Author's Note~ This is an Undertale fan fiction. Undertale is an amazing game and so I am putting a very special spoiler alert here. Undertale is a game best played while having the least amount of knowledge about it in my opinion, so you get the best gaming experience.

Disclaimer: I do not own Undertale or any characters.

I also am including a couple theories I found on YouTube. I am using one of GameTheory's Undertale theory, so please watch his video if you are confused. I will update this if I use any other theories. I do not own MatPat's theory or any of the games mentioned in his theory. I won't say them now as to not spoil the fic.

This is my first fan fiction that I have published. Any polite criticism is appreciated, and always welcomed.

NOTE: In this Fan Fiction, both Frisk and Chara use they/them terms. I know some people portray them as female, or male, or one or the other, but I decided to write them as gender-neutral. I apologize if you don't like that, and also please let me know immediately if I make a mistake.

This is post-Pacifist run, and begins a week after the barrier is opened. Also, Asgore and Toriel have gotten back together. I'm not good at the whole posting thing, so I don't know how to change the rating. RATED T TO BE SAFE!

The girl stared up at the looming mountain in front of her. It was the mountain that everyone spoke of; terrifying and full of dangerous creatures that would sooner slay you then look at you.

Hours later, as she looked at the deep hole that tunneled straight down, she swallowed and turned to leave.

And stopped as a small yellow flower peered up at her with a curious expression on its face.

She opened her mouth but no sound came out.

It had a mouth and a face and it blinked at her.

"I thought humans were done coming to Mount Ebott," it said.

She really did scream, and stumbled back in shock.

Except there was no ground, and there was only air. She screamed as she fell, and the flower lunged, huge vines bursting out of the ground to try and catch the girl, but it was too late.

Flowey stared at the hole and swallowed.

"Frisk is gonna kill me."

_time_skip_

Frisk rummaged around in the drawer, pulling out all sorts of random items and placing the stuff on the counter nearby.

"You know, Frisk, you didn't have to help me pack up," Toriel said from behind them.

Frisk looked up at the queen. "It's perfectly fine, I enjoy helping everyone."

Toriel smiled and nodded to the kitchen around them. "All that's left are the boxes and then we can carry those to the surface. Or we can eat some butterscotch pie first:"

Frisk agreed and taped the last box shut. Then they sat down as Toriel brought two slices of pie from the fridge.

Frisk was half done when there was a knock at the door.

Toriel went to answer it and Frisk heard a shriek and a whomph as one of her attacks ignited.

"WAIT!" A familiar voice cried out. "I have something to tell you and Frisk!"

Frisk abandoned their pie and bolted for the door to see Asriel- no, Flowey there, looking up at them, one of his petals slightly singed as he had clearly just dodged one of Toriel's attacks.

"As- I mean, Flowey? What's wrong?!" Frisk asked. Toriel gave them a funny look as to why they were greeting Flowey kindly, but they ignored it.

Flowey looked down. "I was up at Mount Ebott and I was looking at the trail and trying to think of a way to block it so no more humans would come through and fall, and then..." Flowey swallowed. "There was a human girl... and I asked her why she was there and she turned to leave the cave and she... she..."

Toriel ignited a fireball in her hand. "YOU CAUSED HER TO FALL?!"

Flowey cringed, obviously scared of his mother, even though she didn't know that he was Asriel. "N-no! I don't-"

Frisk gasped. "She was already looking, wasn't she? I came to see if the rumors were true, and when I fell, I wasn't trying to. There was a rock or something and I tripped...!"

Flowey nodded, still cautious of Toriel. "I tried to catch her but she was already gone, I really did try!"

Toriel made for the door.

"Toriel, maybe its better if As-Flowey and I go find her, she might not be as scared of me as she is of your attacks," Frisk quickly said. "I'll be right back, promise."

Toriel sighed. "Fine. But don't dawdle, and make sure you don't get lost." She glared at Flowey, who looked sad and terrified at the same time.

"Don't worry, I'll be safe with As-Flowey." Frisk began walking and Flowey actually followed, moving along like he was hovering above the ground but still on the ground.

After they were out of earshot, Frisk glanced at Flowey, who moved alone silently, staring at the ground.

"Is it okay if I call you Asriel?" They asked.

"Y-yeah, I'm just not completely used to it yet," Adriel replied. The monster trapped in a flower looked up at Frisk. "Why are you still nice to me? I understand you forgave me and everything, but... I still don't feel anything, I don't have a soul, I-"

Frisk blinked. "Are you hearing what you're saying? 'I don't feel anything?' You obviously do, you looked scared when your mom had that attack ready, and sad when she looked like she didn't trust you, and sounded genuinely concerned about the girl. What if you really DO have feelings?"

Asriel stopped and stared at Frisk. "What?"

Frisk grinned. "See? You're shocked now. Asriel, your feelings are coming back!"

Asriel had tiny tears gathering in his eyes. "I can feel!" He cried, and began laughing. "I haven't felt anything in so long, only a little bit when I... well, when you-know-what happened, and it's just so strange!"

Frisk knelt and wrapped their arms around the tiny flower, careful not to squish his petals. "You can feel!" they grinned.

Asriel smiled. "Thanks, Frisk. Now let's go save that human!"

They rushed through the Ruins to the second room with a patch of golden flowers like Asriel in the center. They avoided it and moved to the first room.

Frisk looked around and saw the bed of golden flowers cradling a small form. Asriel crept closer, carefully moving among the other normal golden flowers. He was only discernible when he moved or glanced back at Frisk.

Then a small green tendril, almost like a vine, sprouted out of the ground right where Adriel's stem entered the ground. It gently tapped the fallen child's arm, who twitched but stayed unconscious.

Frisk shrugged as Asriel once again turned to face theme. "We might have to bring her back to Toriel," they whispered.

Asriel nodded, and seemed to consider his options. Finally, the smaller tendril sank back into the ground and two much larger ones appeared to carefully lift the girl. Frisk stayed behind him as Asriel began going back through the Ruins, being extremely cautious while carrying the girl.

They reached Toriel's home and Asriel hesitated outside the door. "It feels... strange, just going in without permission. I mean, I know it's technically... my mom's house, but it still doesn't feel right."

Frisk nodded. "I'll ask if you can come in."

They ducked into the house and found Toriel already by the exit to the Ruins, waiting. "As-Flowey would like to know if he can come in. The girl was unconscious and he's carrying her, but he said it doesn't feel right if he walks in without permission."

Toriel blinked. "R-really?"

Frisk nodded. "If he can't, that's fine, he can meet us by the barrier."

Toriel shook her head. "N-no! Flowey can come in. And tell him that it was very kind of him to ask."

Frisk returned to Asriel and delivered his mom's message. They led Asriel through the house, who looked around at his former home in sadness and guilt.

Toriel gasped at the sight of the unconscious child that Asriel was carrying. "Oh, my!" She carefully lifted the child into her own arms, and Asriel withdrew the two tendrils. "Thank you, Flowey, for carrying her."

Asriel smiled, a genuine smile, at Toriel. "It's perfectly fine," he whispered.

Toriel led them through the exit to the Ruins, and they traveled through the Underground. Soon they reached the barrier and Asriel flinched as they passed through, and Frisk remembered the events of that day.

Toriel beamed as they exited the Underground and felt the sunlight on their faces. Asriel seemed excited.

It was only about a week since Asriel had opened the barrier, and the monsters all stayed camped out by the place where the barrier had been.

Asriel immediately hid behind Frisk's legs as they came into view of the monster's camp.

Sans, one of the two skeleton brothers, looked up and spotted Asriel, tucked behind Frisk. His white pupils in his eye sockets disappeared and his left eye closed blue and yellow as he stared at the monster-turned-flower. Then he stared at Frisk, who shook their head slightly, and Sans let his eyes return to normal.

"Ah, Tori and Frisk, you-" Asgore saw the human and his expression darkened. "What-"

"I think Flowey here can explain," Toriel said to the group of monsters.

Frisk stepped to the side, and revealed Asriel, who let out a tiny squeak of fear and tried to move back behind Frisk. They gently pushed him back into the open, feeling Asriel shaking as the monsters saw him.

"As-Flowey, don't worry, they won't hurt you, I won't let them," Frisk whispered.

Asriel nodded, still scared stiff, and told the group how he was trying to get a better look at the trail that leads up to Mt. Ebott, and was trying to figure out a good way to block the path. Then he explained how he saw the girl and how he had said he thought humans were done coming to Mt. Ebott, and how "I think I scared her." Asriel looked up at Asgore. "I really didn't mean to, I just wanted to ask her why she was there. She got scared and stepped back but she was already at the hole and then..." he closed his eyes tight. "She fell and I tried to catch her, I really did!"

Undyne snorted. "How? You're a tiny flower with no arms!"

Two of Asriel's tendrils poked out of the ground. Alphys, having been extremely scared and nervous the entire time, suddenly became curious. "Have you always been able to do that?" She asked.

Asriel let them disappear. "N-no, I just realized I could this past week."

Asgore was eyeing Asriel. "How do we know we can trust you?"

Frisk stepped in front of Asriel. "You can trust him. He's regaining some of his old traits, and he can feel again."

Toriel looked up at the setting sun. "Well, we'd all better get some sleep. Tomorrow, this girl and Frisk can bring us to a human village."

Author's End Note- Thanks for chapter 1! I have a few more chapter written already, but I don't know when I'll definitely be able to post. I'm pretty busy but can try to post at least once a week!

Have a sans-sational day!