Just to clear up some questions…

1. This is an AU where Toriel stayed with Asgore.

2. Corsiva is really Frisk, just with a different name.

3. Sans means without, so translation of the title, "Without Sans."

"I just don't get it!" Gaster yelled, his 6 year old son Papyrus overhearing. "6 days after his birthday, and he just disappears on me!" It had been 15 hours since Sans left on his walk. Papyrus looked at the time; 9:00 pm.

"Brother?" Papyrus questioned in a small voice picking up a picture of the entire family together. "Where are you?" He held the picture close to his chest.

9:00 pm; Ruins.

Sans was rocking the small child in his arms. He gave a small smile as the child yawned. "oh, you are just so precious, my little corsiva." What could he say? He was a sucker for children. Especially babies. He began humming the only human song he knew, as he used his magic around the home.

Fixing up a broken, dull, springed up chair, he realized it was a nice calming green color. The 2 beds revealed a king sized bed in one bedroom, which he assumed was the master, and another, much brighter "sled bed," in a child-like room. He noticed he was getting tired, so he fixed up the rest of the Masters and slept with the child in his arms. "if my dad were to find out, we'd both be dead. i don't want to see you dead little one." He yawned. "g'night my baby bones."

4 weeks had passed. Snowdin looked like it had been through a storm, even though it was physically impossible due to it being underground. Gaster was in full panic dad mode searching for his son. Papyrus wouldn't be allowed outside until Gaster would die. That was a new rule.

Ruins

Sans had befriended the other monsters in the ruins, and even came across a ghost who was willing to babysit the small child. The ghost's name was Napstablook, and he would constantly come by with different CDs that held "human enrichment videos." Sans just looked at the ones titled, "Lullabies."

Corsiva seemed to enjoy them and even Sans had a few favorties. Some of them were just the music to a black screen, like "You are my Sunshine." Some, animated cartoons, like "Everything Stays," and "Bright Eyes." Bright Eyes reminded him about Papyrus. I wonder how he's doing without me…?

5 months had passed and, by Snowdin standards, they'd pronounced Sans dead. Gaster refused to believe it. Papyrus had snuck out to the funeral for his brother and said a few words. The shopkeeper felt bad for the young one. He was acting the complete opposite of what he should've been acting like. He was like an agnsty, depressed teenager despite being only 6. His magic had gotten much stronger and unstable.

Ruins

Sans had found trouble getting Corsiva to eat. She refused to eat anything that looked like something she knew. She'd known about Froggits, Migosps, Moldsmols and Whimsuns. Sans was running out of options. "Need any advice?" A meanecing carrot asked. Sans checked it; Vegitoid.

"yeah, do you kno-" The skeleton started.

"Plant's can't talk dummy." Vegitoid flashed an mysterious smile.

Sans didn't want to have to deal with this. Maybe the monster doesn't know what I'm saying? It was true that some monsters had some sort of Allspeak among themselves, but others, like the Froggit and the Moldsmol families spoke their own language, heck, skeletons had created a secret language roughly based off of sign language that they called WINGDINGS or ?￢ﾜﾋ ? ﾟﾑﾎ?￢ﾘﾠ?￢ﾛﾆ. Perhaps this was one of them? Sans put his hands on his hips and tapped his stomach as he tried to think. The monster brightened and began to hop up and down.

"Eat your greens! Eat your greens!" The Vegitoid cheered.

Sans began to improvise a charades game with the Vegitiod. He made it seem as if he was cradeling something. "B-baby!" Vegitiod guessed. Sans pointed and nodded. He patted his stomache. "Hungry!" Nod nod. Sans made an X with his arms. "wrong?" Shake shake. "X?" Shake shake. "Won't?" Nod nod. Sans pointed to his mouth. "Eat?" Nod nod.

"Ah, well why didn't you just say so? Skeletons do know sign language correct? Well, I guess it wouldn't have been so much fun." Vegitoid gave Sans a collection of different baby foods. Starfait, Cinna-butterscotch (Probably for dessert. Sans thought), Carrots, Cucumbers, Popato, and many more.

'Thanks' Sans signed.

"Don't mention it, friend."