Yanderes everywhere~ (a yandere sanscest multiship story)

Chapter 1: The nightmare begins~

Yandere is a portmanteau of two Japanese words. The first is yanderu, which means "to be sick," and the second is deredere, used here for "lovestruck." A yandere is often sweet, caring, and innocent before switching into someone who displays an extreme, often violent or psychotic, level of devotion to a love interest. But, what if there is multiple Yanderes for multiple people? The story begins with the black-teared skeleton, named killer. But, as he was getting prepped for school and such- he had no idea that a certain powerful skeleton was watching him, and that skeleton would do ANYTHING to get to killer. 

Killer hummed softly as he pulled his signature clothing items on, his black turtleneck and white shorts with the black line going down them- and the jacket that made a sans well a sans. Killer walked down the stairs of his empty home, feeling lonely but at the same time he had a ... uneasy feeling if that was the way to describe it? He walked over to the table where he would make a bowl of cereal- as normal. He had no idea how to actually cook anything, which was actually rather bad since he lived alone. Though, he had no idea that there was a certain skeleton who would DIE to cook for the black- teared skeleton. And said skeleton was watching killer right at this very moment. 

Nightmare watched killer get dressed, but it wasn't perverted! No, he was just making sure his love wouldn't trip or fall- that would be very bad! He couldn't stand to see killer get hurt. You see, at first when he felt these feelings for killer he wanted to kill killer- since he was causing nightmare to feel positive emotions. But now, if he thought that way he would mentally scold himself. How could he think this way of the beautiful skeleton? Over time nightmare grew more..Obsessed with killer. Heck, he grew obsessed with just his name! You could imagine how obsessed he would be over the skeleton himself. He just, couldn't get the thought of killer out of his mind. Killer had obscured his vision, wether it was on purpose or not - nightmare didn't care. He saw killer eating his cereal as normal, oh how he wished he could make killer a proper breakfast. But that would blow his cover, and he didn't want that just yet. 

Killer washed his bowl, getting a text on his phone suddenly. 

^Nightmare: killer, wanna walk to school with me? 

Killer felt his cheeks heat up a bit, the soft red dusting across them. He had to admit, he liked the goopy, negative skeleton. But he didn't know how to express his feelings 

Nightmare saw killers cheeks heat up a bit  from the text, which filled him with excitement. Did killer like him? Oh, that would make all his dreams come true! He saw killer respond and quickly opened his phone

^killer: yeah, sure. Got nothing better to do 

Nightmare could see he was trying to be casual, which only made his fantasies get wilder 

^nightmare: okay, be over soon.

^killer: alright, see you soon! 

 Nightmare felt his owns cheeks heat up at the cute response, or at least- that's how he interpreted the response. If anyone else saw it, it most likely would have been seen as an excited  response rather than 'cute'. Nightmare waited a few minutes before finally going down to killers door, seeing as he didn't want to alarm killer by knocking immediately. He may be obsessed, but he still is logical. He knocked on the water- worn wooden door to killers home, waiting for the answer until shuffling could be heard and a lock unclicked. Nightmare grew excited again as he waited for killer to come out, but coughed to regain his composure. Killer soon came out, with a bad slung over his shoulder and shoes on. Nightmare blushed lightly at the sight of killer, he could stare at killer all day.

Killer smiled gently at nightmare, which only caused his blush to get worse than before. Luckily for nightmare, killer hadn't seen yet since he was fiddling with the lock on his door. He finally got it to click and turned back to nightmare 

"Ready to go?" He asked 

"Yep, do you have everything you need? You didn't forget something important again, did you?"  Nightmare asked, teasing killer a bit. He loved to see killers reactions to his teases, because they make him a bit flustered 

And as prompted, killers faced heated up a bit from the tease and he growled a bit - but playfully 

"I didn't forget anything!" Killer replied, hugging as he crossed his arms. Nightmare rolled his eyes playfully to get killer a bit more mad. Which happened soon enough as nightmare earned a slug on the shoulder. Nightmare did fake whine which caused killer to giggle, and the two set off for their boring highschool. 

~Time skip~ 

Killer groaned softly as he walked the winding Halls of his boring high school, rubbing the back of his neck in annoyance as a little female- and yet annoying skeleton followed him. The girl had presented herself as Erica and killer had already found her incredibly annoying. Meanwhile, a certain goopy skeleton was watching, with such a murderous intent in his eyes- that if looks could kill, Erica would have been brutally slaughtered.

Nightmare was plotting the females death, to which he had quickly learned her name. Hey, he had to know the names of his victims. The worst part about it, was that this skeleton seemed to annoy killer- which made nightmare even more pissed than before. He had to think of a way to separate the two, and get rid of Erica. She was in the way of his love, and he couldn't have that. No, killer BELONGED to him, wether the black-teared skeleton liked it or not. 

NIGHTMARE WAS GOING TO MAKE SURE OF THAT..... KILLER IS HIS 

You've been filled with.....determination~

"Perfect....~"