A/N: I am changing the book. not just sans x reader stuff, but any character! yay! that's so I can complete Echo_Eli_Athraithe 's request (and any future requests).
"Y/N? you spaced out again...more than often, too,"
"I know Frisk...its nothing...c'mon, the game's starting," you say, following frisk. Monsters were free, everything was at peace. But not for you. You were having flashbacks of...somewhere...somewhere you belonged to once before. But you didn't know where. Sans had disappeared, and found him.
"I'll be back," you say. You follow Sans. This never happened in any other timeline...
He was gone.
"what the..." you walk around in the clearing. No sign of him anywhere. You walk back to everyone else. They welcome you back to the game. The whole time, though, you weren't concentrating. You heard a portal open not far off. Just as well everyone stopped playing to eat. You wander off again to see Sans. You smile, but it disappears when you see...your sans? But not...you can't make out what they're saying. You approach them cautiously.
"Would you like to come with me?" says the other sans. You stand between the two.
"why does Sans have to leave?" you ask. You were curious, it was your nature. Partly your personality, partly your soul. You had a half determination soul, half (soul colour of your choice that isn't determination). The reason? An accident with Chara.
"*sigh* long story short, he only has half a soul," says the other sans. You frown, turning to your Sans.
"how...?"
"don't have time to explain, kid," he says. You turn to the other sans.
"I'm going, not him," you say. Once you made up your mind, little could change it. "he only has half a soul, he could get killed! Me, however..." you summoned your red and (s/c) soul. "let's just say it would be better for me to go,"
"Sans? Are you ok with this?" the other sans asks. Your sans nods.
"Alright. See ya round, kiddo," your sans says, before everything turns to white...
-meanwhile-
"Here we are. The first pacifist timeline," says the first figure says. "People are a bit rude, but they managed to be happy thanks to a little human and a stupid flower,"
"Thanks nightmare," says the second.
"...Have fun," Nightmare says, before disappearing.
-back to you-
"Oww...now I'm freezi...SNOWDIN?! HOW THE HECK-"
"Keep your voice down!" the other sans says. "I'm Ink, by the way,"
"Y/N," you reply. "Where are we and...how are we gonna get Sans' soul back?"
"Follow me," Ink says. He leads you through what you recognise as Snowdin with...changes. Everything was darker, in an edgy sense. You continue through the cold, only to see two other sanses.
"How...?" you ask yourself.
"Huh. You're in my way," says...one of the two you swore you've seen before. "Get outta here,"
"Wow. What do we have here..." says the second. "Hey, fluffy asshole. Nice knife,"
"What did you call me?" asks the first. You and Ink approach the two people.
"Ha. Whatev. Waddya want?" he asks.
"Ink," you hiss. "I recognise...one of them,"
"You do? But you're from...nevermind," he says. As you turn back to the two others, the one you seem to know throws a knife at the second, barely cutting the jacket. The knife lands in the snow before disappearing.

YOU ARE READING
{requests OPEN!} Undertale Au Characters x reader One-shots
FanfictionHello and welcome to my very first book! This is undertale AU character one-shots. I will allow requests. Highest rankings: #1 in Inktale as of 2/07/2018 - 12/07/2018 #305 in sans x reader as of 13/07/2018