The shogunate installed by the Tokugawa is abiding order, the people live in peace and in a relative prosperity.

However, the dark part of the human heart does not cease to arouse their cupidity : it is the ideal doorway for all demons that, by possessing humans, seek to pass into their world.

Exorcising these demons is Jonosuke's mission, the master of keys. Known for being the best locksmith of Edo, Jonosuke uses particular locks to put the wicked spirits under lock and key. With the help of the bewitching O-kin, a divine who uses unorthodox methods, Jonosuke is going to meet during his demon hunt some notables of his time, who will prove to be precious allies when he faces a plot aimed at the upper spheres of State.

From Aerandria Scans:

Rinko is an ordinary girl who was born with a mysterious birthmark on her left arm. But when that mark starts to get darker, strange accidents begin to happen everywhere around her, involving even the people she cares about. What will the powerful magic awakening inside Rinko bring her?

In 1987, Purple Eyes in the Dark was awarded the Shogakukan Manga Award for the shoujo manga category.

Later it got a continuation: Yami no Purple Eyes - Bangaihen - PANTHERS.

A girl follows the tradition of her family by testing to be a demon cleaner. During her test a vampire escapes and bites her. In order to reverse the effects of the bite her older brother and said vampire have to go on a demon cleaning job together.

In a city split between humans and occult, Colin Aston just wants to run his diner and make bad coffee. A peaceful life isn't on the menu though, as a mysterious blonde shows up with a job only Colin is capable of performing. If he takes it, Colin will have to face sorcerers, politicians, and little old ladies... not to mention a secret that destroyed nearly half the city and hits a little too close to home.

Explore the lives of the famous-yet-not-so-famous people of history; such as Nikola Tesla, Ty Cobb, Typhoid Mary, the woman behind the Winchester Mystery House, Kou Yoshio, and many more.

Series of one-shots published between 1989-2003, released a tanko volume in 2004 and a bunko release in 2012.

wrath, greed, sloth, pride, lust, envy, and gluttony. Those seven deadly sins are the sins that the lord have to erase them. Ayumi, Sai, Natsu, the three close friends go to the same school. Ayumi Utadaki famous for her devil voice, while Sai Nadeshiko famous for the devil eyes, the eyes could read through a person soul, last but not least Natsu Nadeshiko famous for her devil ear, she could hear any scary sound that normal human can't hear. The different is that this school is not normal, this school is a haunted school, almost all the student there are sinner, what kind of sin? 7 deadly sins. those students in this school suspect those 3 new students, so they do no matter what to kill them because if they dont kill this 3 student Lucifer will kill them and burn them in hell.They do this for they own existent, among those 3 who is the real Lucifer, who contain all 4 devils traits, devil voice, ear, eyes, and heart?

From Dragon Voice Project:

Setsu is a tomboy who lives in the small village Niolz and she's been participating in various Martial Arts Comepetitions in order to earn enough prize money to travel to the capital Bazen where King Lucaria resides... Luca, her childhood friend who left in order to ascend the "Scarlet chair" as the last rightful heir of the royal line. However when she finally arrives there and gets a glimpse of the King she's shocked to find a stranger in his place! What's going on? But more importantly what happened to the real Luca? Join Setsu in her quest to uncover the truth and find that precious childhood friend...

Some staircases are not meant to be traipsed upon.

Prologue of "Cloud Atlas", a movie released in 2012, drawn by SIU, creator of "Tower of God".

From Viz: After a escaping the unwanted attentions of some bored soldiers with the help of a handsome stranger, Sophie returns home only to be accosted by the infamous Witch of the Waste! The Witch lays a curse on her, turning Sophie into a creaky old woman. Sophie knows she has to leave town, and soon finds herself taking shelter in the moving castle of the dread wizard Howl...who is rumored to eat women's hearts!

From Kurosainosa:

Kobayashi, who since childhood dreams of becoming a detective, knocked on the a Aketomo's detective office door. But waiting inside is a collection of handsome men! Apparently, this office also opened a side-job as host club!

Ayaka has a dear friend named Hiroko. Hiroko suddenly vanishes from Ayaka’s life, saying that she must save someone important to her. Since that time, Ayaka hasn’t heard anything from Hiroko, until a girl’s corpse is washed up on shore, and she’s holding a letter from Hiroko which reads: “Come save me.” Ayaka sets off to save her best friend, and ends up in a mysterious school where everything seems too good to be true. Is it?

A group of 15 elite high-school students are gathered at a very special, high-class high school. To graduate from this high school essentially means you'll succeed in life, but graduating is very difficult. The school is presided over by a bear called Monokuma, and he explains to them that their graduation hinges around committing a murder. The only way to graduate is to kill one of your classmates and get away with it. If the other classmates discover the identity of the killer, the killer is the only one executed. However, if they fail to catch the killer, only the killer graduates and the others are annihilated. Which of the 15 will survive the bloodbath to come?

Supplement for the game. Same story but mostly told from the culprits and victims POV, so we will learn more about their motives here.

A mystery about the missing high schooler and a young girl.

From Baka Updates: 在那個地方… 死者追尋生命的陽光, 生者追求死亡的安息。 而那裡就是地獄! At that place... The dead yearn for the life of light The ones alive yearn for the solace of death That place is Hell!

From Anime Waves: Kobayagawa Shio is a "private actress" who works for a production company. She also does personal assignments that needs her to pretend to be a different person. She takes on assignments for people and takes on the personality of the person who they are pretending to be.

What happens when one encounters strange things happening in the modern world?

This manga consists of three stories:

1) First Love.

2) Sleeping Beauty.

3) Ghost Ship.

Fall 1986...in Rokkenjima, a private island owned by Kinz? 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? 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.

The locked-room murder case that all other detectives have given up on!

Mikage has just arrived at a new school. But why can't he remember anything about his life before the moment he set foot in the school grounds? His classmates, while appearing ordinary enough, all possess strange habits and weird personalities.

Soon after, our bewildered protagonist is summoned by one of his teachers, who claims that Mikage has the power to influence a 'parallel universe' - and that his interactions with his classmates will decide the fates of the inhabitants of that universe. Though initially fascinated, he soon finds out that these 'powers' do not bode well for his new school life...