Gastersans Stories

you lived in a nice white big house own your own, you liked watering plants and you liked animals too. but you were little naive sometimes Toriel visit you to have tea.

'When I was 13, I killed someone. By accident of course... It was the day I found out I possessed some type of power.' You kept it to yourself for years until one...

Frisk's world has just fallen apart. She's innocent and afraid in a prison of dangerous monsters, figuratively and literally. There's something going down and Frisk isn'...

You were working with Alphys in the lab in Undertale when chaos strikes! In a freak accident, concentrated determination is mixed with an unnamed concoction and blow you...

HIGHEST RANK: #41 in Random juѕt чσur dαílч hαppєníngѕ wíth ѕαnѕ αnd híѕ díffєrєnt "hím(ѕ)"! (this book is full of Sanscest, trust me) EVENT: [n/a] Book C...

Gaster the royal scientist dark reality, you've seen the boys. You THINK you know there backstory. It's time for a harsh truth about Sans and Papyrus you never thought y...

You've heard the stories, of the mysteries of a man who guides lost ladies home by night legend says his voice is like a demon of hell and anyone who's ever approached h...

Frisk Dreemurr has a pretty normal life with her dad Asgore. But when's she's attacked during a school field trip, she finds that she is the demigod daughter of Life. ...

Cover belong to rightful owner (not mine, but i hope its mine) Warning : As* G sans! possessive b*stard Nothing is fair....right? i guess meeting you make everything bec...

It has been a year since demigod Frisk rescued her father from the Underworld. Now, a new quest has arisen, and this time with a question: What really happened on the da...

The only way to the top in this world, this world born of war, born of death, the only way of ascension? ...is to become someone you don't want to be. And so I've got to...

It's been two years since the barrier was shattered... All was well until humanity's opinion and voices ruined it all. The war had begun. --------------- Although one gi...

Chara and Frisk are twins. What happens if one prefers a twin over the other?

Yumi Nanase a singer/idol of Japan,known as the well known idol of the world will be going to america and become a shy,cute,and talented school girl in UnderHigh! find o...

Aqua has a terrible life. She's seen it all, divorce, death, abandonment and everything she ever had has been taken from her at one time. But when someone comes into her...

Pictures of your favorite Undertale (and AU) characters! ;)

Frisk had always run into the occasional human-hating-monster, but when the attacks got more violent and consistent, she has no other choice but to seek the companionshi...

//Requests are open// Different varieties of characters to read. From original Sans to AUs. The possibilities are endless! Lemon, perhaps... *you feel your sins crawlin...

Frisk's simple job of delivering a message for her mother to G, God of death, takes a dark turn.

NOTE: THIS STORY IS DISCONTINUED [Drawing on Cover by: SmokyJack on Deviant Art.] You clumsily bumped into someone on your way home from work, apologising as their paper...