Unknown to the world, aliens have begun to invade people's bodies. A young race car driver named Toshio was contracted by a mysterious organization for a "test" for money. That test turned out to be a hellish training to become a Zombie Hunter. Toshio decided to return to a normal life instead, but soon was confronted by the harsh reality of a Zombie Hunter. Surrounded by shallow figures and aliens, Toshio accepts his new life as a Zombie Hunter ...

(mangaka never finished the story)

A tale of obsessive love and constant pursuit, told over a 1000 years.
Escaping from a brother who had just ascended the throne, Yoshitsune, along with his servant, comes across a house in the middle of a desolate mountain. Oddly enough, only a young woman lives there, who seems to possess a very dark and ominous past.
This long journey of more than a thousand years focuses on our main protagonist Kurou. It can be somewhat confusing at the beginning, but once you understand the plot this story can be quite entertaining.
The main thrust of the story goes like this: Kurou meets a beautiful woman by the name of Kuromitsu, and begins a relationship which transcends life and memory. Kurozuka tells the tale of a journey undertaken by immortals, and those who chase after immortality.
The majority of this story takes place many centuries in the future, after Kurou has been separated from Kuromitsu. Having lost almost all of his memories, Kurou seeks to understand why he cannot die, to rediscover his identity, and to find the woman that haunts his dreams.

Deronga Five Alpha is a dying unstable planet which according to studies, used to be a very lush planet with all kinds of different species. The current state of the planet is a horrifying place where vicious carnivorous creatures fight in the “survival of the fittest.”

Captain Bagures, the leader of the research spacecraft, is a cold and cruel woman who, despite the warnings, unnecessarily sends a military team down to the planet for research. The end result was a catastrophe with the team being slaughtered by the creatures on the planet. The leader of the team, Cannon, vows vengeance on Bagures before seemingly dying.

Jump to 20 years later, a spaceship comes near Deronga Five Alpha to see the end of the planet. As the planet explodes, a foreign object attaches itself onto the spaceship. As nothing can survive a planetary explosion, the crew investigates the object only to find out it is one of the creatures from the planet Deronga. As the story progresses, the creature goes into a rage after seeing Bagures, now an extremely important person in the military, on the monitor screen. Could this creature be Cannon and how do you stop something that can withstand a planetary explosion?

Doctor Mephisto is a man who is as skillful and handsome as he is mysterious and terrifying. He can cure any illness, heal fatal injuries, transform lead to gold, summon vicious monsters to do his bidding and perhaps even...revive the dead!?

N/A

The peaceful lives of many are taken away as a freak meteor shower destroys the Kanto area of Japan. However, the lives of the victims aren't lost, as they start to awaken one by one into a strange pre-historic world. A girl named Kyoka awakens into this world, and is attacked by a monster, however she is saved by Shinma Shingo, another monster. She joins Shinma and his companion as they search to find a way back home.

Based on the popular noitaminA anime of the same name, Mononoke is the story of a mysterious medicine seller (Kusuriuri) who traverses cities, villages - and, seemingly, time - on a lone quest through ancient Japan in order to vanquish "mononoke," supernatural entities created when a strong human grudge or desire combines with a type of free-roaming spirit named ayakashi. But his quest is not so simple, as the darkness of humanity is endless and makes figuring out the Form, Truth and Regret of the mononoke - which are prerequisites if he is to be able exorcise them - an incredibly dangerous task which rarely fails to turn up casualties.

Each volume or pair of volumes follows the eponymous arc from the anime:

V.1-2 - Mononoke (Note: this is the adaptation of episodes 9-11 of Ayakashi - Japanese Classic Horror, a supernatural anime in which the medicine seller was first introduced before the arc's success prompted him to receive his own series)
V.3-4 - Mononoke - Umibouzu
V.5 - Mononoke - Zashiki-Warashi
V.6 - Mononoke - Nue
V.7 - Mononoke - Noppera-bou

One day, the people became violent and started to attack each others. the dead too began to walk...

In the story, for generations the men of the Susuhara family have, upon reaching a certain age, left home and gone their own way, living alone with no one to depend on until they are acknowledged. The protagonist is a high school student who has left home and is comfortable at his new school. But there's a strange girl named Toe Kurokami. She carries what appears to be Japanese doll, and he's sure its hair grows and it whispers things. Meeting her might be his destiny.

The story revolves around a love triangle between the male protagonist, Makoto, and two girls in his year, Kotonoha and Sekai.

Makoto develops an interest in Kotonoha, and although they both take the same train to school, she seems to be unaware of his existence. One of his classmates, Sekai, gets the two together despite holding strong feelings towards Makoto.

The month is February, but it hasn’t snowed all winter. Kanon’s father is often away on business trips and might be getting a little too friendly with his pretty young female subordinate; which Kanon doesn’t approve of so soon after her mother’s death. Her little brother collects insects, but they’re dying off.

It turns out that these deaths are the first of many a plague to come down. First it’s the insects, inexplicably dropping dead everywhere. Then it’s the rats, looking for a new food source. And things just keep getting worse…

A collection of eight short stories.
1) "Moon": A mermaid dreams of going to a place full of light, when she meets an angel underwater.
2) "Flower": A girl is tricked by the Guardian of Time and enters a dangerous clock tower.
3) "Star": A boy wants to travel to the stars to reunite with his father.
4) "Flame": The princess of fire goes to an ice land to save her beloved one.
5) "Dream": L4 is the new name of the Moon. They say there's a girl who lives there, and a dream seems the proof of it.
6) "Darkness": There is a western style house buried deep within the forest... something terrible happened, and for those who thought they died inside, this is only the begining.
7) "Sky": A girl leaves her home to seek for adventures with her pet.
8) "Mirror": A woman lives alone in a mirror and wants someone to be with her.

Alien invasions come in all shapes and sizes. This time, the Earth is under attack by "Unknown Codes" that infiltrate digital devices to eviscerate the human race. The only known way to counter these codes is to play their own game. An awkward mesh of men with different motives are recruited to fight. How is everything going to end?

In an era filled with war, Private Muol Reed is sentenced to death for murdering his superior and is labeled "Criminal No. 5722". While being led to his grave, a mysterious person decides to take him in...

Adapted from the light novel of the same name.

All souls of those murdered arrive at the Gate of Grudges. Izuko, keeper of the Gate of Grudges, presents each soul with three choices: pass through the Gate of Grudges to heaven and be reborn, refuse to admit death and remain as a ghost on earth, or haunt and kill one person and then proceed to hell and eternal suffering. What does each soul choose and why?

Order of Sequels: Karma, Shinshou, "4", Hèven

From Aerandria Scans:

In New York, behind all the hustle and bustle of the big city, Kazuya and Keith execute "requests" in order to live. No one knows about them. But what happens to people who look directly into Kazuya's jet black eyes?! For some reason, they start to change, little by little. The much-awaited first volume of a romantic horror story between light and darkness.

Aiko should be dead, but when she awakes in a secret hospital, she has no recollection of what happened that night. Until a monster showed up and her memories flood back. Her arm changed into a powerful weapon similar to the monster, a chimera arm.

The secret organization Atheos asked her to help them fight off the chimeras. An accident happened that led Aiko to understand how much she wants to live, and decided to join Atheos, in order to find her place.

From Viz:

Kurôzu-cho, a small fogbound town on the coast of Japan, is cursed. According to Shuichi Saito, the withdrawn boyfriend of teenager Kirie Goshima, their town is haunted not by a person or being but by a pattern: uzumaki, the spiral, the hypnotic secret shape of the world. It manifests itself in small ways: seashells, ferns, whirlpools in water, whirlwinds in air. And in large ways: the spiral marks on people's bodies, the insane obsessions of Shuichi's father, the voice from the cochlea in your inner ear. As the madness spreads, the inhabitants of Kurôzu-cho are pulled ever deeper, as if into a whirlpool from which there is no return...

This chapter focuses mostly on Battler's sister Ange, and her life twelve years after the massacre on Rokkenjima. The existence of magic is heavily implied in this chapter. Many new characters make their debut, such as Siesta 00, Gaap, and a number of humans. (Wikipedia)

From Storm in Heaven:

In the town that Takada Chinatsu moved to, there's a legend about demons called Tsumitsuki that possess the feelings of guilt a person has over their sins. Those who are possessed are slowly devoured, body and mind, as the demon manifests. As one of Takada's friends starts acting strangely, her classmate Kuroe steps in to help... but his true motives are hidden behind a mask.