDITING✨ by Grace97721
#13
What We Hope For (Sans X Reader) ✨...by Grace
Everyone has a happy ending. If you're not happy it's not the end . . . . •°•°☆°•°• Y/n (that being you) fell into the underground...
A Monster Lord? (Overlord x Sans Male Reader) by Sanster69
#14
A Monster Lord? (Overlord x Sans M...by Sanster69
Male sans reader x overlord harem, I'd say it has good grammar, though their may be some spelling mistakes in the first few chapters Lemon warning & probably gore waring...
Tale of Love || Male Kris x Female Ralsei || Kralsei by Migiiiiii14
#15
Tale of Love || Male Kris x Female...by Migiiiii
Kris, the only human living in Hometown, has a normal life there with Toriel. He and Susie, an unlikely friend, entered in a closet which led them to the Dark World. Now...
Not Just Evil (Underfell Papyrus X Reader) by TheIndianaCrew
#16
Not Just Evil (Underfell Papyrus X...by Indiana
Underfell Papyrus is viewed as one of the most ruthless monsters in the underground but what is really under that tough persona? Thanks to Tamqul on Deviantart for letti...
Completed
✩ ᴜɴᴅᴇʀᴛᴀʟᴇ ᴘᴀʀᴇɴᴛ ꜱᴄᴇɴᴀʀɪᴏꜱ  ✔ by pxriien
#17
✩ ᴜɴᴅᴇʀᴛᴀʟᴇ ᴘᴀʀᴇɴᴛ ꜱᴄᴇɴᴀʀɪᴏꜱ ✔by ⇢ ˗ˏˋ ʀᴇɴ ・゚
*ೃ༄ 𝘥𝘪𝘥 𝘺𝘰𝘶 𝘦𝘷𝘦𝘳 𝘸𝘢𝘯𝘵 𝘵𝘰 𝘣𝘦 𝘢 𝘤𝘩𝘪𝘭𝘥 𝘰𝘧 𝘢 𝘮𝘰𝘯𝘴𝘵𝘦𝘳 ? 𝘰𝘳 𝘢 𝘥𝘦𝘵𝘦𝘳𝘮𝘪𝘯𝘦𝘥 𝘩𝘶𝘮𝘢𝘯 ? 𝘸𝘦𝘭𝘭 , 𝘯𝘰𝘸 𝘺𝘰𝘶 𝘤𝘢𝘯 ! *ೃ༄ 𝙞𝙣...
Completed
Bruised To The Bone: (Sans x Reader) by sweetisbored_
#18
Bruised To The Bone: (Sans x Reade...by sweet.is.bored_
(Y/N). A peculiar soul; A human core, with a skeleton's power. Her parents are ashamed of her, beating her every time they catch her using magic. One day, she accidental...
Undertale Comics 2 by crazytitan25
#19
Undertale Comics 2by crazytitan25
The part 2 of comic book of Undertale because I ran out of room.
UnderTale-A Journey To Love (Charisk) (Completed) by Ryker_Writes
#20
UnderTale-A Journey To Love (Chari...by FluffyArtPaint
Frisk falls into mt. Ebott and meets chara. They both take a journey together in the underground little does frisk know, chara had fallen in love with frisk. Will frisk...
Completed