The manga stars the black-silhouetted "criminal" that appears in Detective Conan chapters to represent the mystery culprits.

“I don't want it to end…” Akira had made up his mind to confess his feelings to Himeno, the girl he liked, on the day they graduated elementary school. But what was waiting for him in the classroom was Himeno like he had never seen her before! Before they knew it, Akira and his classmates were trapped inside the school, unable to escape. Who was doing this, and why? Mysterious forces close in on the 11 fearful children, as if to laugh at them. This is the story of a harsh fate that awaits them. Does a hopeful future await them, or an ending filled with despair...?

You can't leave this island until you've killed 100 people. The most deadly survival game begins on a solitary island where desires swirl and only the strongest survive!

From DrCoke at MangaHelpers:
He has never been the type to stand out in the class. Kurihara Yuzuru has lived life by avoiding entering the lives of others, staying to himself. The story begins where he has to go to a whole new school, which means new classmates. He lacks any confidence to make new friends, so the fear of rejection drives him into a wish he never thought he would make. This single wish leads to a first day of class he would never forget. Yuzuru will have to make choices that will significantly alter others' lives, choices he could never make in the past.

The story is set in a Japan that is ravaged by plague-like rust, and details the journey of the strongest mushroom hunter Bisco Akaboshi and young doctor Milo Nekoyanagi and their search for the legendary medicinal mushroom “Sabikui”, believed to be the cure for the rust.

An adolescent ghost story that invites college student's "desire". Drinking parties, looking for clubs, romance... Chigarashi Mahina, a freshman who is busy with her flowery college life, is haunted one night by ghosts after entering an abandoned building. Nights after nights, she had nightmares of her getting raped. She then seeks help from a specialist on campus, Makube Kaoru. That was the beginning of a college life filled with desire and fear...

Countless tombstones stand in rows throughout a small community, forming a bizarre tableau. What fate awaits a brother and sister after a traffic accident in this town of the dead? In another tale, a girl falls silent, her tongue transformed into a slug. Can a friend save her? Then, when a young man moves to a new town, he finds the house next door has only a single window. What does his grotesque neighbor want, calling out to him every evening from that lone window?

Niizuma Tomoki has been re-assigned to the Special Investigations Counter-Measures Unit after her one month suspension. This basement unit only has two others assigned?! The future of police is entrusted in the hands of the pretty-faced young mathematician called Mikoshiba Gakuto. Objectively weighing the truth of cases from a mathematical approach. Clearly and splendidly exposing the depths of the human heart with numbers!

The story centres on the oddities that appear in the distortions within everyday life.

What destiny awaits them after the screaming?

After abruptly departing from a train in a small town, a couple encounters a “weeping woman”—a professional mourner—sobbing inconsolably at a funeral. Mako changes afterward—she can’t stop crying! In another tale, having decided to die together, a couple enters Aokigahara, the infamous suicide forest. What is the shocking otherworldly torrent that they discover there?

One of horror’s greatest talents, Junji Ito beckons readers to join him in an experience of ultimate terror with four transcendently terrifying tales.

From Chinatown KM:

Based on the 40mP million-view hit Vocaloid song Shiryoku Kensa, Miyashita Megumi, also known as "Gumi", was one of the only survivors in a plane crash thirteen years ago. Since then, she has been able to see two copies of every person and one of them always has a "C" on them. Thirteen years later, she now wears glasses, yet her left eye remains a puzzle. And then, her friend goes "missing".

Having reached retirement age, Hiraga Raizou (65) lands a new job that pays extremely well! And it’s top secret!! With no guarantee on your life!!! When he sets out to do the company’s mysterious work, he encounters a little girl at their “workplace” and gets pulled into an incident. Raizou took on the job to pay the medical bills for his grandson’s incurable disease, but what awaits him in this line of work…!? Author of “COPPELION” Inoue Tomonori brings to you an immoral crime action manga!! An elementary school girl and a tough old man team up to rampage through the underworld!!!

(From Fallen Angels)

Oda Teruasa is a high school student gifted with intelligence, good looks and wealth, making him the "perfect scion" of the Oda Group: a powerful conglomerate whose name is known all over Japan. But then he gets caught up in a nightmarish game of winner-takes-all against the son of the Belmont mafia family...

Years after the end of the world, two girls tour the ruins of Japan.

From CMX Manga:
This suspenseful, supernatural series tells the tale of Canon, the only student to escape from a bloody vampire attack that took the lives of her fellow classmates and turned her into one of the undead. Struggling against the terrible needs that compel her, Canon commits herself to use her powers for good and do whatever she can to avenge the deaths of her friends and her own terrible fate. Joining forces with a talking, vampire crow, she begins her quest to find Rodd, Lord of the Vampires.

"In this village, death inevitably takes those who have reached 50 years of age."

By custom, all villagers who have passed the age of 50 are bound and taken to The Netherworld on the other side of the mountain. Officials clad in beast skins manage the village, "The Living World," whose people are watched over by gods. Meanwhile, the People of the Mountain remain shrouded in mystery. Anzu, who sacrificed the older of twin girls to the mountain, is torn between hope and despair.

Land, a story that reflects Yamashita Kazumi's unease for the nation of Japan.

The manga centers around a certain boy who lives alone away from people, but harbors a special dream. One day, he meets a lone girl, and the story begins as he becomes part of the girl's destiny.

At first glance, it's a four-panel comic that doesn't seem like much at all. However, when you read the last panel, the world changes completely!? When you turn the page, there is a newly drawn explanatory page. Mystery and horror that can be enjoyed by both children and adults. A collection of gems of short stories that will leave the world horrified by Aki Konishi, a master of 4-panel manga.

When a demon falls for an angel...

Long ago, a great war raged between the royal military forces of Lugnica and the demi-humans. A hero was born on that battlefield--the Sword Demon, Wilhelm Trias. This is the story of that legendary swordsman--and the woman he loved.

Yamato runs a detective agency that will use any means to get the job done, no matter how unconventional. His three misfit employees are more than his teammates, they’re his family too. Also tells the dramatic and surprising story of Yamato’s past.

Q likes eating monsters and donuts, a lot.