Ignoring his comment, you snarled protectively. "You don't know anything about me. Now leave us alone, we don't want you here."

Sans laughed, returned to his straight posture. "Looks like Little Miss Lost Soul doesn't have her memories either."

"Just leave her be Sans. (Y/N) is at peace here. Let us share this happiness in quiet."

Something in your stomach twisted and you looked at Toriel. It was a lie. You loved to be here with Toriel, weaving crowns and feeding the animals, but something lingered in your mind. Something was missing, something important. You needed to figure this out... but not by him.

"You don't have anything to offer me. Just go away." You said in a quiet tone.

Toriel looked at you with concern, recognizing the confusion in your voice. Sans seemed to recognize the emotion to, but turned away.

"Fine, I'll leave you be." He said curtly.

You looked at him in awe, surprised he would give up so easily. He turned just enough to glance at you. "But I'll be coming back for your answer."

"My answer?" You asked.

Sans nodded. "Whether or not you'll come with me."

Gritting your teeth, you yelled. "I'LL NEVER-"

"For now I'll just leave you with a little sample." He cut you off.

He snapped his skeletal fingers and smirked. "See you then Lost Soul."

His figure dissolved into a shadow and he disappeared. As soon as the last speck of him disappeared, excruciating pain lanced your head. You screamed and crumbled to your knees.

Why would this make me want to be with him?!

Suddenly it numbed, and you were left shaking slightly. Cautiously, you opened your eyes, one at a time.

The area around you changed. The plants and animals had morphed into a snowy blizzard, only vague shapes to give you some sort of direction. Despite the biting cold and near blindness, you felt a warmth in your chest. You felt... happy. Your voice rang out in a clear tone, child-like enthusiasm in your words. It now occurred to you that you were merely a passenger to these events. You had no power.

"Come on Frisk! We'll be late if we don't hurry up! According to Toriel, Pap's spaghetti is decent tonight, and I'm starving." You yelled.

From the frosty winds, you watched a child appear. He wore a blue and purple striped jumper. His eyes were squinted into thin lines in an adorable manner. His skin was tanned but not weathered by sun in any way. His brown hair was messy from the wind and an oversized blue jacket was wrapped around him. He smiled at you, grabbing your hand. "Okay (Y/N), let's go!"

You led the way towards a large house. It seemed to be an ordinary two-story but it seemed especially warm and inviting in some way. Outside the house, two mailboxes stood. One looked almost new and the other was damaged by the surplus of mail sticking out of it. The overfilling one was labeled in blue letters, Sans. The pristine and empty one was labeled with neon orange letters spelling Papyrus.

You rolled your eyes at the full one like it was an old joke. It felt funny to look at. You opened the door of the home with a key from your pocket, swinging it open to find a congregation of smiling monsters. The Frisk child released your hand and dove into the mess, giggling.

Your eyes followed him and a quiet giggle fell from your lip. A tall fish woman threw an arm around you and pulled you into a side hug. She wore dark jeans and a black tank top. Her eyes were yellow orbs, one hidden from view by an eyepatch.

"Took you long enough punk! The snow was getting intense. We thought you wouldn't make it." She teased.

"Oh come on Undyne. I'm not that idiotic. I was keeping a close eye." You retorted.

Undyne chuckled and released you. You moved on to a pair of monsters. One of them was a small yellowish dinosaur person wearing a white lab coat over plain black clothing with thin glasses. The other was a robot wearing heeled pink boots and pink attachments. The robot was stunning to anyone that could see properly, but you didn't feel any romantic attraction to him. You smiled and waved at them.

Taking notice of you, they turned slightly towards you and waved back. "Finally (Y/N)! It's New Year's Eve, you should be better with your timing by now darling!~" the robot.

"Oh leave (Y/N) alone M-Mettaton. Not everyone has the management s-skills of Underground's biggest star."

"Alphys, you flatter me." The robot cried, posing dramatically.

You rolled your eyes and then your legs carried you towards the kitchen. As you entered, you found two occupants. Frisk was talking animatedly with a tall skeleton. He wore battle armor rimmed with red and tall red boots. His shorts were a deep blue and a tattered looking scarf was wrapped around his neck. A pink 'Kiss the Chef' apron was draped around his front as he argued with Frisk.

"Oh come on human! Just one teaspoon of glitter.... It's make the spaghetti sparkle!"

"No Papyrus! Glitter isn't edible."

"But human..." Papyrus whined.

Frisk glanced at you and smiled. "You tell him (Y/N)! Right now we need your cold words so we survive."

Chuckling, you walked to Papyrus and placed a hand on his shoulder. "Sorry Pap, but the kid is right. Us fleshy beings can't digest sparkles. It could make us sick, and if we ingest too much it'll take a death toll."

Papyrus gasped loudly and smacked the bottle of sparkles on the counter. "That would be terrible! Fine, you've twisted my arm. I shall not put glitter in the spaghetti."

You sighed in relief and Frisk have you an approving thumbs up. "Come on Paps! Get the food out here, we're getting anxious to taste some edible pasta." Another voice called.

It was too familiar, you knew who it was. But how could he be here? You walked to the living room carrying two plates of freshly played spaghetti. Once in the living room, you handed a plate of spaghetti to the owner of the voice. Sans stood in front of you, smiling mischievously.

Your heart stopped as you looked at him. This had felt so familiar. Seeing the Reaper figure had seemed familiar. You'd seen this before. This was a memory. You were reliving a memory.

This Sans, the past Sans, was wearing basic clothing. A pair of black basketball shorts covered his legs along with pink slippers. His torso was covered by a simple white t-shirt and the thick blue jacket Frisk had been using earlier.

"Thanks (Y/N), you're the best."

"This is wrong." You said quietly.

The setting around you shuddered. Sans' face dropped as he looked at you. "What do you mean (Y/N)?" He asked, still sounding like this was the most pleasant thing he'd ever done.

"These cant be my memories. The Sans I know, the one I met, he's not you! You're not him!"

"What are you talking about?" Sans asked again. "I am your Sans. The one you remember, in your past."

"My past..." You muttered. "My memories... why are they missing?" You asked.

The surroundings froze mid-action. No longer a memory, you looked around, bewildered. "Who are these people?!" You asked, fear in your veins.

Sans' pleasant face wavered, for a few moments turning to one of torment. His words echoed out of sync with his mouth.

"Sans?! What's happening?" You asked.

Sans' entire body rippled, then infecting the ground like a virus. Your own body flickered as well, shifted and moving between positions. Sans' body fell and he was now leaning over you, your body limp. A hollow coldness filled your body, eyes dilated and staring off just past Sans face.

Luminescent blue tears fell from his eye. His hands were covered in red blood as he attempted to hold shut the wounds that littered your body. His grin had turned into a sob. Papyrus' scarf was knotted around his neck. This felt right, but it was so wrong. You were cold, like you were dead.

Sans sobbed into your shoulder, muttering incoherent words. "Sans, how-"

Your throat pinched and your eyes fell shut. The lancing pain returned and you fell back into your body. You opened your eyes once again to see both Toriel and Sans, the death one, sitting over you. Sans smiled maliciously, one eye socket emitting a pungent plume of smoke-like substance. Around his hand spun black magic. He snapped and it dispersed promptly.

"Wow there kid, you almost did something real dangerous." He teased.

You shot up, tears decorating your face like Christmas lights. Fear and pain replaced the blood in your veins as you tried to shrink away into the shrubbery.

"My memories... What was.... Who am I?" You asked. "What happened to Sans?"

Toriel reached out towards you gently but you winced away. "Who am I?" You repeated.

Sans sat in front of you, glancing at you, then Toriel, then back at you again. "Well (Y/N), you're something I like to call... a Lost Soul."