Prologue

Long ago, two races ruled over Earth: Humans and Monsters. One day, war broke out between the two races. After a long battle, the humans were victorious and they forced the monsters underground, sealing them with a magic barrier. The monsters were furious and the king vowed that any human that fell into the underground will be executed.

Many years later...

Underfell: The Undtold Story

Chapter 1: Meeting Flowey and Toriel

"I-I d-don't want to fight you!"

The flower continues to sob.

"I c-can't take this place anymore!"

Frisk, the human child that accidentally stumbled into the underground wears a concerned expression on their face. They kneel down and try to pet the flower gently but the depressed plant pulls away from from their attempted embrace. "Who are you? Why are you here? Just please...please..leave me alone. Frisk gives the sunflower a patient smile. "Don't worry, I won't hurt you. Tell me what's wrong" The little flower looks at them with tears in its eyes. "I don't trust anyone here. Just leave me alone!" Its voice is a tad more serious this time. Frisk lets out a calm sigh. "I fell down here and I'm just as scared as you. We can be scared together." Frisk smiles and winks at him. "My name is Frisk, what's yours?" The flower starts to regains his composure. "M-my name is As-...F-flowey." Flowey says as he tries his best to give Frisk a smile. Frisk realizes that Flowey was trying to say another name but they didn't want to make him sadder. Frisk starts to pet Flowey's stem. "What's wrong Flowey? Why are you so sad?" He hesitates for a moment before answering. "T-this place...it's hell. I h-hate it here! I j-just need a way out." Frisk smiles at him. "Well, so do I! Maybe we can find a way out tog-"

"No! There's no hope! Not for me, not for any other monster down here, and especially not for you." Frisk gives Flowey a confused look. "I'm sorry to tell you this but, there's a barrier that keeps monsters from going to the surface. As long as we're stuck down here, nothing will change."

"Well, do you know if humans can go through the barrier?" Flowey shakes his head and hangs it in despair. They both sit in silence for a few moments. "We'll never know if a human can go through the barrier unless we see it for ourselves." Flowey looks up at Frisk. "No. No no no. I d-don't want to leave out of the ruins. This is the only safe place for me." "But Flowey, if you hate this place so much don't you want to leave it? Don't you want to be free?" Flowey turns away from Frisk. "That..would be amazing actually. I wouldn't be afraid of everything. Life would be better for me. I wouldn't be sad anymore. But...I can't handle whatever's outside of these ruins. I can't handle other monsters. I just don't want to cause anymore trouble..." Frisk tilted their head in confusion. "What..do you mea-"

"Is anyone there? Hello?~"

A woman's voice called out from the darkness. Frisk quickly turned towards the voice, not saying a word.

"It's okay! I mean no harm!"

The voice sounded closer this time and Frisk was frozen in fear. They couldn't bring them self to move or say anything, even when the voice said that they won't pose a threat to anyone.

"Oh! Aren't you a little cutie~"

As the figure became more visible, the more calm Frisk became. The figure turned out to be an anthropomorphic, goat-like woman with crystal white fur. She's wearing a black dress with a red emblem on it. But even with her gothic-esque clothing, she still looks like an angel. Frisk stares at her with a feeling of slight fear. "Don't be afraid child." She giggles. "My name is Toriel and I watch over these ruins." Frisk smiles back at her. "M-my name is Frisk... ." "*giggle* You don't have to call me 'Ms.' you can call me Toriel or Tori." Frisk nods at her. "Yes ma'am." Toriel begins to move closer to Frisk but surprisingly, they don't move back. They start to feel safe around Toriel as if she is their own mother. "I'm pretty sure you don't want to be in this dark, damp place anymore. Follow me and I'll show you my home." Frisk nods and began to follow Toriel until they remember that Flowey might've wanted to come with them. "Um, excuse me Toriel but there's one more person that's with me." "Okay child, where are they?" Frisk looks around and notices that Flowey is nowhere to be found. "Uhh...I don't..know. They just kind of..disappeared...I..guess." Frisk's face turned into a look of concern. "Oh, I'm sorry that your friend left you, dearie. M-maybe they'll show up again." Frisk hung her head. "I hope so."

"It's going to be okay..You know what? I'll bake you some pie when we get to the house." Frisk gives Toriel a little smile and follows her to her home.

To be continued..

Author's Note:

Just a reminder that this is my interpretation of the Underfell AU. Also, since Undertale is such a lengthy story I'm going to split the story up into new stories instead of chapters. But then again, I might not. I'll see what I feel like. This is not canon and I don't own the characters or the story, Toby Fox does. I'm a very busy person and I'll try to post new chapters every day. Please feel free to leave a review and tell me what you think.