A/N: Hello, everyone, and welcome to a new story that is currently in the works called Soul Manifesto! :D It is indeed Undertale related, because I am now Undertale trash. ;P But do not worry, I will update my Mario and FNAF stories once I'm feeling up to it. I feel my work is much better when I am feeling motivated to work on stories rather than rushing on them. :n) I hope you understand.

Anyway, as we all know, all of my stories have some sort of AU built within them. :D This one is no exception, but it's kinda also my headcanon. Here are the notable differences from the canon storyline:

1. Sans is the younger brother in this one. Papyrus is older, and he is W.D. Gaster's biological son, while Sans was created artificially in a lab. So, in short, Dadster and Big Bro Papyrus. :D
2. One monster year is equivalent to five human years. Keep that in mind. (For example, Papyrus is two years old in this chapter. In earth years, he's ten years old. :) Why? Because I want it to be. Just roll with it.)

That's about all I have for now, but if needed, I'll edit the differences. Enough being said, I hope you all like this story! Please review, it fills me with determination to keep posting! ;P

"Papyrus, dear, smile for the camera!"

"Nyeh!" The two-year old skeleton smiled brightly as he waved his little arms at the camera that his mama was holding. His face had bright red tomato stains on it, and his clothes were no less cleaner. A few limp spaghetti noodle stuck to the top of his bare skull. "I smile, mama! Look, look!"

"I see! You've got quite the lovely smile, dear!" Calibri laughed as she snapped a couple of photos with the camera. The sun shone brightly overhead on the mountain they lived on, making Papyrus's face shine all the brighter. Oh, what a delightful skeleton child he was. Full of happiness and energy, he was the light of Calibri and her husband's lives. He was just so pure and innocent, and never judged anyone harshly. Rather tall for a skeleton his age, but it seemed as though he would inherit his father's height.

Speaking of her husband...

"Gaster, dear, don't you have something to give to our birthday boy?" Calibri called out. "Now that he's finished his spaghetti, I think it's time for his present!"

W. D. Gaster suddenly popped into view, his arms carrying a present behind his back. His smile was stretched into a wide toothless grin. He did have two long cracks running up and down his face as a result of his younger days, but it didn't bother Papyrus or Calibri one bit. "Why, I believe I do, honey!" he said as he trotted over to Papyrus's side at the table. "It's something very special!"

Papyrus put down the plate of spaghetti he was eating (it seemed as though it was the only food that he would never get tired of eating) and looked over curiously. "Present?" he exclaimed. "I want! I want!" He made grabby motions for the present that he knew was behind his father's back. He was so excited that he didn't even notice that his mother was cleaning the tomato stains off his face and his clothes.

Gaster held up a bony finger. "Now, now, son, what do you say when we want something?"

Papyrus pulled his little arms back and pulled on a pouty face. He sat in silence for a second, trying to remember what his parents had taught him, then hesitantly said, "Please...?"

"Ah, there we go! Good job, Papyrus! Here, this is for you!" Gaster grinned as he held out the small gift wrapped in orange paper with a bone pattern on it.

"Nyeh-heh-heh!" Papyrus giggled excited as he took the gift and immediately started tearing off the wrapping.

Calibri and Gaster watched as their son's eyes nearly doubled in size as he stared at what they had given him. It was a long, fluffy scarf, beautifully handmade with tiny ruffles at the end. It was made of the softest stuff Calibri could find, and the two of them crafted it together.

Papyrus let out an exuberant squeal as he hugged the soft material to his chest, overjoyed. "It's a scarf! It's a scarf! So fluffy!" he exclaimed. His mama always wore a green scarf of her own, and he was so happy that now he got to have one that looked just like hers, only a different color. He unraveled it and tried to put it around his neck, but only succeeded to wrap it around his head.

Calibri giggled. "Here, let me," she said as she took the scarf and wrapped it properly around his neck, making sure it was snug. "There you go. Now you'll be all fit for when winter comes around the corner."

Papyrus seemed to have stars in his eyes. "Yay!" he gushed as he hugged the scarf to himself.

Gaster, always a stickler for manners, did hold his hand up with a knowing smile and say, "Now, Papyrus, what do you say to your mother?"

"THANK YOU, MAMA!" the little skeleton instantly shouted out as he jumped out of his chair and hugged her tightly. Then he also reached out and hugged his father just as tightly. "Love you!"

"Heh, we love you too, Papy," Gaster said as he hugged his son back. Seeing the camera on the table, he took it and held it out in front of his family. "Smile once more, everyone!"