21 - 40 of 1,413 Works in Nonbinary Frisk (Undertale)
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Summary
The way of a Glutton is a non-canon Reader insert story that takes place in the story of Red Mass, a self AU of Undertale.
You are getting a new job in the City of Paradise, the City of which Sans (Dee) and Frisk built.
Although you want to work in the city laboratory and also fulfill your dream of studying magic, you also get to know more monsters that you have ever seen in your life. And maybe your dorky skeleton boss asks you out on a date?
This story will contain lots of drama, blood and tears.
So be excited for it!
Series
- Part 1 of The Way of a Glutton
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After doing everything the right way in the first timeline, Frisk was compelled to do the genocide route for what they felt were "good" reasons. In doing so, they have broken utterly and become something new. Something absolutely devoted to Sans, and not remotely sane. Now they are striving to fix everything and find their path forward. What the hell is Sans supposed to do now?
(This is not an erotica story - it's a drama / sort-of-romance that eventually gets really spicy)
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Reader is a lawyer who was looking for a cheap room for rent. After Papyrus left to study abroad for culinary arts, Sans was down to let her stay in his brother’s room for a fair price. They both have a great roommate relationship; they don’t know each other that well yet, but Sans makes her laugh.
One day, she walks inside the apartment, wondering if she was seeing double or if there were two identical skeletons in the middle of the living room.
Yeah, a second roommate was never mentioned on the lease.Series
- Part 1 of Three idiots
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A hundred and five years ago, a person calling themself Chara became the first human to fall into the underground. They would go on to become the closest of friends with Asriel Dreemurr, the prince of the monsters. Both of their deaths, four years later, would go on to shatter the underground irreversibly.
The year is 2124. A person naming themself Frisk climbs Mount Ebott in a desperate rush and, voluntarily, becomes yet another victim of the mountain. Not long after, they soon come into contact with a strange, traumatized, and frustratingly cute spirit that they come to call "Red." Clearly, they are not okay, but what exactly is weighing them down vexes Frisk. Though, they have their own demons to contend with that they struggle to seal away.
They wander through the underground, learning more about each other, helping each other with the mental wounds and scars each have yet to tend to. And maybe, just maybe, they might tell each other how they have come to feel about one another.
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came out from nowhere, left my whole heart renewed by wisteriabeantrees
Fandoms: Deltarune (Video Game), Undertale (Video Game)
01 Jul 2025
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Kris and Frisk meet on accident on a rainy night. They talk about the SOULS. Kris, somehow, gains a lot of insight from this conversation with a strange and overly energetic child.
it's 4 AM right now and i started writing this thirty minutes ago (because i've been rotating these two in my head and making them crash into each other for two weeks now)
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Elephant in the Room by liverposy
Fandoms: Undertale (Video Game), Deltarune (Video Game)
30 Jun 2025
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...And there's a skeleton you've never met before on your couch.
Sans mistakes your apartment for the one him and Papyrus just moved into. He worked a late night and didn't even notice!
The skeleton brothers happen to be your neighbors, and wackiness (and more!) ensues.there will be angst and cool other stuff like...!
thank you for reading my summary :3 -
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Asriel, along with his college roommate, Chara, want to get some extra credit with some volunteer hours! They gain some work at the high school back in Asriel's old town. But while there, they find an entrance to a mysterious dark world.
Series
- Part 1 of Chararune
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If I've Fallen From Hell, Then This Must Be Heaven by decafblackberrymora
Fandoms: Undertale (Video Game)
29 Jun 2025
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A certain green-yellow striped sweater donning individual has fallen into the UNDERGROUND. They are accompanied on their journey by a petulant voice in their head (no they are not going insane).
[Undertale, except Chara and Frisk have swapped places.] -
Post vengeance route Clover refuses Frisk the access to Ebott by Kittany_the_Fox
Fandoms: Undertale (Video Game), Undertale Yellow (Video Game)
29 Jun 2025
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Just an interaction I thought would be interesting !
After killing Asgore and freeing the 5 human souls, Clover came back to their old town. They grew up, and today, guard the entrance to mount Ebott to avoid anyone falling in.
But then Frisk happens
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Will now continue this ! Will update the chapter number when I'll have a rough draft of the story and where I want it to go exactly :)
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A kid falls underground and they are DETERMINED to do the fastest pacifist speedrun ever, this of course becomes a problem for the narrator
- Language:
- English
- Words:
- 3,619
- Chapters:
- 1/?
- Kudos:
- 5
- Hits:
- 50
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A Third Chance by NullVol
Fandoms: Undertale (Video Game), Undertale Yellow (Video Game)
27 Jun 2025
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Very few people get a second chance at life, but what if someone had the chance at a third?
Tags are subject to change.
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When Jane Ainsley finds herself trapped with monsters Underground, it's hard not to fall into old habits. The kindnesses of monster-kind make it easy to become complacent, when she had spent so long avoiding companionship. However, the ever-present pull of the Void keeps her moving forward, towards someone only she can SAVE. In helping Dr. W.D. Gaster find themselves once again, can Jane form her own sense of identity?
An isekai-adjacent story starting Underground and featuring an anomaly that is not our narrator.
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"i already "befriended" your mom last night" by PheebsIgLol
Fandoms: Undertale (Video Game), Deltarune (Video Game)
26 Jun 2025
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Sans realizes that maybe even the past actions he made in the world of Deltarune has consequences.
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FRISK GETS THE FLU SND NOW EVERYONE IS WORRIED
(LET ME KNOW UR THOUGHTS AND IF I SHOULD CONTINUE TO UPDATE THIS)
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By Choice {A Chara x Reader Undertale Fanfic} by imtooshortforyou
Fandoms: Undertale (Video Game)
25 Jun 2025
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Y/N was never the type to be around people. She didn't have many friends besides her sister, but she didn't mind. It wasn't until Frisk and the Dreemurr family came along and became the family she had once lost.
Through Frisk, Y/N is able to realize the power of their determination. One night, as Y/N is hanging out with Frisk and Asriel, the topic of Asriel's dead sibling, Chara, comes up.
For some reason, the conversation led Y/N to want to explore the underground, for maybe there's a lonely ghost wandering around all alone with nobody to talk to.
Reader, Frisk, and Chara use She/They pronouns
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Seven is the Number of Perfection by DodrioTheThird
Fandoms: Undertale (Video Game), Deltarune (Video Game)
24 Jun 2025
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A REWRITE OF "Six is the Number of Sin"
A single golden ray shone on the drooped figure of a single yellow flower. Six petals, six represents imperfection, six is the number of weaknesses and sins. Though there's 7 sins, one could say the last of them was Flowey himself. The number seven meant perfection, he was only one petal away from "perfection". One soul away that time.
Frisk visits Flowey in the underground and takes him to the surface much to Flowey's dismay. So much has changed on the surface, monsters have slowly been reintegrated into society. Adjusting would be difficult for Flowey, to say the least. Not like he has a choice. Yet Frisk and Toriel refuse to let him wilt.
Series
- Part 2 of Cornflower - Undertale AU
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Frisk sits down next to Asriel and pushes the pot off to the side a little. His gaze has begun to trail down to the patch planted above your bones. You would give anything right now to know what he’s thinking, and if there’s a part of him somewhere that still sees you. Not the shadow inside Frisk he mistook for you. The little dark streak that followed in your footsteps.
“Penny for your thoughts?” Frisk asks for you, pulling a nickel from their pocket.
The flower glares. “Are you stupid?”
chara and frisk visit an old friend.
Series
- Part 4 of still just you, frisk
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Can You Even Call This An AU Explanation, I Didn't Receive A Mint On My Pillow Or Anything by FizziPawpFanfics
Fandoms: Undertale (Video Game), Deltarune (Video Game)
19 Jun 2025
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Basically a chapter-by-chapter explanation of each of my Undertale AUs as they're made.
List:
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- Fallentale
- Undergrowth
- FlowerFell Rewritten
- UnderTheories
- Switched Fates
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Summary
Two years after the events of the true pacifist ending the player did something incredibly risky. With Chara's assistance, they were successfully able to reestablish a connection with Frisk, but this had unexpected consequences. It caught the eye of a threat far more dangerous than anything Frisk, Chara, or the Player had ever seen before. It captured one of them, and gave the other two a choice, save their friend and convince them to change their mind, or watch as the entire universe is annihilated.
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Twisted Karma by IFBench
Fandoms: Undertale (Video Game), 逆転裁判 | Gyakuten Saiban | Ace Attorney
16 Jun 2025
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It had been two weeks since the legal world had been turned upside-down from a certain attorney's disbarment.
Franziska von Karma has had enough of it all, and takes a vacation from her job to investigate a mystery of disappearing children.
Legends say that those who climb Mount Ebott never return.
But a von Karma is perfect. A von Karma won't be bested by a simple mountain.
Right?
(In which Franziska von Karma falls into the Underground.)