Underfellgaster Stories

It was twelve AM on a friday night- or saturday morning. You'd just finished working a double at the bar; tired and achy as all hell, all you wanted was get home and get...

The fall lasted for mere seconds, and yet it felt like an eternity. The adrenaline rushing through your veins proved useless, as there was nothing you could do. You hit...

If you have a request, you can comment or message me! I'll do lemons and fluff, whatever you request. Gaster Gang goes to Bunnymuse! Photos not mine unless said!

When Stars's past was dark and confusing, someone came to help and give some clarity. After that, Stars never saw the stranger again, until he is in the void. A Fanfict...

The Royal Scientist Works on Something Very Important Not Even Caring for The Genocide That Happens Outside But Then Something Enters The Laboratory

There's a girl who lives alone with full darkness around her. She's familyless and had PTSD. Her name was Syafiqah, who run away the girl from been killed. But one day...

The sequel to A Knocking at the Door! Like the actual one this time! If you haven't read A Knocking at the Door yet, I would really advise you to read it now... You woul...

what happens when Mike is sucked out of his au and thrown into another due to a malfunctioning machine?

Ok,Ok, I Know Most Other People Have Already Done This But I'm Really Into The Fandom So Imma Just Do It Anyways ;-; Also I Will Be Doing Gaster x Gaster , Gaster x Read...

I . just thought I saw so many other people are making thing like this so why not. and everyone just call me Ka rin ki shi ki ka Ari Mei ka ki to or applesauce It won'...

It was a pleasant night for (Y/N), that is until a portal traps her in a place with magic talking skeletons. Will she be able to leave or will she be stuck there forever...