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.

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.

Inaho knows a lot about various bugs and uses this knowledge to solve various mysteries.

[From SnowKiss]: Aiko should be dead, but when she awakes in a secret hospital, she has no recollection of what happened that night until a monster showed up and her memories flood back. Her arm changed into a powerful weapon similar to the monster, a chimera arm. The secret organization Atheos asked her to help them fight off the chimeras. An accident happened that led Aiko to understand how much she wants to live, and decided to join Atheos, in order to find her place.

Kurôzu-cho, a small fogbound town on the coast of Japan, is cursed. According to Shuichi Saito, the withdrawn boyfriend of teenager Kirie Goshima, their town is haunted not by a person or being but by a pattern: uzumaki, the spiral, the hypnotic secret shape of the world. It manifests itself in small ways: seashells, ferns, whirlpools in water, whirlwinds in air. And in large ways: the spiral marks on people's bodies, the insane obsessions of Shuichi's father, the voice from the cochlea in your inner ear. As the madness spreads, the inhabitants of Kurôzu-cho are pulled ever deeper, as if into a whirlpool from which there is no return... - Viz

From WoC Scans: Collection of mysterious stories by Chie Shinohara, a great artist of suspense manga. Story 01 Part 01 & 02: 海に堕ちるツバメ (Umi ni Ochiru Tsubame - Swallow Falling into the Sea) Masako Minase, a scriptwriter, was murdered by Shiki Morimura, her rival in the same profession. Shiki was sure that she had destroyed evidence completely. However, someone who knew the truth appeared, and tried to get Shiki in his power. Is it a mysterious spot or unhappy desire that lurks in her mind? It was also published in Akatsuki ni Tatsu Lion (bunkoban version) Story 02: 記憶の足音 (Kioku no Ashioto - The Footsteps of Memory) This is the story about Shouko and the almost tragic moment that changed her life and emotions ... It was also published in Akatsuki ni Tatsu Lion (bunkoban version). Story 03: 死刑台の72時間 (Shikeidai no 72-jikan - 72 hours of death stand) Five young people receives a letter saying that they murdered someone and they must go to the address in the letter if they don't want other people to found out. They all find themselves in a old European house, where a crazy lady tells them that one of them is a murder and if that murder don't confess in 72 hours, they will all die. It was also published in Toubou Kyuukou (bunkoban version).

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. (Wikipedia)

From Hyper Parfait: After World War III, the Führer established the Unified World Government. Anything considered as damaging to the creation of the “Perfect World” is eliminated, such as people with disabilities, believers of a different religion, those that are considered as “traitors”, and so on. The Black Rose is the personal protection guard unit of the Führer. Luka Ogami, the top graduate of the academy of unified army officers, joins the Black Rose…. to save the world.

It’s the early days of the Showa Era. In a really ordinary-looking and peaceful city, no one notices the strange things that are happening. Shinobu, a young man who manages his father’s second-hand goods store, comes face to face with one mystery after another. At some point, these events lead to a story…

Tokage, a soul cursed to forever wander the world, unable to rest nor to join the reincarnation cycle, is now looking for its release. This time Tokage enters the body of a newly dead girl named Yuuka, a shrine maiden. This body requires continual recharging from a highly spiritual person, whom the dead person must have had an attachment to. This person is Shinobu, a younger boy, who also lives in that shrine. Thus starts the adventures of Tokage and Shinobu in a world gone mad, amidst the chaos and carnage that gravitates to an unsent soul draw.

From A Duck's Paradise: Doppelgangers. Mice that take the form of humans. With murderous intent, the look-alikes and the originals are both pressured to fight in their own ways. After an ambiguous event in their life, Jin-Uk and So-Hee's love life has been shattered. While trying to reconcile with her, Ji-Suk meets her look-alike, and that's how this story starts. What will he do when he, too, has a look-alike destined to kill him? And what's the secret So-Hee will never tell?

From Manga Updates 1943 Manju. Kim Ui-ryong, known as the perfect marksman was given a secret order from the superiors of the independence army. Armed with explosives around his body, he infiltrated a secret Japanese government operation and witnessed a ceremony upholding an old bronze sword. Just as his mission required, he destroyed the bronze sword and died. Korea, 60 years later. Culture Professor Bae Reta, a 2nd generation Korean-American was asked to participate in a secret auction where she witnessed a gun. From a glance, it looked like just any old gun used in Manju independence movement. However, ones after the gun appears at the scene and quickly turns it into a bloodbath. And Prof. Bae, left alone with the gun witnesses everything... - Translations by Grumpy from The Company

Dark fantasy story follows a boy named Muoru who has been falsely arrested and sent to a cemetery to perform forced labor. There, he calls himself the "grave keeper" and meets a beautiful girl named Meria. Muoru becomes fascinated with Meria as he spends his days digging a hole containing the undead monster named "The Dark."

Updating

A girl runs away from home, pretending to have been kidnapped.

14-year-old Eriko finds herself left in charge of her younger brother Daigo when their parents suddenly disappear one warm summer evening. Trapped in a world that is very much like their own save for the lack of their parents, Eriko and Daigo find themselves desperate to return to the worrywart mother and apathetic father they never thought they'd miss so badly...

From: Easy Going Scans Officer Park Yoon Hee is a beautiful young detective who has high hopes of being accepted in the Violent Crime Division. However, her father and chief of police, has other plans for her… so instead of the Violent Crime Division he assigns her on the Unsolved Crime Division were nothing ever gets done and there is only 2 staff members including her! The excitement that she most eagerly longs for though, is about to barge in her life when she will meet a mysterious boy… Original webcomic

Strange suicides have been taking place in New York. One day, four girls from the same high school wake up in the morning feeling tired and dizzy and not being able to remember anything about the previous night. In school, they find out that one of their classmates has committed suicide. School is canceled for the rest of the day, but instead of going home, the girls are drawn to a park by butterflies only they can see. Suddenly a man and a woman approach the girls, telling them that they all died the previous night. (Source: ANN)

From Amazon.com: Any pairing of two masterminds can elicit murmurs of approval—or of apprehension. But all readers can rest assured that in this case, the pairing of seinen manga suspense master Urasawa and legendary cartoonist Tezuka is a very, very good thing. In a distant future where sentient humanoid robots pass for human, someone or some thing is out to destroy the seven great robots of the world. Europol’s top detective Gesicht is assigned to investigate these mysterious robot serial murders—the only catch is that he himself is one of the seven targets.

A string of high school students have all been mysteriously murdered by being burned to death upon where water was evidently present. Junior High student Shirogane, a PSI (Paranormal Special Investigator) officer, takes action to solve this bizarre phenomenon. Upon questioning possible suspect Kirisaki Kirio, she discovers that he has the ability of electrocution! What other things will Shirogane unravel while dealing with this case of murders?

A girl is saved by a fox and goes on an extraordinary adventure.

Normal City is set in the far future where mankind exists on other planets. The existence of ESPs is accepted- but only as a "tool" for the army. The main character's name, "Kitty 101", was given to her by a scientist named Troll. Kitty 101 was biologically created by combining several strings of DNA with man-made DNA. She was also given an XY chromosome which turns her into a male on a regular basis. When she was a baby, Kitty 101 was stolen by one of Troll's scientists, Jason Haven, who wanted to save her from the experiments. He named her Mars Haven and brought her up as his own daughter because she reminded him of his lost daughter. Time passes, and Troll proceeds with his experiments on the ESPs under his disposal.

One day, Yuuri, a pretty high-school girl, is asked by a stranger to attend the funeral of Hirose Takaya saying he had really liked her. Who was this guy, and why did he like her?

Tucked away in the mountains and cut off from the rest of the world, Rosa Academy is your typical boarding school... at least on the surface. Like most schools, it has its share of urban legends. But, as Raum and his friends—Tulli, Yan, and Karel—are to find out, there is more to Rosa Academy's legends than meets the eye...