The twins fall down

Reads 75
Votes 0
Parts 8
Time 1h 11m

Reads 75
Votes 0
Parts 8
Time 1h 11m

claus fanfiction fantasy kire monsters murder nofrisk ocinsert twins undertale

Claus and Kire fall down a hole for some reason, and they discover a world that they never thought were real. However, since these two can't die, and both have murderous tendencies...
Well.
It can't end well.All Rights Reserved

claus fanfiction fantasy kire monsters murder nofrisk ocinsert twins undertale

Series

DR/UT Fanfictions

8 parts
4 parts

Table of contents

8 parts

#38claus

Content Guidelines

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The Seventh and eighth soul (brother of Frisk Reader) by Megamaniac67

When Frisk and her twin brother Y/N fall into the Underground as infants, the monsters who find them never expect the impact the children will one day have. Raised lovingly by Toriel, the two grow up sheltered in the Ruins, unaware that their arrival has already shifted the balance of the world below. As the years pass, Frisk becomes curious-drawn to a mysterious sealed door and the young skeleton on the other side named Sans. Their secret friendship blooms quietly, a flicker of light in the dark. But where Frisk finds warmth and connection, Y/N feels something stirring within himself-a faint orange glow deep inside his chest, the Soul of Bravery that he doesn't yet understand.

Is Red for Blood or Love? (Fell Sans x Reader) by Styla_Mythic

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I Promise... (UnderFell Sans X Reader) by TehOGPotato

Y/n lived with monsters on the surface but ever since the day they sent them down to the Underground she changed... she is much more terrified of everything but the only thing that makes her move on is the promise she made to her friends before they left.

UnderBound: The Fallen Monster by GumballFan13

We all know the story of Undertale, about a human who falls into the underground, befriends everyone or kills everyone, but what if during the war between humans and monsters, the monsters won? This is the world of UnderBound, a tale about a monster who falls into the underground, and meets various humans. Except, these humans are various Earthbound/Mother characters. Join the fallen monster as he goes through the underground, encounters strange humans, and make friends.

You've Grown Up, Frisk by NoOneCaresSeriously

"You've grown up... A little too much, kid." "It's been a while... Sans." It's been 8 years since Frisk had fallen into the underground. 8 years since she left that place. Leaving all she ever wanted behind, she decides to re-visit the place where she first fell.

I'm in love with a monster by GamingTiger15

The barrier is broke, the monsters are free and now...frisk finally has time to address something she'd put aside for some time now, how she feels about a certain skeleton. (Fem FriskxSans)

Imagine if the person who fell to the UNDERGROUND wasn't Frisk? What if it were someone completely different, someone in control of not only their choices, but their powers as well? Meet Grace, a young adult who just happened to be walking through the woods the same day Frisk decided to fall. Grace managed to SAVE Frisk from their usual fate, but only in exchange for hers; Grace falls down into the UNDERGROUND. As she makes friends and walks through the UNDERGROUND, read to see how a different character might have made her decisions on the same path an innocent child took - and how she might ruin it.

You are a little scared of the adventure ahead but not knowing what might happened next for the rest of your life . You meet new monsters every day.

Corrupted Timeline: UF!Sans X Reader by xXDiabolicEnigmaXx

While hiking with your family at Mt.Ebott, you end up falling down a hole in another world where you encounter monsters who want to kill you. Will you be able to change their hearts and bring back hope? Or will you be killed trying?

The Seventh and eighth soul (brother of Frisk Reader)

When Frisk and her twin brother Y/N fall into the Underground as infants, the monsters who find them never expect the impact the children will one day have. Raised lovingly by Toriel, the two grow up sheltered in the Ruins, unaware that their arrival has already shifted the balance of the world below. As the years pass, Frisk becomes curious-drawn to a mysterious sealed door and the young skeleton on the other side named Sans. Their secret friendship blooms quietly, a flicker of light in the dark. But where Frisk finds warmth and connection, Y/N feels something stirring within himself-a faint orange glow deep inside his chest, the Soul of Bravery that he doesn't yet understand.

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