Flowey (Undertale) FanFiction

It's Not Too Late (Male Reader Edition)

It's Not Too Late (Male Reader Edition)

F/F
M/M
G
Updated
11.04.2025
Fandom
Undertale (Video Game)
Characters
Reader, Chara (Undertale), Frisk (Undertale), Sans (Undertale)/Reader, Alphys/Undyne (Undertale), Sans (Undertale), Papyrus (Undertale), Undyne (Undertale), Alphys (Undertale), W. D. Gaster, Sans/You, Sans/Male Reader,
Tags
Slow Burn Friends to Lovers Humor PTSD lots of fluff male reader - Freeform And angst mentions of self harm Mentions of Suicide monster hate groups Reader is male You like kidnapping?
You haven't had an easy life. The mistakes you've made have carved literal scars into your mind and body. A precious life was lost because of you. But now you've moved to a new city, trying to leave all that behind you. You've got a promising new int...
Fŕįßk Jane đřēæmèr Potter

Fŕįßk Jane đřēæmèr Potter

Gen
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling Undertale (Video Game)
Characters
Original Characters, Harry Potter, Minerva McGonagall, Severus Snape, Ron Weasley, Hermione Granger, Ginny Weasley, Fred Weasley, George Weasley, Albus Dumbledore, Chara (Undertale), Frisk (Undertale),
Tags
Character Bashing Albus Dumbledore Bashing Manipulative Albus Dumbledore Female Frisk (Undertale) Harry Potter Has a Twin Harry Potter Has a Sibling Frisk doesn't like Dumbledore
Lily and James had three children their oldest Jake Potter, their hair, th middle child Harry Potter, the boy who lived and the youngest Frisk Jane Potter known to the Wizarding world as Jane Lily PotterThis story starts in Frisk's first year at hogw...
The Death of a Monster

The Death of a Monster

Gen
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling Undertale (Video Game)
Characters
Harry Potter, Frisk (Undertale), Sans (Undertale), Flowey (Undertale), Death (Harry Potter), Death & Harry Potter, Harry Potter & Sans (Undertale), Flowey (Undertale) & Harry Potter, Flowey & Sans (Undertale), Undertale Player
Tags
Magic Death Harry Potter is So Done Major character death - Freeform Master of Death Harry Potter Harry Potter's Name is Hadrian Overpowered Harry Potter Reader is not Frisk or Chara (Undertale) Undertale Genocide Route Sans (Undertale) Remembers Resets Tired Harry Potter Harry Potter is Not Okay
Master of Death Hadrian Morte checks up on Mt. Ebott because there is an irregular amount of death there.He finds everywhere empty and filled with dust, until he reaches a very specific corridor.
undertale asks and dares !!

undertale asks and dares !!

F/F
F/M
Gen
M/M
Multi
Other
G
Updated
12.04.2025
Fandom
Undertale (Video Game)
Characters
Chara (Undertale), Frisk (Undertale), Sans (Undertale), Papyrus (Undertale), Undyne (Undertale), Alphys (Undertale), Asriel Dreemurr, Nice Cream Vendor (Undertale), Toriel (Undertale), Mettaton (Undertale), Flowey (Undertale), Grillby (Undertale),
Tags
Romance Other Ships Not Mentioned in Tags Prompt Fic LGBTQ Character LGBTQ Themes Pride Platonic Relationships Askbox Fic Comment Fic
rules in first chapterinspired by The1andonly_soup !!a lot of these are headcanons lmao
undermaniacs

undermaniacs

F/F
Gen
G
Updated
12.04.2025
Fandom
Undertale (Video Game) Animaniacs Pinky and the Brain
Characters
Flowey (Undertale), Brain & Pinky (Pinky and the Brain), The Brain/Pinky (Pinky and the Brain), The Warners' Mother | Angelina/The Warner's Father | Sir WIlliam the Good, Billie (Pinky and the Brain)/Julia (Animaniacs), Cindy, Elmyra Duff, The Warners' Mother | Angelina Contessa Louisa Francesca Banana Fanna Bo Besca II, The Warners' Father | Sir William the Good, Yakko Warner, Dot Warner, Wakko Warner,
Tags
Out of Character Undertale Neutral Route short stories of scenes in the game cindy is frisk elmyra is chara wakko is flowey(I'll make a backstory for him) pinky is sans brain is papyrus toon flowey Undertale Genocide Route Undertale Pacifist Route
one-shot stories of scenes from the gameCindy falls into a hole that leads her to a underground kingdom of toon. Cindy must find a way back home to the surface...while making some memorable friends along the way.
Where the Lost Become Found

Where the Lost Become Found

Gen
G
Updated
18.04.2025
Fandom
Harry Potter - J. K. Rowling Undertale (Video Game)
Characters
Harry Potter, Tom Riddle | Voldemort, Chara (Undertale), Frisk (Undertale), Original Undertale Character(s), Sans (Undertale), Papyrus (Undertale), Toriel (Undertale), Flowey (Undertale), Harry Potter & Sans (Undertale), Frisk (Undertale) & Harry Potter, Harry Potter & Toriel (Undertale)
Tags
Family Fluff Past Child Abuse Tooth-Rotting Fluff Child Abandonment Protective Harry Potter Harry Potter is a Horcrux Harry Needs a Hug Harry Potter-centric Adopted Harry Potter Horcrux Tom Riddle and he gets one Toriel Adopts Harry
Harry is abandoned on Mt. Ebott by his aunt. Toriel left her husband after their two children died. Alone, they are broken and lost souls. Together, they are a family. (A Toriel raises Harry fanfic.)
Quantumtale After Life

Quantumtale After Life

F/F
F/M
M/M
G
Updated
12.04.2025
Fandom
Undertale (Video Game)
Characters
Original Characters, Chara (Undertale), Frisk (Undertale), Alphys/Undyne (Undertale), Sans (Undertale), Papyrus (Undertale), Undyne (Undertale), Alphys (Undertale), W. D. Gaster, Flowey (Undertale), Frisk/Sans (Undertale), Asgore Dreemurr/Toriel,
Tags
Alternate Universe - Quantumtale (Undertale) these are just short stories from that universe it's a bit different Female Frisk (Undertale) Frisk doesn't go back in time they just rewind the ages kind of It's mainly about Frisk and Sans They will progress in age in this Frisk is sometimes a sad bean
After a wrong RESET Frisk and Flowey got sent back in time when all her friends were around her age. The souls have been scattered around the Underground and they keep messing with time. After this RESET Sans is now able to control time. Frisk has ma...
some story that's inside my head

some story that's inside my head

F/F
F/M
G
Updated
12.04.2025
Fandom
Original Work Undertale (Video Game) Mahou Shoujo Madoka Magika | Puella Magi Madoka Magica
Characters
Original Characters, Chara (Undertale), Frisk (Undertale), Kaname Madoka, Akemi Homura, Undyne (Undertale), Flowey (Undertale), Lena (Disney: DuckTales), Webby Vanderquack, Chara/Asriel Dreemurr/Frisk, Nishijou Takumi/Sakihata Rimi, Sakihata Rimi,
those are story that anyone with better writing skill can adopt1)the torment of undyne2) Other idea of stories
The Lone Star

The Lone Star

F/F
F/M
Multi
G
Updated
13.04.2025
Fandom
Undertale (Video Game)
Characters
Chara (Undertale), Frisk (Undertale), Alphys/Undyne (Undertale), Sans (Undertale), Papyrus (Undertale), Undyne (Undertale), Alphys (Undertale), W. D. Gaster, Toriel (Undertale), Mettaton (Undertale), Flowey (Undertale), Asgore Dreemurr/Toriel,
Tags
Other Additional Tags to Be Added Eventual Romance Alternate Universe - Soulmates Eventual Relationships Eventual Fluff Soulmates Gaster is aware Lunaris [OC] has special abilities Alternative Reality Traveling this fic is long Lunaris is a human who can shift into a monster soulbound
“Life is a puzzle, a riddle, a test, a mystery, a game—whatever challenge you wish to compare it to. Just remember, you're not the only participant; no one person holds all the answers, the pieces, or the cards. The trick to success in this life is t...
Floattale

Floattale

F/F
F/M
G
Updated
13.04.2025
Fandom
Undertale (Video Game)
Characters
Original Characters, Other Character Tags to Be Added, Chara (Undertale), Frisk (Undertale), Original Undertale Character(s), Original Child Character(s), Sans (Undertale), Papyrus (Undertale), Undyne (Undertale), Alphys (Undertale), Asriel Dreemurr, Original Female Character/Original Male Character,
Tags
Rating May Change Original Character(s) Other Additional Tags to Be Added Freeform Help What Have I Done 车 I don't know Don't Read This I Tried Why Did I Write This? Please Kill Me
Years ago,199X, monsters were banished to the clouds.Year 201XAdvanced technology, pills, and so much more. Avyanna takes the right pills at the right time* In FT monsters main clothing colors are Cadet Gray, Gold, and Moonstone Blue **CANCELED!!! NE...
The Lamenting And Mourning Of A Flower And His Associates (By Fall Out Boy)

The Lamenting And Mourning Of A Flower And His Associates (By Fall Out Boy)

F/F
M/M
G
Updated
13.04.2025
Fandom
Undertale (Video Game)
Characters
Papyrus (Undertale), Undyne (Undertale), Alphys (Undertale), Asriel Dreemurr, Toriel (Undertale), Mettaton (Undertale), Flowey (Undertale), Asgore Dreemurr, Alphys/Undyne, Papyrus/Mettaton, Toriel/Asgore Dreemurr, Frisk (Referenced),
Tags
Angst One Shot Again Asriel becoming Flowey Post- True Pacifist Route but it's all okay Because I wouldn't hurt my best friend Flowey Determination Alphys the smol sad gay I haven't even written this yet but it's mentally planned
Asriel has been convinced to reveal himself as Flowey and live with his family on the surface, and so after his transformation, he does so. But it's not so easy to adjust to you (or your son) being a murderous flower, and there is a lot of discussion...
There's No Fixing This

There's No Fixing This

F/F
Gen
M/M
Other
G
Updated
13.04.2025
Fandom
Undertale (Video Game)
Characters
Original Characters, Sans (Undertale), Papyrus (Undertale), Undyne (Undertale), Alphys (Undertale), W. D. Gaster, Toriel (Undertale), Mettaton (Undertale), Flowey (Undertale), Asgore Dreemurr, Alphys & Undyne (Undertale), Napstablook (Undertale),
Tags
Angst Depression Suicidal Thoughts Brotherly Love Hurt/Comfort Implied/Referenced Suicide Minor Original Character(s) Friendship Child Abuse Anxiety Insanity Papyrus-centric
Papyrus has a secret under that scarf of his.Enjoy an AU that I made up in the dark recesses of my mind. Should you decide to read, I hope you enjoy!
Mountain View

Mountain View

F/F
F/M
G
Updated
13.04.2025
Fandom
Undertale (Video Game)
Characters
Alphys/Undyne (Undertale), Sans (Undertale), Papyrus (Undertale), Undyne (Undertale), Alphys (Undertale), Toriel (Undertale), Mettaton (Undertale), Flowey (Undertale), Asgore Dreemurr & Reader, Asgore Dreemurr (Undertale), The Undertale Cast
Tags
My First Work in This Fandom Reader Is Not Frisk Reader is named Give Asgore some love!
Once upon a time there was a monster king named Asgore. He was lonely king, for his queen had left his side after the death of their children. Then he met someone beyond the barrier.Once there was girl named Vanessa. She was a sad girl, who had lost...
Silent Tale

Silent Tale

F/F
M/M
G
Updated
13.04.2025
Fandom
Undertale (Video Game) Silent Hill (Video Game Series)
Characters
Sans (Undertale), Papyrus (Undertale), Undyne (Undertale), Alphys (Undertale), Papyrus & Sans (Undertale), Toriel (Undertale), Flowey (Undertale), Asgore Dreemurr, Papyrus/Sans (Undertale)
Tags
Blood and Gore Alternate Universe Language some OCs Papyrus-centric Papyrus Has Issues I dont really know much about silent hill so ... horrible summary! Big Brother Sans everyone worries for Papyrus Could be read as fontcest Or brotherly
Follow Papyrus as he fights, struggles, and tries to survive the ominous town of Silent Hill.
Bury the Hatchet

Bury the Hatchet

F/F
Gen
G
Updated
13.04.2025
Fandom
Undertale (Video Game)
Characters
Chara (Undertale), Frisk (Undertale), Alphys/Undyne (Undertale), Sans (Undertale), Papyrus (Undertale), Undyne (Undertale), Alphys (Undertale), Toriel (Undertale), Flowey (Undertale), Asgore Dreemurr, Flowey & Frisk (Undertale), Chara & Frisk (Undertale),
Tags
Other Additional Tags to Be Added POV First Person Canon Relationships Post-Undertale Pacifist Route Reader Is Not Frisk Selectively Mute Frisk Houseplant Flowey Non-Binary Frisk Non-Binary Chara frisk hates politics monster/human politics and frisk in the middle flowey is a Problem Child
Up on the Surface, thing are moving as smoothly as they can be moving with an entire population of monsters moving up from under the mountain. Which, for the record, is not smooth at all. Underneath Mt. Ebott, someone got left behind. The young ambas...
Hybrid

Hybrid

F/F
F/M
M/M
Other
G
Updated
13.04.2025
Fandom
Undertale (Video Game)
Characters
Chara (Undertale), Frisk (Undertale), OC/OC, Sans (Undertale)/Reader, Sans, fem!Reader, Papyrus, Nice Cream Vendor (Undertale), Flowey (Undertale), Asgore Dreemurr, Burgerpants (Undertale), Asgore Dreemurr & Toriel,
Tags
Depression Canon-Typical Violence Other Additional Tags to Be Added Eventual Smut Hurt/Comfort Implied/Referenced Suicide Emotional Hurt/Comfort Reader-Insert Politics Violence Additional Warnings In Author's Note Female Reader
You are a student. You are a mage. You are a Bard. Life is a stage. When all that you know, and all that you trust, are thrust upside down in the rush. Who will you turn to for safety and rest? Mages or monsters? That is the test.(This story takes pl...
The Demon Returns

The Demon Returns

F/F
G
Updated
13.04.2025
Fandom
Undertale (Video Game)
Characters
Chara (Undertale), Frisk (Undertale), Sans (Undertale), Papyrus (Undertale), Undyne (Undertale), Alphys (Undertale), W. D. Gaster, Toriel (Undertale), Flowey (Undertale), Asgore Dreemurr, Alphys & Undyne
Tags
Emotional Hurt/Comfort Light Angst
Finally, the burden Sans had been carrying for so long,Lifted.Well, he thought.But something's definitely going on. It's hard to tell, but Frisk has been acting kinda different lately...like they're fighting something? It's weird.{Hi! This is my firs...
Shadowed

Shadowed

F/F
F/M
M/M
Other
G
Updated
13.04.2025
Fandom
Undertale (Video Game)
Characters
Original Female Character(s), Other Character Tags to Be Added, Reader, Chara (Undertale), Sans (Undertale)/Reader, Sans (Undertale), Papyrus (Undertale), Undyne (Undertale), Alphys (Undertale), Asriel Dreemurr, W. D. Gaster, Toriel (Undertale),
Tags
Explicit Language Other Additional Tags to Be Added Fluff and Angst Temporary Character Death Past Relationship(s) Soul Bond Soulmates Major character death - Freeform Bad Puns probably not Reader Is Not Frisk Puns & Word Play
An ''accident'' leaves you with only a mysterious new friend and a lot of fear for your child's safety. You go throught hell both mentally and physiqually to make sure that what you hold dear is safe again.But hey, what do you know, you might find ne...
Bad Luck and Bad Bones

Bad Luck and Bad Bones

F/F
F/M
M/M
G
Updated
13.04.2025
Fandom
Undertale (Video Game)
Characters
Frisk (Undertale), Sans (Undertale), Papyrus (Undertale), Undyne (Undertale), Alphys (Undertale), Toriel (Undertale), Flowey (Undertale), Asgore Dreemurr/Toriel, Monster Kid (Undertale), Muffet (Undertale), Sans/Reader, Undyne/Alphys,
Tags
Smut Teasing Dirty Talk Magic Swearing Fluff and Smut Romance POV Second Person fem reader - Freeform sin - Freeform Dom Sans Heat Cycles
You lived a nice life in the city calm and collected, until a bag of walking sex and bones entered your life and decided to fuck both you and your life up. Slowly becoming friends and maybe even more than that you decided to stick it out for the heck...
Protoanemonin

Protoanemonin

F/F
F/M
M/M
Multi
G
Updated
13.04.2025
Fandom
Undertale (Video Game)
Characters
Chara (Undertale), Frisk (Undertale), Sans (Undertale), Papyrus (Undertale), Undyne (Undertale), Alphys (Undertale), Toriel (Undertale), Flowey (Undertale), Asgore (Undertale), Undyne/Alphys, Asriel (Undertale), Asgore/Toriel,
Tags
Other Additional Tags to Be Added Murder Additional Warnings In Author's Note Implied Murder be warned yet - Freeform Alternate Universe: Underfell - Freeform Cruel Frisk Pacifist Chara Conscience Flowey 15-year-old Frisk Resets
You were always considered an odd child, whether it was by your peers or by your family members. Not odd in the sense that you were inherently particular or peculiar; you weren’t quirky and didn’t love to style your hair in ways that no other child w...