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10. Kyoukai no Kanata

Mirai Kuriyama is the sole survivor of a clan of Spirit World warriors with the power to employ their blood as weapons. As such, Mirai is tasked with hunting down and killing "youmu"—creatures said to be the manifestation of negative human emotions. One day, while deep in thought on the school roof, Mirai comes across Akihito Kanbara, a rare half-breed of youmu in human form. In a panicked state, she plunges her blood saber into him only to realize that he's an immortal being. From then on, the two form an impromptu friendship that revolves around Mirai constantly trying to kill Akihito, in an effort to boost her own wavering confidence as a Spirit World warrior. Eventually, Akihito also manages to convince her to join the Literary Club, which houses two other powerful Spirit World warriors, Hiroomi and Mitsuki Nase.

As the group's bond strengthens, however, so does the tenacity of the youmu around them. Their misadventures will soon turn into a fight for survival as the inevitable release of the most powerful youmu, Beyond the Boundary, approaches.

Beyond the Boundary is finished and has 12 Episodes. It is also Known as: 境界の彼方, Beyond the Horizon, Kyokai no Kanata

9. Shikabane Hime: Aka

After being brutally murdered along with her family, Makina Hoshimura turns into a Shikabane Hime, a living corpse contracted to the Kougon Cult, in order to exert revenge on the mysterious undead organization responsible for her death. She is assisted in this task by Keisei Tagami, her contracted priest and former friend. This series follows the story of Keisei's younger brother Ouri, a boy with an unusual attraction to death, who slowly discovers his brother's secret and gets dragged into the world of the Shikabanes.

Corpse Princess: Aka is finished and has 13 Episodes. It is also Known as: 屍姫 赫, Shikabane Hime Aka

8. Night Walker: Mayonaka no Tantei

Shido Tatsuhiko is not only a private eye... he is also a vampire with no real memory of his past. Joined by Yayoi Matsunaga, a female government agent, Riho Yamazaki, an orphaned teenage girl working as his girl Friday and Guni, a little green imp, Shido must face demonic creatures known as Nightbreed. Meanwhile, Cain, the vampire who made him what he is now, is seeking him...

Nightwalker: The Midnight Detective is finished and has 12 Episodes. It is also Known as: Night Walker -真夜中の探偵-, NightWalker: Eternal Darkness

7. Blood+

Saya Otonashi is a seemingly ordinary girl living a mundane life with her adoptive family in Okinawa City. In fact, her only peculiarities are suffering from anemia and being unable to remember any of her life beyond the previous year.

However, Saya's forgotten past quickly comes back to haunt her—one night, she is attacked at school by a creature that feeds on human blood. Just when all hope seems lost, a mysterious man named Haji appears and fends off the creature temporarily. But when her rescuer forces her to drink his blood, Saya suddenly enters a trance and slays the monster with ease, using her own blood as a catalyst.

Saya then learns of an organization named Red Shield, founded for the sole purpose of defeating the hellish beasts. Now Saya and Haji must work together with Red Shield to fight these fearsome monsters and unlock the secrets to the girl's past.

Blood+ is finished and has 50 Episodes. It is also Known as: ブラッドプラス, Blood Plus

6. Jigoku Shoujo

Have you heard of Jigoku Tsuushin ? Those with a powerful grudge may only access this mysterious website at midnight, allowing them to enter anyone's name and have that person be ferried straight to hell. Ai Enma, the Hell Girl, will not judge whether or not the chosen target deserves punishment; she will merely exact revenge on them for you, provided your pain or suffering move her. Not much is known about this young girl other than that she swiftly carries out her tasks with the help of three straw dolls. There is just one catch, however—as payment for carrying out such a request, the user must condemn themselves to an afterlife in hell.

Hell Girl is finished and has 26 Episodes. It is also Known as: 地獄少女, Jigoku Shojo

5. Jigoku Shoujo Futakomori

Ai Enma and her companions continue to offer their service of revenge against those who have wronged others, and the price is as steep as ever—for damning the offender to hell, the person exacting vengeance is sent to the abyss as well. As they cast soul after soul into the darkness, a new sinister force is watching them: a little girl named Kikuri.

While Ai continues her duties, she meets a boy named Takuma Kurebayashi, known as the "Devil's Child" because of the horrific events that occur around him. Unfortunately, Takuma's reputation leads the townspeople to use him as a scapegoat for those who have been ferried off to hell. When things quickly spiral out of control, Ai must find a way to bring an end to this senseless violence, as it poses a threat to her very existence.

Hell Girl: Two Mirrors is finished and has 26 Episodes. It is also Known as: 地獄少女 二籠, Jigoku Shoujo 2, Hell Girl 2, Hell Girl Futakomori, Hell Girl Second Cage, Hell Girl: The Two Prisoners, Jigoku Shoujo -Futagomori-, Jigoku Shoujo: Futagomori

4. Jigoku Shoujo Mitsuganae

After the events of the second season, Ai's three helpers, Ichimoku Ren, Wanyuudou, and Hone-Onna live out their lives in relative peace. This is suddenly shattered when Kikuri returns to recruit them. Meanwhile, Ai mysteriously reappears from the dead and uses the body of a young schoolgirl, Yuzuki Mikage, to continue the Jigoku Tsuushin operation. Yuzuki is aware of Ai's presence, however, when she can see what Ai sees.

Hell Girl: Three Vessels is finished and has 26 Episodes. It is also Known as: 地獄少女 三鼎, Hell Girl 3, Jigoku Shoujo 3

3. Mamono Hunter Youko

Yohko Mono is a regular girl making her way through high school--until she learns that she is the 108th successor to a line of warriors charged with defending the earth against demons. Eventually she must fight her ultimate battle against the demon who started it all.

Devil Hunter Yohko is finished and has 6 Episodes. It is also Known as: 魔物ハンター妖子, Demon Hunter Youko, Mamono Hunter Yohko

2. Mushishi

"Mushi": the most basic forms of life in the world. They exist without any goals or purposes aside from simply "being." They are beyond the shackles of the words "good" and "evil." Mushi can exist in countless forms and are capable of mimicking things from the natural world such as plants, diseases, and even phenomena like rainbows.

This is, however, just a vague definition of these entities that inhabit the vibrant world of Mushishi, as to even call them a form of life would be an oversimplification. Detailed information on Mushi is scarce because the majority of humans are unaware of their existence.

So what are Mushi and why do they exist? This is the question that a "Mushi-shi," Ginko, ponders constantly. Mushi-shi are those who research Mushi in hopes of understanding their place in the world's hierarchy of life.

Ginko chases rumors of occurrences that could be tied to Mushi, all for the sake of finding an answer.

It could, after all, lead to the meaning of life itself.

Mushi-Shi is finished and has 26 Episodes. It is also Known as: 蟲師, Mushishi

1. Petshop of Horrors

Count D, a quite interesting pet shop owner from an area called Chinatown, sells rare and hard to come by pets to people longing for something special, but with each sale comes a contract. If the rules of the contract are followed, everything goes fine, but if someone should break the rules of the contract, the pet shop cannot be held responsible for anything unfortunate that might happen. Leon Orcot, a homicide detective, has linked many odd and unexplainable deaths together; they all were customers of Count D's pet shop, and he intends to find out why.

Pet Shop of Horrors is finished and has 4 Episodes. It is also Known as: Pet Shop of Horrors (ペットショップ・オブ・ホラーズ), Petshop of Horrors