((This is an UnderFell/Undertale fanfiction. It has my OC named Sugar who was originally from the Surface, her "Papa" a monster who was missed when banishing monsters into the underground. She starts her long journey through the underground, meeting various characters from the Underfell AU. Most try killing her, some see her warmness and in turn, warm up to her. She hides secrets the entire time... Her past haunts her... she refuses to hurt others... But why? This is an adventure fanfiction with some romance, but that doesn't happen until the end. Who could the lucky monster be? This is rated FICTION M because of strong language, violence, and only for those that are mature. Enjoy!))

Her pink eyes would flutter open and groan lightly with a squeak. Her eyes would adjust to the darkness, the only source of light coming from the surface above. It had been a long fall and the little monster girl would sit up, seeing she was in a small pile of yellow flowers. She'd try standing up, pushing with her right arm, only to feel pain and wince. rrrr… I think it's fractured… if not broken. She'd use her left arm, stand on her back paws.

She was a strange monster. Her eyes were a bright pink and looked like large buttons with blue stripes over her eyelids, her nose was pink to but smaller and wiggled like a bunnies. She had small little feelers on top of her head and long bunny ears that flopped down. Going down from the top of her head, down her back, and down her long tail was a blue stripe. The rest of her fur color was an off white, though her tummy and chest had a light pink patch. Her tail was long and fluffy like a skunks, though she didn't smell like one. The only feature that wasn't as noticeable was her patagium (extra skin like a flying squirrel that lets her glide), which was only noticeable when she stretched out her arms and legs.

She'd walk around, listening to everything around her, most of it being silence. After she guess five minutes, she's hear a voice whispering. She'd follow it, walking on two legs and find… a flower.

"Um… hello?"

The flower would turn and hiss at her making a scary face. She'd squeak in fright, tail puffing up and jumping backwards. The flower would then look at her and examine her. She'd stay still and watch it as it'd disappear in the ground, then hear it pop up behind her.

"You're not from around here… are you? Are you one of Alphys's experiments?"

"Uh… who? I… I am an… experiment… but I don't know who Alphys is… I'm from up there…" The cotton-candy colored monster would say in a small voice, pointing to the ceiling.

"You came from the surface?" The creature would examine her soul, seeing is was a very, very pale light blue. Like a strange mix of human and monster soul. He guessed by the coloring she was patience. He'd look around quickly and remember where they were. "Nevermind. We can't talk here. Listen, we cannot be caught by the Queen. If she finds us, she'll kill us both."

Now she was scared. "Ok… Um… I'm Sugar by the way."

The flower would look at her. "Howdy, I'm Flowey." He'd then motion to follow and go to a very dark corner.

Sugar would run on three paws over to him and get down low. She was significantly taller than him, but he was definitely quicker than her. Especially since one of her paws hurt so bad.

The flower would see that this new monster he met was injured. He didn't know whether to trust her or not. She seemed innocent enough. He was about to ask her something when the queen would walk into the room, take a quick glance around, then leave to another room.

"Alright, follow me," Flowey would whisper, the little experiment following as quickly as she could on three paws. They'd get to an area with a bunch of spikes on the ground. Flower would look at Sugar and stop her. "Alright, first thing is first…" He'd make little white specks appear in the air and hit her with them, only for her arm to heal. "There are lots of puzzles here in the Underground. Monsters love them and typically put traps in them. Some, like this, are very easy. You just have to pull the switch."

"Ok. So where is it?"

"Probably hiding behind a set of vines. You go check, I'll keep watch."

Sugar would trot on all fours to some vines and look behind them, finding a switch. She'd flip it and the see the spiked floor disappear. "Found it!" she'd explain in victory.

"Nice, now let's keep moving!"

They'd cross and get to a doorway only for a frog monster to jump and attack at the experiment. "Oh! Goodness." She'd see options before her and look to her friend. "What do I do?"

"Fight! If you don't he'll kill you."

"But… I don't want to hurt him." She'd click the MERCY option, only to have to run around and dodge attacks from the Frogget. She'd get hit a couple times and groan.

"See, what did I tell you?"

She'd look at the flower and think. She'd click the ACT, seeing the option to complement the other monster. She'd smile. "You look so handsome today." She'd see the frog monster blush and tilt its head. The Frogget then hopped away on his own.

Flowey looked at the girl confused. It… Spared her? After complimenting it? "That was… different. You got lucky though. Try not to get yourself nearly killed next time!"

Sugar would rub the back of her head and smile. "Hehe… Sorry. I'll do better next time."

It would take nearly a day, going through traps, finding food that healed them from a spider bake-sale, running into various monsters and Sugar didn't fight them even once. She complimented, wiggled, and was nice towards them. The only one that really startled her was a ghost that was blocking their path. When he was pretending to sleep she tried to move him only for it to hurl a fury of insults. When she asked why he was down there he ended up saying he felt abandoned by his cousin who tried going onto become pop-star, though apparently he wasn't that good. She learned this ghosts name was Napsterblook and eventually calmed him down enough to give him advice and he left peacefully. Finally they got to the end of the ruins. They'd get to the queens house where Flowey couldn't really go inside due to the ground being made of hardwood. "You are really weird. Why didn't you fight anyone?! Didn't I tell you they'd kill you if the get the chance?"

"Yeah… but I didn't give them the chance. Besides… I'm… not sure if I could kill anyone… where I'm from, everyones so nice to me… though they do treat me more like a pet bunny. Killing someone is… something I don't want to do."

"Pfft. You'll die with that attitude. Anyways, you should go the rest of the way without me. I won't survive out there anyway."

"W-What? No! Please don't make me go alone," Sugar would say looking at the flower.

The golden flower would sigh. "Sugar… down here it's killed or be killed. With a soul like yours, you'll be a target, especially to Alphys."

"Even more of a reason to stick together. We can watch out for each other. I…" She'd sigh. "I can try my best. I have one ability you haven't seen yet…"

Flowey would look at her. She looked scared, and frankly… she did seem very nice and trustworthy. Very oblivious though, which he knew meant that she'd probably be killed very quickly without help. He'd sigh and open his mouth to answer.

"Well, well. What do I have here?" a calm voice would say behind them. "A monster with a colored soul and a talking flower? This is quite lucky."

Sugar would turn around and see a goat-lady in dark clothes that were tattered, dust on her. "Um… Hi."

"You idiot, run!"

Sugar would look up at the goat lady and see her floppy ears and smile. "You have ears sort of like mine." She'd wiggle her ears and smile.

The queen would look at the small girl confused. She wasn't afraid and was being very… cute. "I… I guess we do."

Flowey would watch their interactions, confused. Why are you still being nice?!

Sugar would swish her tail and smile looking at the queens eyes seeing that they looked very tired, her fur very messy. "You… look tired and need a makeover. Want me to brush your fur?"

Again, the queen was confused. She liked this girl already. She wasn't like other monsters that attacked her and not annoying like the pests down here. I think I'll keep her. "Alright child. I'll make us some pie and while it bakes we can do that."

"Can my friend come too?"

The queen would pause, looking at Flowey, then nod and point to a flower pot. She'd then walk towards her house, keeping an eye on the two monsters.

Sugar would smile and look to her friend. "Is she the queen? She doesn't seem bad."

"It's probably a trap… But that pot is the only way I can go in with you," he'd say with a sigh.

"So you are going with me?" She'd say with a smile, eyes shimmering.

"Yeah. Without me, you'd die. … You think of me as… a friend?"

"Of course. All the people I meet I'm friends with. Even all the Froggit's and Whismer's. They just needed to know there is someone nice still out there."

Flowey looked confused and sighed. He'd watch the little monster run on all fours to grab the flower pot and fill it with soil. He always saw her smiling, which was nice compared to the dreary atmosphere he lives in and came to know. He'd go into the ground and pop up in front of her. He'd watch her finish filling the pot, seeing her white paws were now really dirty.

"It's done. Need me to help you into the pot?"

Flowey would nod, though became a bit nervous. He'd watch and feel her dig around his roots, though was careful not to touch them directly. He'd feel her lift him up and put him in the pot, putting soil over the roots. "You good with plants or something?"

"Yeah. I have my own garden at home that Papa and I built." She'd suddenly realized something and look to her friend. "Am… I ever going to see Papa again?"

Flowey looked at her and then down. "Well… I don't think I should lie to you. There is a barrier that keeps all us monsters inside. The only way out is to kill and collect the colored souls of humans and break the barrier. Ever since the end of the war between human and monsters, we've been suck down here. It's possible maybe a few are still on the surface… like you. That's why we monsters fight each other, to get stronger…"

The young experiment looked to her friend. "But… Humans aren't all bad and have changed over the many years… I'm friends with a couple. Some are still mean, but not any reason to kill them…" She'd pick up her friends pot and put them on her back. "Guess I won't be seeing Papa for a long time."

Flowey saw Sugar wasn't smiling. He didn't like it. "Hey, maybe we can find a way out. I'll join you where-ever you go. Ok?"

She'd smile at him and start walking. "I'll count on it."

Sugar would trot to the house and climb the stairs, using her tail to keep Flowey balanced on her back. Once inside she'd take Flowey into her paws and walk on two legs, not wanting to dirty the floor with muddy paws. She'd find the queen in her kitchen making something. "Um… Mrs. Queen, if there anywhere I can wash my paws?" She'd put Flowey down and show them to her, her white paws with blue pads covered in brown and black.

She'd look at the little one putting her paws and arms up at her and smile. "Yes child. You may use the sink. By the way, my name is Toriel."

"Ok Queen Toriel. Thank you." Sugar would pick Flowey back up and go to wash her paws. Afterwards she'd to the sitting room and look at the books.

"I know where the exit is. We should head there now."

"I can't leave yet. I told Queen Toriel I'd brush her fur."

"Didn't I tell you it's just a trap? We need to keep moving."

"Please Flowey, can't I stay a bit longer to at least do what I promised? Afterwards we can leave, alright? I pinky prom…." She'd pause and giggle. "Sorry, I forgot you don't have a pinky."

Flowey would roll his eyes and sigh, giving up the argument.

A few minutes later, the queen would enter and sit in the big chair she had in the room, holding a brush. Sugar would have been on the floor and reading to Flowey one of the various books from the queens collection. The Queen would pick the little monster girl up and place her in her lap.

Sugar would feel the brush go against her gently and she'd smile. "Hey! I said I'd brush you!"

"I know dear child. I just thought I'd brush you first. Your fur is lovely and I wanted to brush it. After that, we'll have butterscotch-cinnamon pie, then you may brush my fur," the goat queen would say.

"Fine, but I don't really need it," Sugar would lie down and relax on the queens lap. She'd enjoy the feeling and nearly fall asleep, but Flowey would wake her up.

The queen would bring them each a slice of pie and Sugar would eat hers happily while Flowey was more skeptical. Toriel would eat her piece of pie and take the plates away when everyone was finished. After that, she'd sit down on her chair and Sugar would jump onto the arm of the chair, then onto the back and start brushing out her fur that she could see. When she was done, the queens fur was smoother and Sugar had to empty the brush about four times.

"You look super pretty Queen Toriel."

"Thank you my child. It's been so long since I've have company."

"Flowey and I can always come visit you Queen Toriel."

"Oh, that's not going to happen. You'll be staying with me here."

Flowey would look at Sugar and fold his leafs in the 'See, I told you.' fashion. The young girl would look to the goat woman. "No Queen Toriel, I have to go, I have to find my way back home."

"No you don't my dear child. This shall be your home and to make sure you can't leave, I'll break the entrance so you can't escape," and with that the queen would get up and rush towards the door.

"Come on Sugar! We have to stop her, or there is no way you'll be able to leave!"

She'd nod and grab her friend, putting him on her back and bolting for the door. Flowey would give directions as if he knew the place himself, Sugar gaining on the queen quickly due to her speed increase by being on all fours.

"Dear child, if you wish to leave, you'll have to get through me or die trying!"

With that their battle would begin. Toriel would fight fiercely, throwing fire in many directions. Sugar would use the walls too her advantage and run up them, the pads in her paws glowing blue, then jump off to glide to another. She'd jump and get hit and burned many times, blocking Flowey from other attacks so he wouldn't get hurt. She'd be huffing and puffing after a couple minutes. When the small mix and matched monster had her chance, she'd press the FIGHT button. The thing is, her option then became two and she chose the one she was best at. She'd take in a deep breath and make such a high pitched noise it hurt Toriel's ears and stunned her. She'd then smash the MERCY button and run, Flowey on her back. They'd slip through the door.

"I'm so sorry Queen Tori! I'll visit when I can! I promise!" she'd yell behind herself, looking back as Toriel looked at her upset and obviously angry.