The story takes place after the failed Shimabara Rebellion, led by Shiro Amakusa as a Christian uprising against the Shogunate. It ended...brutally, and Amakusa himself was executed. However, dark forces are at work, and Amakusa returns from the grave...

A young man sits in the inner room of a library, diligently restoring old - but valuable - books to their former splendour. An enthusiastic, upbeat young police officer often comes to him for help with hard-to-solve cases...But what exactly is the mysterious skill that allows this man to unfailingly discover the truth lying in places that even the watchful eye of the Law has failed to penetrate?

A boy's terrifying dream that brings an end to a humanity that is rotting. A high school student named Gi Haru, who has an illness that prevents him from differentiating between reality and delusions. His only friends are his studious friend Kang Yul and girlfriend Kang Lee Ha. However one day, after seeing a hallucination of a Nazi assembly during his friend Kang Yul's poetry recitation, the school falls into a pandemonium of hell where everyone is killing each other, but Gi Haru believes it to be another one of his delusions. However, that was the blunt truth. That day, where the mass murder of the entire student body took place, (The starting day) Gi Haru kills his girlfriend Kang Lee Ha with his own hands, is betrayed by his one and only friend Kang Yul, and ends up losing both his eyes. Afterwards, he was detained in a mental institute as the culprit of massacring the entire student body, but after receiving help from the capable group of the Panthers he begins to chase after Kang Yul and begins the road of vengeance.

From Shi-ran:

Kasumi's day just keeps getting worse and worse. First he's dumped by a classmate, and then a strange fortune-teller shakes his world as he reveals himself to be in search of a master. And who could the lucky boy be...?

After his master Goomonryong destroys his ki-center, Shioon leaves the world of the Murim for a normal life to which he believes his master was trying to return him. But for a boy who holds the Phoenix medallion of the Sunwoo clan and the knowledge of the Black Heaven & Earth Technique, the world of the Murim will come to him... Continuation of The Breaker with new allies and enemies.

Manhwa you may like:
+ The Gamer
+ Gosu
+ Yongbi

Isei’s life crumbled right before his eyes as the one he fell in love with died. But when everything seems dark in his life something happens...

Once upon a time, there was a leak in the sky and the residents of the sky kingdom sneaked out to the human world. They were known as monsters and gods because they are totally different species. One day, five Ahrangs came to earth by God's will in order to send the sky people back to where they belong. After ever-lasting battles, the sky people were finally gone and never seen again by the world. However, it's rumoured that the legendary Ahrangs remained in the land still in search for sky people.

A demon boy who lacks horns on his head wields the cursed blade "Onikirimaru", the one weapon that can slay a demon, in a never-ending battle with the demons that haunt Japan during the age of the samurai.
Behind the stories of Oda Nobunaga, Toyotomi Hidetsugu, Ishida Mitsunari, and the other famous generals of the Japanese civil wars lurk secrets and demons ...
An astonishingly deep story about these demons and the sword Onikirimaru!
And this also includes the secrets of Onikirimaru's birth, which readers have always wanted to know.
The legend of Onikirimaru explains clearly how Onikiri was born, and the hidden secrets of his past.
Behold the battle between the darkness of the age of the samurai and Onikirimaru!

The souls of the Hakkenshi are reincarnated in the present. Inuzuka Shino is a high school student who shares the name of the legendary Hakkenshi, "Devotion". The name has caused him nothing but stress all his life. Now, because of his name, he's gotten himself wrapped up in a conflict with the Blight, creatures from a giant hole that has suddenly emerged in the city.

Yuuki and Michi -- two childhood friends who drifted apart are reunited inside a mysterious train.

Demon summoner - what is this? And why?... These are the main questions Touya Douji is trying to answer. Just where should he be looking for them? Maybe, inside himself?

Do you want to understand the meaning of life? Do you really want to live?

The gate that leads the souls of the dead into the Underworld – that is called "Shisei Gokumon". There is a watchman at the front and the back of the gate. The black Gozu and the white Mezu. The only time they are able to meet is during the diminutive span of time when the gate is open.

"I want to touch the ox-headed demon dyed in darkness."

"I don’t want to stain the pure white horse-headed demon."

Two beings who can never be permitted to touch each other, despite their mutual affections. So close...yet so far. Those thoughts could only lead to... If they were human, perhaps this could be referred to as "love".

From The Zero Alliance:

At Seirei Academy, a series of mysterious demonic ceremonies have been taking place and the transfer student, Yuriya Yuuki is suspected by his classmates. One evening, from his dormitory window, Yuriya sees a girl wandering outside and follows her. Once outside, he encounters a book which allows him to summon the demon Belial, whom invites Yuriya to enter into a contract with him…

The pain Korean high school students have to go through... Going to school at 8am and coming home at 10pm...

A young lesbian couple ventures into a love hotel to perform an erotic ritual of black magic.

Zhong Kui, in traditional Chinese culture he was a god who was skilled at dispelling ghosts and other evils. He was born with a fierce and atrocious face. While he was quite ugly, he was also brilliant, outspoken, and tenacious. This story is not entirely based on tradition. It folows Zhong Kui through a fantasy world of ying and yang.

Nanri Ryusuke has transferred schools three times this year because of his parents’ divorce and he is determined to make a good impression at this new school because it appears that he's staying for good this time. However, his seat is in front of the weird girl in the class, Fujimori Miya, who claims she is a witch and who everyone in the school avoids. Miya, for some odd reason, takes a creepy interest in Ryusuke and makes him the subject of all her crazy experiments and spells.

The series is on hiatus since late 2012 due to the author's health issues.

The series contains 2 volumes;

1) Vartrag Tale
Ralph can see angels and demons. When he was five years old he came across the winged demon Valafar and was completely charmed by him. He made a pact with the demon in order to make his wish, to live with Valafar, come true. Seven years must pass, and there are two conditions that must be met for the pact to be fulfilled. Can the older Ralph discard his ties to humanity and fulfill the pact...?

2) Vartrag Tale - Korumajou no Shitsuji
The story of Valafar's ever-faithful butler, Belta.

Chiyo meets a wealthy nobleman who seems to be the grim reaper.
A story about being able to save people who are destined to die.