1 - 20 of 70 Works in Chara (Undertale)/Reader
Navigation
Listing Works
-
Tags
Summary
A mutation has spread across the globe when monsters were released, humans either dying as their bodies couldn’t handle it or mutated with the rest.
The mutation was simple really, a change of dynamics. Humans started taking more unusual forms, growing more than a few ears, eyes, arms, legs, shit even a head at one point. Or body morphing differently altogether. Turning into their worst nightmares.
Y/N being a young child at the time of the outbreak changed with the rest of her family, half of her family died or killed themselves resulting in her being an Orphan at a young age, left alone in the world as her body shifted and changed. Body becomes leaner, smaller…cute. Cat-like ears and tail sprouting from her body, legs breaking and reforming into back hind legs of a cat's, fur covering her legs stopping at her waist.
Not only that, but she is an Omega.
Of course she doesn’t know oh no no no blissfully unaware, well that is until an over caring human Frisk decides to visit the Orphanage dragging along her friend Chara. Whom in turn absolutely dreads the visit. Let's say…frisk was the door to meeting a rowdy group of skeletons…
-
Tags
Summary
"There is nothing left for us here. It is time to leave this place behind."
-
By Choice {A Chara x Reader Undertale Fanfic} by imtooshortforyou
Fandoms: Undertale (Video Game)
15 May 2025
Tags
Summary
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
-
Tags
Summary
Just the story of a lonely flower whose determination to feel brought a miracle upon him.
Is it really such a crime wanting to be loved?(Based on the song Guardian of Loneliness/孤独の番人 by SCL Project)
(CW: this is a story with a yandere-like character, there will be themes of violence, toxic relationships, manipulation, etc. as well as themes of depression and self-loathing. Read tags for further information.)
Chapter 5: Soon.
Slow updates.
12/05/25: Chapter 4 up. It's been a while.
11/22/21: Still on hiatus, but easing my way back into writing. Just know I'm slowly working on this. I already fixed things my other fic, so I may change up a few things here too.
-
Tags
Summary
Nothing ever stays dead.
The disappearance of Frisk left a heavy mark on you, and her return forced you to face consequences you never expected.
- Language:
- English
- Words:
- 4,123
- Chapters:
- 1/?
- Kudos:
- 20
- Hits:
- 463
-
Tags
Summary
Instead, you can’t stop yourself from craving more and more of their light. The more you see, the more you want to see.
Your greatest dream has become shaped by them. Someday you want to hold this star close to you, safe in your hands, and show its owner how beautiful they are. That someone can treat them kindly. That they don’t have to be angry with the entire world, and that it’s okay if they’re afraid.
Because you think that’s what they need to know.
Because where there is anger, there is always something else underneath it.
adult!Chara x fem reader
-
I Will Take Your SOUL and Break Your Heart by i_never_ate_raindrop_cake_but_i_want_to
Fandoms: Undertale (Video Game)
10 Aug 2024
Tags
Summary
A story that narrates the adventure of a young woman and her new Human — but also Monster! — friends. She wants to be able to give everyone the Happy Ending they all so crave.
They need help in ending this Sorry Tale before it is too late.
ᯓ★
He asked you why you betrayed him. His breathing was ragged, and his hair did not have the same pleasant odor of coconut oil and wheat that you had grown to love. It was musty, reminding yourself what kind of monster you had in front of you.
Not a Monster, but a monster.
The meaning of his name didn't carry his personality anymore.
"... Ironic, is it not? Since I am not the one who is holding a dusty knife right now."
Series
- Part 1 of Petrichor
-
Cross sans x reader stuff by Ayano_The_Glitch
Fandoms: Undertale (Video Game), Underverse (Fandom)
26 Jul 2024
Tags
Summary
Hi. Yes, I'm here too. I sure am in a lot of old fandoms, aren't I? But yeah, this is a book about the lovely Cross Sans.
I barely see any love for him that isn't sanscest. And, I don't exactly ship any sanscest with him in it, so I'm here to fill at least a little of that empty "x reader" spot with all my love and passion made into writing for the beautiful boy.
(Cross is a Au/version of the original Sans and is made by jakei95. The original sans belongs to Toby Fox in his game, Undertale.)
-
Tags
Summary
Inspired by someones who's name begins with chocolatte.
The game is rigged, but even a rat can brake an iron wall if you give them enough time.
Just keep pushing, over and over again, victory is finded beyond the dark so keep going.This is a bit... crack? Idk, options begin after chapter three since the fic already began a time ago
-
Tags
Summary
Random NSFW Headcanon Alphabet for Fem. Chara
-
2018 and the Kinktober (closed forever) by Niya_Wonderland
Fandoms: Undertale (Video Game)
07 Feb 2024
Tags
Summary
Kinktober challenge, offer up some ideas and I will write. you can include your OC
-
Tags
Summary
In a world where females are scarce and the Monsters are so used to death a young woman is forced to help save them. Although she is not the only one that had been summoned, the weight of her duty is still heavy. Hopefully with a bit of time she will succeed in her given tasks but until then she needs to watch out for those around her. As Monster's of all sorts come to ask to be her mate some don't take rejections so well. Thank goodness though that she has a few helping hands. Well they would be considered helpful if they left her alone for five gosh darn minutes.
-
Tags
-
multifandom characters with a S/O who has adhd by Rat_in_your_sink
Fandoms: The Last of Us (Video Games), Arcane: League of Legends (Cartoon 2021), Little Nightmares (Video Games), OMORI (Video Game), Spider-Man - All Media Types, Undertale (Video Game)
12 Oct 2023
Tags
Summary
Basically characters that are usually cold or reserved being soft to there partner that has adhd
Series
-
Red Eyes [Chara X Reader] - 1: Oh So Curious - Wattpad by CouldYouJustSmile
Fandoms: Undertale (Video Game), Romance - Fandom
01 Aug 2023
Tags
Summary
2 years ago monsters were released from the underground, ending their centuries-long imprisonment at the hands of ancient humans.
Not a soul remains in the underground.
But that doesn't mean no one's there.
Be it chance or fate, The First Fallen will soon meet an all too curious human as he ventures into the deep beneath.
The Reader or [Y/n] is male and Chara is female.
I apologize if this bothers you it's just how I've always seen the character.Disclaimer: I don't own these Chara-cters nor do I own Undertale. This is just for fun.
This story's rating is [M] for explicit language, violence, suggestive or sexual themes, and fantasy/fictional violence.My lovely reader @NightTheDemon1 told me that the artist of the cover is a Twitter user known as
@A___IRAA. Thank you!This story was originally published on Wattpad. However, to broaden its audience I have decided to also publish it here as I know some people aren't fond of using that site.
I am the author and have put a link to this A03 account in my Wattpad bio to verify my identity.
Other than that, please enjoy, and remember to Smile!
https://www.wattpad.com/story/311668323-red-eyes-chara-x-reader -
Tags
Summary
At the end of the genocide route, the player character asks the player to end the world alongside her...
And she won't take no for an answer, so desperate times call for desperate measures.
-
Fallen Determination by Red_Fang
Fandoms: Undertale (Video Game), Storyshift (Undertale AU)
13 Jul 2023
Tags
Summary
Determination is one of the strongest things in the whole world that can allow you to mess with the time itself. But what if somewhere exists counter to such power? Somewhat... Even more dangerous than it.
(P.S. This fanfiction is about post-genocide Storyshift with new human in it. Hope you'll like it since english - not my primary language. Also you're free to think that MC = Reader if you like such a thing, but there will be no "Y/n" in it)
-
SFW Short Story/Green Archive by MSC201x
Fandoms: Undertale (Video Game), OFF (Game), Star Wars Legends: Force Unleashed - All Media Types, Shin Megami Tensei Series, Magic: The Gathering (Card Game)
04 Jul 2023
Tags
Summary
Someone thought I should have an Ao3 account so that my work easier to find, so here it is. Note that unless stated otherwise, these are written by me. Also for these stories, despite covering chara x reader (self-insert into Anon, it is short for Anonymous), they're mostly self-contained, think like most cartoons with the status quo resetting at each episode most of the time, will note when a story is a sequel to previous story.
Also will note to not expect new greens/chapters for either this or my NSFW archive in a consistent matter, this is mostly a side thing I do when the brainworms say that I should do it because my obsession with Chara is too strong and if I don't write some of these plots, who will? My main hobby's videogames, I do see the "kudos" (what the website calls the likes) and glad that you were able to enjoy these greens in some way or another.
-
Tags
Summary
As with the sfw, all here's written by me unless stated otherwise, self-contained unless indicated otherwise, welcome to the horny, the fucking, the sex. And no, I am not ballooning the tags for each fetish here, they'll be in the chapter summaries.
-
Tags
Summary
A save-Asriel fic where Flowey makes fun of Frisk for fixating on him rather than Chara or the 6 souls.
[OG prompt: here!]