Top 10 Mystery Manga of 2009

82%

1. Attack on Titan

Action, Drama, Fantasy, Horror, Mystery

Several hundred years ago, humans were nearly exterminated by titans. Titans are typically several stories tall, seem to have no intelligence, devour human beings and, worst of all, seem to do it for the pleasure rather than as a food source. A small percentage of humanity survived by walling themselves in a city protected by extremely high walls, even taller than the biggest of titans.

Flash forward to the present and the city has not seen a titan in over 100 years. Teenage boy Eren and his foster sister Mikasa witness something horrific as the city walls are destroyed by a colossal titan that appears out of thin air. As the smaller titans flood the city, the two kids watch in horror as their mother is eaten alive. Eren vows that he will murder every single titan and take revenge for all of mankind.

(Source: MangaHelpers)

76%

2. Iris Zero

Drama, Fantasy, Mystery, Romance, Supernatural

In a world where every boy and girl has a special power called Iris, Toru who, as a result of not having any kind of special power from a young age, lives by his motto, "low exposure" - to live without standing out.

But his peaceful school life changes when he receives a certain "confession" from the school's most popular girl, Koyuki. His motto begins to shake!!

The school fantasy that shakes the heart begins with their meeting.

76%

3. Umineko When They Cry 3: Banquet of the Golden Witch

Drama, Horror, Mystery, Psychological

In this chapter, several new characters are introduced, like Virgilia, Ronove, and the Siestas. This chapter mainly focuses on Eva and Beatrice and their pasts. More magical details are involved as the story develops.

(Source: Wikipedia)

74%

4. Umineko When They Cry 4: Alliance of the Golden Witch

Drama, Horror, Mystery, Psychological

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.

(Source: Wikipedia)

74%

5. Zetsuen no Tempest

Action, Drama, Mystery, Psychological

The point of view begins with Hakaze, a witch who ended up on a deserted island. Changing point of views, we now look at Yoshino and Mahiro. Yoshino and Mahiro were best friends, but one day Mahiro suddenly disappeared. Yoshino assumed that he found a clue to whoever murdered his family. Despite the close bond they had, Yoshino has no idea where Mahiro is. However, one day when Yoshino was putting flowers on Mahiros' family's grave, a woman questions Yoshino about Mahiro at gun point. According to the woman, Mahiro got involved with some serious issues that will inevitably put the human race in a catastrophic situation, and the Japanese government is desperately looking for Mahiro. Apparently some sort of "magic" is involved. What happened to Mahiro? And who is this Hakaze girl? What does Hakaze have to do with this?

(Source: MangaHelpers)

73%

6. Steins;Gate

Drama, Mystery, Sci-Fi

The story of Steins;Gate takes place in Akihabara and is about a group of friends who have managed to customize their microwave into a device that can send text messages to the past. As they perform different experiments, an organization named SERN who has been doing their own research on time travel tracks them down and now the characters have to find a way to avoid being captured by them.

(Source: Wikipedia)

73%

7. Inu x Boku SS

Comedy, Mystery, Supernatural

The Shirakiin house's daughter, Shirakiin Ririchiyo, who has a complex about being unable to live independently and unprotected, feels the need to move out and live on her own under the condition of residing in the mansion named "Ayakashi Kan." In this mansion, only those who have cleared a very strict examination could reside in it, and for each resident, they are accompanied with one agent of the Secret Service (S.S.). Although Riricho has rejected the company of the S.S., while residing in the mansion she finds out that the agent dedicated to protecting her is actually the Fox Spirit whom she previously rescued.

73%

8. Umineko When They Cry Episode 2: Turn of the Golden Witch

Drama, Horror, Mystery, Psychological, Supernatural

07th Expansion presents. Welcome to Rokkenjima (Six eaves island).

Fall 1986... in Rokkenjima, a private island owned by Kinzou Ushiromiya, eleven of his relatives arrive for a family reunion. He is dying and children want nothing more than to split the wealth he will leave behind. But as a storm traps them on the island, the riddle of Rokkenjima's legendary golden witch begins to take the lives of several people. Who can solve the riddle and gain the gold & the inheritance? Will the golden witch truly revive?

Note: The story is divided into episodes: four "Question" arcs. Each episode keeps the same main characters, but ends in a different way. However, each episode gives valuable answers, hints, and clues to the previous one, while at the same time bringing forth even more mysteries.
The question arcs are: Legend of the golden witch, Turn of the golden witch, Banquet of the golden witch, and Alliance of the golden witch.

(Source: MU)

72%

9. Drifters

Action, Adventure, Comedy, Fantasy, Mystery

Shimazu Toyohisa, whilst involved at the Battle of Sekigahara, manages to mortally wound Ii Naomasa, but is critically wounded in the process. As he walks from the field broken and bleeding, Toyohisa finds himself transported to a corridor of doors, where a bespectacled man at a desk waits for him. This man, Murasaki, sends Toyohisa into the nearest door where he wakes up in another world. There, Toyohisa meets other great warriors like him who have been transported as well, to be part of a group known as "Drifters".

(Source: Wikipedia)

71%

10. Defense Devil

Action, Comedy, Drama, Ecchi, Mystery

Mephisto Bart Kucabara is a devil lawyer. In order to return to the demon world that he was exiled from, he needs to collect enough Dark Matter. To do so, he creates a plan to claim the Dark Matter from the souls of sinners sentenced to hell; prove the soul's innocence and the Dark Matter becomes his.

But how can he gather enough Dark Matter when his kind personality causes him to continually use it up in order to defend the soul from the Shinigami that has come to take them to hell?

From the authors of the popular series Shin Angyo Onshi.

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