AN: Hi there. I have no idea if there's a regular UT version of this but I don't care. I might do a fully UT version that's not got the HP universe in it but… Nah! I don't wanna! The non Xover one's called… UTR, Undertale Revolution
Long ago… Humans and monsters lived together… You know the rest of the story right? Well… No you don't. Long before the Great War the two races found that the SOUL had an aspect that could avoid any true battles… All humans and Boss monsters had SOUL songs… But it was revealed that all monsters had a song, tapping into that it was discovered that dancing was a much more effective style of doing anything, finding a song that matched with your own would allow the two to get closer, platonically, romantically or anything really… After a while the humans and monsters fell apart when a pair of monster and human found that with a special type of dance they could destroy Soul songs. In order to save both races the monsters had the Humans seal them underground as the dance could only be done by human and monster... Over time children that were hated for the power of their SOUL's found the underground… This is the story of one of the children…
They looked around as they held the flower in their arms… They had used their dance together to SLAUGHTER everyone they met!
"Hey there… I know you're gonna win if I try to fight you with my dance… But would you mind allowing me one anyway?" A skeleton asked them sadly.
With a nod they set the flower down by a pillar and danced with the skeleton.
"Thanks. By the way… Most humans come down here to Dance in piece, but you're fighting everyone and dancing but a single dance. It really doesn't make sense… But I'm a simple skeleton, how could I know?" He mentioned as the dance ended. "But… If you wanted to try again and dance with everyone you meet… You could just stop dancing and let the dance… Kill you, but I'm fine if you don't…" He told them with a sad smile. They stopped slightly and nodded, letting go of the skeleton's hands and watching as the movements of the skeleton cut into their SOUL…
RESET
A child fell down into a pile of flowers…
A skeleton woke up in his bed to music… Smiling he got up and looked at a headband. "Nah… Not yet." He decided walking away from it and downstairs. He and his brothers were planning to test something… If a three person dance could be done. Looking around he frowned. "Great… They forgot." He muttered. "Guess it's up to Ton to find the two idiots." He decided walking outside.
"Wanna dance? I… I only really dance with my Bro's so… It'd be fun." He heard Sans say.
"Sans?" He called out confused.
"Quick! Behind that conveniently shaped lamp." He told someone worried
"Who are you talking to…? You forgot about the dance." He asked confused.
"Oh sorry… I forgot, and Paps said he'd tell you we had to do work today." Sans explained.
"Oh... Hey is that… A… Tutu behind that lamp?" He asked.
"… No?"
"It's the human isn't it?"
"Yes"
"Run?"
"They're after pacifist"
"Good. They can come out now" He said.
Slowly the Human's face appeared from behind the lamp before hiding again.
"SANS! TON! IT IS TIME TO DANCE!" Papyrus told them excitedly.
"How about… Instead we try dancing with someone new?"
"SURE! WHO?" Papyrus asked.
"The human hiding behind the lamp. Come out kid" He told them.
Slowly the human came out from behind it.
"HELLO HUMAN! WHO WOULD YOU LIKE TO TRY AND DANCE WITH FIRST?" He asked…
You stop to think, before choosing Ton
"AH A GOOD CHOICE! HE IS FAIRLY EASY TO DANCE WITH SINCE HE USUALLY ADAPTS TO HOW OTHERS LIKE TO DANCE! IF NOT THEN IT'S EASILY ADAPTABLE!" Papyrus told them.
"Ready to start?" He asked holding out a single hand. Nodding they took it and started to dance with him. The dancing quickly became similar to that of a ball dance. "You know… Papyrus is the only one who doesn't remember… Mind doing us a favour and helping us keep it that way? Me and Sans don't want him to know…" Ton said quietly. They nodded. "Thanks. Let's kick this up a notch." He decided as their dance became faster and much more rock based, much more random and crazy, at first they had trouble keeping up, causing the dance to hurt before they managed to figure it out and merging into the dance. "There we go… I have two styles actually. The ball one, which is my regular one, and the rock one, which is the one I do when I'm the most serious." He mentioned.
After they had danced with all the skeletons they went into Snowdin with them. They danced with some of the monsters happily before entering the Skelebro's house.
"You know kid… You're great and all at dancing but… Ballet isn't used much down here. I could see when my bro switched styles it took you a long time to figure it out. So what we're gonna do is make you more adaptable. Or at least a little… Can't let you hurt yourself too much can we?" Sans decided.
Five hours later
The human collapsed on the ground exhausted after so much dancing. "Well… You did about as well as I expected but better than I had hoped… Just a few more times and you'll be adaptable as hell" Sans told them.
"Hey… Human… You mind coming over here for a moment? I wanna ask you something." Ton called out worried. They headed over confused. "Thanks. Now… Look, just… Don't hurt Paps… I don't mean just Genocide, I meant emotionally. You're the first non-skeleton he's danced with in years so… Just be nice to him ok?" They nodded understanding.