Yandere (male or female)

This chick just constantly follows her senpai. She even licks everything that he put his mouth on.

Kurosu discovers that his neighbor is a mirderous psychopath...and they end up dating

A truly psychological manga. In the end, i'm not even really sure who the yandere is since the two main females both act crazy. A guy gets seriously screwed up in the head all thanks to this one girl. It certainly made me rethink a lot of things. Don't read this if you are looking for something sweet. Read this if you're looking for something salty and bitter that stays on your tongue even after you rinse your mouth out.

I didn't really get past the first chapter. I don't know why. Anyways, the yandere is the guy

Mikami is possessive of An and wants to monopolize hed completely. An wants the same thing, but it only came off as cdeepy with Mikami in the first 2-3 chapters.

A guy believes that the girl he likes will listen to everything he says and then still like him even after all of that

I think Cockroach fits the yandere roal