Together in Insanity (Yandere!Sangwoo x Reader)

Chapter 1

(From first appearance, this chapter seems to have a lot of "slut shaming." This is purely due to my lack of editing and imprecise word choice. The point of this degradation is to show how the reader looks down on everyone for any reason and degrades them to the lowest in whatever way she sees fit, and a possible petty jealousy to the girl. I will come back and edit this to make it be edited to better show that its not about whether the girl is a slut or not but that the fact reader has an extreme superiority complex.
Thank you,
-Dirty)

People were monsters. They made that clear to you from the very beginning. From the moment you breathed-no, before then-you were being conceived in the womb, your life was hell. Yes, even before you were cognitive or aware of existence yourself you were dealt the cruel hand of man.

You fought against them from the beginning. Day after day, week after week, year after year you pushed back on them to survive until finally you were rewarded for your efforts. Now they were the ones cowering in fear from your gentlest touch. It was so deliciously pathetic. They almost seemed to beg for their death.

Now, you weren't overzealous. You knew that you were no savior or angel of death or anything special. You simply did what you did for fun, because you simply could. Anymore, you couldn't even control it. It was a yearning need like hunger or thirst; one you could never deny. Life was impossible without it and going too long drove you to insanity.

"Hey Y/n!" A man waved you over to the group of people you knew from college. You put on a smile that appeared genuine but really you could care less. It was all just for the perfect act.

"Hi. How are you guys?" You smile sweetly and sat down, maintaining the innocent act flawlessly. Even you were almost enchanted by your lies, but you knew better.

"Amazing! Y/n this is Sangwoo. Remember I told you about him? Sangwoo this is Y/n." the only other girl in the group squealed in her whiney voice while clinging to the said man's arm.

Your eyes immediately fell on the new face at the table. There was something about him. Looking into his eyes, you saw your own puzzled thoughts reflected in his face even under that perfect smile of his.

"Hi, Y/n. It's nice to meet you." he said with a gentle smile but his eyes never broke the intense gaze.

"Nice to meet you too, Sangwoo." You smiled back, not breaking the stare either. Both of you had a feeling about the other.

"Are we going to go to the movie then?" one of the other people in the group asked. He was a tall male with dark hair and eyes. The man wasn't particularly healthy and was known to be a loud-mouthed know-it-all. Nothing was really important about him.

"Yeah, if we don't hurry now we're going to be late!" a much more hyperactive blonde said. Her outfit was a revealing bubblegum-pink shirt and a ridiculously short skirt. It was clear she was trying to impress the stranger. If you would have to sum her in two words, they would be idiot slut. She didn't even deserve proper grammar in her insult.

The slut was still clinging to Sangwoo's arm, acting all giddy. The tall brunet pretended as if he felt nothing while walking to the movies. You followed close behind, maintaining a wary eye on the newcomer. Something about him you didn't trust.

"What do you think of him, Y/n?" Another member of the group with short brown hair fell into step beside you. He was one of the less infuriating people in the group but you didn't always care for his presence either. He had also been the man to wave you over.

"Of whom?" you ask, although there was really only one "him" he could be talking about.

"Sangwoo." His voice was quiet so only you could hear.