Gaster X Reader

I have nothing better to do so what the hell gotta take a risk now and again, eh? Hope you enjoy!❤

FRUIT OF THE VOID (Gaster X Reader)

Dark, darker, yet darker. The darkness keeps growing in your life. You don't know why, but there's someone relentlessly haunting you. He won't leave you alone, and every dream you have is a nightmare. It seems peace is currently impossible for you. What great evil could possibly want to harm you? You never felt that...

Grillby x Reader: Burn the Witch

Decades after the monsters were imprisoned underground, the humans have found a new prey to hunt. Despite hiding from the humans for centuries, witch trials swept through the world killing almost all surviving mages. Almost all. The reader is one of the few mages still alive through the horror of the witch trials. Fle...

Human (Gaster X reader)

COMPLETE!!! This story is in the past! It plays off the idea that sans and papyrus are Gaster's kids. Being the past it means that his kids aren't born/created yet. Also monster kid, Frisk, Chara, and Asriel aren't born/created

Glowing Souls (Gaster x Reader)

You are about 15, Gaster is 17. In this Gaster is an older brother to Sans and Paps. Asriel is about 6 along with Frisk and Chara, who show up later. You and Sans are best friends, but Gaster is amazing! At age 17 he is the royal scientist and you hope you can help him out.

- My Angel from the Sky - Gaster x Reader

Suddenly you find yourself in the Underground, with no memories and an unknown and painful past. Your first encounter is Flowey and he tells you how weird and different your soul is. What does it mean ? What happened to you ? A fated meeting awaits you. The beginning of everything. THE UNDERTALE P.S (GasterxReader) Th...

Dr. W.D. Gaster

Beware of the man who speaks in hands. Even though I love the headcanon that Gaster is Sans and Papyrus' father, I still can't stop wondering what the ACTUAL CANON is. Soooo I decided to compile everything that possibly has something to do with Dr. W.D. Gaster.

Gaster x reader

In this book I plan to do one shots for Gaster the royal scientist, for the underground. Requests are accepted and would really help in the making of this oneshot book. I will not do lemons due to the fact that...... (Throws hands in air and falls to knees) I do not know how to!! anyways hope you like the book. Since...

Gaster x Reader

You had been getting these weird warning, mainly from Sans. You packed plenty of healing items and your heart locket to see what everybody is so scared of. You soon meet not only your friend, but a fun skeleton who stole your heart (not literally!!!)

The beauty and the beast. [Gaster X Reader]

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Gaster x Reader- Not Your Fault

You're a human who has fallen down into the underground. There you meet a certain skeletal scientist and his sons. Will you get close to the family or will you become their enemy. Loosely based on TheBombDiggity666 Dadster comics (which you should totally check out if you haven't already) and occurs before frisk's ap...

W.D. Gaster X Neko Reader

W.D. Gaster studies love. He studies his test subjects then kills them. But here's the question. Will he kill you? Or will you forever be in his heart?

We Studied and We Fought and We Killed [WD Gaster x Reader]DISCONTINUED

!!!DISCONTINUED!!!(Before we get into what this story is about, I would like to clarify a few things. this story may contain some Hamilton references. It won't have any smut because I get awkward at those parts. The most that will happen is kissing. If you want me to make a smut chapter, comment. My notes during the s...

Gaster x Reader (Probably will be a Lemon)

So I was really inspired to keep writing stories by someone who commented on one of my stories. You know who you are. I've been on here a lot and I've seen people actually reading my books... I'm so happy ^_^ Anyway... A backstory and How to read an X reader will be the first chapter... This'll probably end up being a...

Scientist - GASTER X READER

Hi guys! So this is actually my first time writing a adventure story (and xReader), so I am kind of sorry if it looks crappy!! ****** A long time ago, people were missing when they climb up Mount Ebott. They say there was magic, got lost, or even died. But when you discover the secrets of the mountain, you will get at...

∆°{The Darkest Souls}°∆ | Gaster x Reader

When the monsters were sealed in the Underground, a few humans, still loyal to monsterkind, went with. (Y/N) Was one of them. She was a Scientist, one of the most brilliant minds of the monster world, and ended up working alongside the Royal Scientist. W. D. Gaster. And, despite her knowing better, began to grow attac...

A Mask Of Scars (Gaster x Reader) (ON HOLD)

This story is old and the big ew. Please don't read until I change the bio or I will commit slip n' slide, sauce on the side, sewer slide.