My top 4 Horror Animes.
I know there are a lot more than these...
if you have suggestions
please feel free to suggest in comments!
4. MOON PHASE
The story is about the relationship between freelance photographer Kouhei Morioka and Hazuki, a young girl who descends from a royal vampire lineage. At the beginning of the story, Kouhei travels to a castle in Germany to take photographs of paranormal phenomena for his friend Hiromi, who is the editor of an occult magazine. At the castle, Kouhei meets Hazuki, who feeds on Kouhei's blood and claims him as her unwilling servant. Although this "blood pact" is supposed to bind Kouhei to Hazuki as her obedient slave, her act has no effect on Kouhei. Following an action-packed sorcerers' battle in which Kouhei and his cousin manage to free Hazuki from her captivity in the dreary castle, Hazuki travels to Tokyo, and takes up residence with Kouhei in his grandfather's house in Japan. Hazuki claims that, because she fed on his blood, Kouhei is now her servant, but Kouhei continually refuses to obey her, especially when he thinks her requests are unreasonable. Despite their fighting, the relationship between the duo progresses over time — even in the face of repeated attacks by opposing vampires — until Kouhei becomes determined to protect Hazuki from the vampire servants of her family, who are determined to retrieve her by whatever means necessary.
3. ELFEN LIED
Lucy is found by two locals, Kohta, who studies at the local university, and his cousin Yuka. They take her in, and become involved with the numerous, often brutal, attempts to recapture her by a Special Assault Team and a number of other Diclonius, who shift frequently from oblivious to murderous.
Much of the plot of Elfen Lied revolves around the Diclonii species, which strongly resemble humans; the only obvious difference are the two horn-like protrusions extending from the temporal and parietal regions of the skull.
Diclonii powers involve the use of invisible arms, known as "vectors", that can grasp and impact things as if they are solid, but also become insubstantial and pass through objects. They can slice objects as well, which is how Diclonii usually kill their victims. Vectors usually have a limited range of a few meters, but the length varies among each Diclonius. Diclonii also demonstrate the ability to sense one another.
A key point of debate throughout the series is the Diclonius propensity towards violence. Many have a vendetta against humans, and have ambitions to wipe out the human race and populate the world with their own species. It is disputed and contradicted during the series as to how Diclonii develop their violent behavior, whether it is part of their genetic DNA or whether it stems from abuse by humans.
If a Diclonius vector penetrates or even so much as touches a human male body, the "vector virus" is transferred to the human, causing their children to be born as Diclonii (when born from humans they are called "Silpelits"). An incident involving the escape of a child Diclonius during Kurama's early years where the Diclonius' vectors penetrated him without causing him pain, resulted in Mariko being born a Diclonius and Kurama taking precautions against a recurrence by urging Bando to be sterilized. All Diclonii (Silpelits) born from human parents are sterile and female. There is only one Diclonius that is actually capable of reproducing: Lucy, the "queen".
2. TRINITY BLOOD
When Earth's population drastically increased, humanity, led by the United Nations, attempted to colonize Mars. During the colonization, they discovered two alien technologies: the Bacillus virus and the Crusnik nanomachines. The colonists injected the Bacillus in their bodies which transformed them into "Methuselahs". They installed the Crusnik in the bodies of four test tube babies: Seth, Cain, Abel and Lilith whose enhanced bodies were the only ones able to survive the procedure.
Continuing wars on Earth eventually led to Armageddon, the apocalyptic event that happened 900 years before the start of the story, and the colonists returned to Earth to help with rebuilding. However, when the colonists returned to Earth, a war broke out between the Methuselahs and the humans who had remained on Earth. Abel, Cain, and Seth took the Methuselah's side—while Lilith supported the Vatican, which guarded humanity. During the war, Cain went insane and killed Lilith. In grief, Abel took her body to the Vatican where she was buried. Abel remained at her side, weeping for her, for 900 years.
At the start of the story, the vampiric Methuselahs, still a major political and military force, continue to wage war on the "Terrans", as they call the human inhabitants of Earth. The Roman Catholic Church is a major military power determined to protect humans from the Methuselahs, with its seat of power based in the Vatican. The Methuselahs have their capital in Byzantium, which is surrounded by a field of particles to filter out UV radiation, protecting the Methuselah population.
Both groups use "lost technologies", such as airships, missiles, and computers, to engage in a cold war with one another. A third great power, Albion also plays a role in the war with its superior arsenal of lost technology and weapons and higher level of manufacturing ability versus the Vatican. The independent monarchy of Albion is a primarily human country, however the secret of their expertise in lost technology is found in the Ghetto, an underground city of enslaved Methuselah. It is these Methuselah who operate and manufacture the lost technology, but with the death of the Albion Queen, some of the enslaved vampires begin a rebellion for the freedom of all of the Ghetto residents.
Hellsing is named after and centered around the Royal Order of Protestant Knights, originally led by Abraham Van Helsing. The mission of Hellsing is to search for and destroy the undead and other supernatural forces of evil that threaten the queen and the country. This organization is currently led by Sir Integra Fairbrook Wingates Hellsing, who inherited the leadership of Hellsing as a child after the death of her father. She witnessed his death which turned her from a once innocent and shy little girl to a tough and deadly force. She is protected by the faithful Hellsing family butler and former Hellsing "trashman" Walter C. Dornez, a deadly foe in his own right, and Alucard, the original and most powerful vampire that swore loyalty to the Hellsing family after being defeated by Van Helsing one hundred years before the story takes place. These formidable guardians are joined early on in the storyline by former police officer Seras Victoria, whom Alucard turned into a vampire.
As the scale and frequency of incidents involving the undead escalate in England and all around the world, Sir Integra discovers that the remnants of a neo-Nazi group called Millennium still exist and are intent on reviving the Third Reich by creating a battalion of vampires. Millennium, Hellsing, and the Vatican section XIII Iscariot clash in an apocalyptic three-sided war in London, and Millennium reveals its true objective: to destroy the vampire lord Alucard, ending a feud begun during World War II.