Reccomend some horror manga

Doubt

It's a psychological mystery and horror manga. Every chapter will leave you cliffhanged and make more and more questions for you to think.
Sometimes I was even afraid to turn to the next page.

Here's a description:
There's a game going around Japan called 'Rabbit Doubt'. The premise of the game is that all of the players are rabbits in a colony, and one amongst them is randomly chosen to be a wolf that infiltrated the group of rabbits. Every round, the wolf kills off a rabbit, and every round, the group tries to figure out which of the rabbits is actually a wolf in disguise. Sometimes the kids who play this game decide to meet up in person, and Yuu, Mitsuki, Rei, Hajime, Eiji, and Haruka have done just that. Unfortunately, one of them has decided to take on the mantle of the wolf and has already killed once. Who is the wolf, and can they be stopped before everyone meets a very unpleasant end?
-MyAnimeList.net

It's not long - only 21 chapters.

Ludwig Kakumei - I strongly recommend this! Awesome piece!

"In this grim and realistic take on classic fairy tales, Prince Ludwig, a female corpse collector, is ordered by his father to find himself a wife more suitable than the women he often brings into the castle. Along with his servant Wilhelm, they travel across the land in search of fair maidens from classic stories in hopes of finding Ludwig a wife."

Fairy tales like You never read them before... >:)

Lucky Star

Fucking spooked the guts off me

I recently started reading Doll's Fall, which is by the author of corpse party. Only nine chapters have come out so far, but it's an interesting read.

Sorry I got nothing.