Top 10 Mystery Anime of 2012
1. From the New World
A millennium from now, in Japan, exists a utopia. The Protagonist, Saki Watanabe, lives in an idyllic village barred from the outside world. Her world is ruled by the people who possess the "gods' power" of psychokinesis. After finally obtaining her own powers, Saki enters the Zenjin Academy to train along with five other children: Satoru Asahina, Maria Akizuki, Mamoru Itou, Shun Aonuma, and Reiko Amano.
Not all is as it seems, however. In this utopian village, strange rumors about a monstrous cat that abducts children circulate, and students are said to disappear from the academy. The world and its history are much darker than they appear and humanity is on the verge of collapse.
(Source: TV Tropes)
First season of the Monogatari Series, part 5/6. Contains the arcs Karen Bee and Tsukihi Phoenix from the Nisemonogatari light novels.
After his encounters with the vampire, the cat, the crab, the snail, the monkey, and the snake, Koyomi Araragi is ready for anything. Anything, that is, except being kidnapped by his girlfriend Hitagi Senjougahara, who reveals that a dangerous con man named Deishuu Kaiki has arrived in town. When Araragi's sister Karen becomes the latest victim of Kaiki's schemes, Araragi is left with no choice but to confront this threat.
Later, Araragi's other sister Tsukihi is faced with a threat of her own. Two mysterious women whose knowledge and strength match that of Meme Oshino have set their sights on the young girl. The truth behind their sudden appearance may change Araragi's life forever.
(Written by Edo)
Oreki Houtarou is a minimalistic high school boy. One day, he joins the Classic Literature Club at his elder sister's request.
There he meets Chitanda Eru, Fukube Satoshi, and Ibara Mayaka. Chitanda is a calm beautiful girl but she turns into an embodiment of curiosity once she says, "I'm interested in it (Watashi, Kininarimasu)". Fukube is a smiling boy with a fantastic memory who calls himself a database. Ibara is a short girl and is strict with others and herself. She loves Fukube, but he always dodges her approaches.
They begin to investigate a case that occurred 45 years ago. Hints of the mystery are buried in an old collection of works of the former members of Classics Club. The collection is titled "Hyouka."
4. Nekomonogatari Black
First season of the Monogatari Series, part 6/6. Contains the arc Tsubasa Family from the Nekomonogatari: Kuro light novel.
Spring break is over, but Golden Week is here. When Koyomi Araragi runs into his friend and savior Tsubasa Hanekawa, he notices something is off. Even though Hanekawa is clearly wearing a bandage on her face, she insists that it is no cause for concern. Later, when the two encounter a dead white cat and bury the body, they unknowingly trigger another supernatural event. Hanekawa becomes possessed by the demonic spirit of the cat, and goes on a violent rampage across town. It's now up to Araragi to save the girl who saved him, all the while figuring out if his passionate feelings toward her may be love after all.
5. Blast of Tempest
One day, a sorceress princess was stuffed into a barrel and banished.
One day, a single girl was suddenly murdered, and the culprit still runs free.
And one day, a battle spanning time and space over magic and revenge began!
Sanity and madness, sense and intelligence, self-confidence and convictions.
The tragic tale of this irrational world starts now.
The Kusaribe family is a family of sorcerers under the protection of the "Tree of Origins". Their princess, Hakaze Kusaribe, was the greatest sorceress of their family. But Samon Kusaribe, a member of their family seeking to resurrect the "Tree of World's End", a tree that opposes the "Tree of Origins" and controls the power of destruction, stuffs her into a barrel, and banishes her to a deserted island. From the deserted island, she sends a message out to sea, which is picked up by Mahiro Fuwa, a young boy who's sworn vengeance upon the criminal who killed his little sister, Aika. Mahiro agrees to help Hakaze under the condition that she find Aika's killer with her magic. But once Mahiro's best friend and Aika's lover, Yoshino Takigawa is rescued from danger, he too gets dragged into this tale of revenge.
(Source: Aniplex USA)
6. Dusk Maiden of Amnesia
60 years ago, a young woman was left to die in the abandoned school building behind the exclusive Seikyou Academy. No one knows why. No one knows how. But the horrifying tale and the legends of the ghostly haunting that followed live on to this day. Perhaps it's not so surprising then, that among Seikyou's many school clubs is one for students interested in "paranormal investigations." What might raise more than a few hairs, however, is that the founder of the club is the ghost herself. Unable to remember how she died and trapped in the grey land between life and death, Yuuko latches onto Teiichi Niiya, a freshman who can inexplicably see her, and together they and the other unsuspecting members of the club begin to unravel the many dark mysteries that surround Seikyou. Will unlocking the secret of Yuuko's gruesome death finally free her? Or will her sudden close association with a mortal have even stranger repercussions on both of their existences?
(Source: Sentai Filmworks)
7. Case Closed Movie 16: The Eleventh Striker
After an interaction with J-League professional players, Conan and co watches the big match between Tokyo Spirits and Gamba Osaka, only to find out that a bomb has been planted in the stadium. It is now up to Conan once again to foil the culprit's plans and reveal his/her true identity.
8. Inu X Boku Secret Service Special
Unaired episode to be released with the seventh volume of the Blu-ray & DVD. It will consist of three short episodes newly written by the manga author Fujiwara Cocoa. Fujiwara also designed a new character called Hana-chan for the episode.
9. Dusk Maiden of Amnesia: Exorcism Maiden
Unaired episode 13 bundled with 6th Volume of DVD/Blu-rays.
Set in a world where history has taken a slightly different course from the one we're familiar with, K follows the story of a young boy whose life is caught in a psychic war between seven kings.
Ashinaka High School is known for its unique setting: the entire campus is built on an island. Yashiro Isana, aka Shiro, is having lunch with a cat on one of the school rooftops. After his lunch break, Shiro goes on an errand for his classmate Kukuri to prepare for their upcoming school festival, only to be chased by some intimidating-looking men.