From Shoujo Manga Maniac:
Katsuyuki, a gifted, petty and egocentric high schooler, intends to work in the high financial world. His well regulated life explodes when his mother remarries his worst nightmare: a traveller writer, unproductive, nice and completely unpredictable and father of a son who looks like him. All his opposite. Consequently begins the subtle contamination of his entourage by their terrible joie de vivre. Even Nagasawa "the female brain of the high school", the only one for which he had respect for decided to find anew his peace. Katsuyuki feverishly seeks a way for returning these aliens on their planet and he's not sparing with spite.

From Yen Press:

Abandoned as a baby and raised in an orphanage, the kind-hearted high-schooler Yuki Sakuragi is driven by a need to find the reason for his existence. Plagued by mysterious dreams, Yuki also possesses the strange ability to read the deepest, darkest thoughts of anyone he touches.

As both the dreams and his powers intensify, there appears before him a beautiful young man named “Zess,” whose face tugs on Yuki’s memory. He warns Yuki not to venture outside on Walpurgis Night, the eve of the blood-red moon, which invites death.

But when Yuki’s compassion leads him to disobey Zess’s order, has Yuki carelessly thrown his life away before he’s even given himself the chance to find out the very reason for it?

Part of the Umineko When They Cry franchise. This side-story takes place outside the main story.

The story expands on the use of the Purple Declaration introduced by Bernkastel in Twilight of the Golden Witch. The Red Truth still applies in this game even though there are lesser than usual games. Knox's rules are stated in red to show that it is valid in this game.

A collection of one-shots by manga-ka Tamura Yumi.

1) X-Day:
4 short depictions of tragic misunderstandings and their consequences.

2) 4nin no Onna:
A very famous, rich, old hotel owner is found dead and when the police come to investigate, his long-time maid says that her master was killed by 4 women...

3) Kanojo wa Dare wo Koroshitaka:
A woman is found covered in blood walking through the streets of Tokyo. When questioned by a policeman, she utters that she has killed someone. To figure out what happened, the officer begins to read her intriguing diary...

4) Hirotta Otoko:
The five members of Maki's family are so picture perfect that they even star in heart-warming commercials advertising food and a happy, loving family. But what are they really like beneath the surface? They're forced to find out when they pick up a mysterious guy named George, who they almost run over by car on their way to their winter lodge...

From MangaHelpers: Luca's friend Will, who is from a lower-class segment of society, has gone missing. Luca's only clue to find his friend is his fondness for a certain club in the entertainment district, where a woman named Yue performs. Will had always said they should go there together sometime. When Luca goes down alone to try to speak to Yue, though, he ends up being beaten badly. Luckily, Yue herself finds him, and takes him to her friend Takaomi to be patched up. It soon becomes clear that Will has fallen victim to a chimera sickness that is becoming common in the lower classes. Luca is determined to find his friend, and to save him. [tethysdust]

In a small Nepalese shop, Makoto Fukamachi, photographer for a Japanese expedition to conquer Mt. Everest, stumbles across a camera which may well be that of George Mallory, the celebrated mountain climber who was the first to attempt conquering Everest.
Mallory disappeared along with Andrew Irvine during the course of their ascent in 1924, without leaving any indication of whether they reached the summit or not.
So, what if it was only on their return trip that they had their fatal accident?

Note: Won a prize for excellence by the Agency for Cultural Affairs at the Japan Media Arts Festival in 2001, received a nomination for Ignatz Award for Outstanding Graphic Novel and Outstanding Series in 2010 and the fourth volume was nominated at the 2014 Eisner Award in the category "Best U.S. Edition of International Material - Asia".

"I have my eyes on him, only him." Ming ZiQi's attention was drawn to Xiao Luo on his first day as a supervisor in practice. But as a simple murder case becomes something much more, it is time to seek out the truth?

A manga adaptation of the game Magia Record, a spinoff of Mahou Shoujo Madoka Magica.

It follows the story of the magical girl Tamaki Iroha going to Kamihama City to search for someone...

From Tokyopop:

Kindaichi (frequently with best-bud, Miyuki) travels to various places where a murder has taken place, typically involving ghosts, curses, myths and folklore of significant events from the distant past, and solves the mystery using ingenious deductions of curious clues and his cool magic.

In 1995, this manga won the Kodansha Manga Award for shounen.

History isn't Tokidoki's strong subject. He's even forced to do make-up work at a high-tech history museum to bring up his failing grades. After losing an eye to a virtual reality monster in an Edo-period simulation, he finds himself unable to leave the game. Could it be real?

It all started with a "net cafe." The hero Toki Koichi is a soon-to-be father leading a complacent life. One day, he happens to stop by an internet cafe, and there he bumps into Kaho, his first love from his junior high school days. Having just fought with his wife, Koichi's heart is filled with his old feelings. All of a sudden, a strange wave flows through the computers and cell phones in the net cafe, and the entire place blacks out, just before rain begins to pour outside. Unable to leave safely, both Koichi and Kaho stay overnight at the net cafe. The next morning, when they step outside, they find the world is completely different. Koichi is determined to find out why the entire cafe has transported him to a different world, and to return to his family in the original world. As he fights against various fears and tries to solve the mystery, people start to disappear one after another. Can they all survive through such a crisis and what is the secret of his first love with Kaho?

2022, Japan's non-workers regeneration method has been established. A person who does not have income for more than six months, is subject to a treatment where they rewrite their brain at a regeneration treatment facility. Tatsuya Kamijo was working in a foreign-owned investment company. One day he loses his job, but six months later, Tatsuya is sent to a concentration camp rather than a playback facility. There he is subjected to worse treatment than brainwashing and training. Why was Tatsuya sent there?

High school student Shintou Shou, son of the Superintendent General of the Tokyo Metropolitan Police, is known for his uncanny ability to solve even the most difficult cases. However, reality is much more prosaic: Shou's brilliant deductions are based on solid proof and confessions obtained through the efforts of Special Investigations Division 13, which excels in the use of torture for interrogation purposes.

Chang Sheng's adaption of “Nine Lives Man” is here for the 30th anniversary! The story follows Meng Jiu Ge (Nine Lives Men) as what seems like a chance encounter with a homeless man leads him to understand that his life is only one of many He will live as he tries to understand the destruction of the city and those mysterious masked people that visited him.

Qin Yun, the inheritance of Jiuyang, awakened the world of martial arts, learning skills of the world

A series of short stories with an element of fantasy set in Victorian England and centering on Cornelius Everdeanne, a young, handsome heir to an earldom.

Wrapped in snow and ice, a country of severe winter. In the country that has lost its spring, the populace freeze, starve, and compete amongst themselves for rations to live another day. When a girl who hides in herself an earnest desire and an old knight that is wanted by the country meet in a hellish world, an adventure that will overturn the world begins. With the kingdom as their enemy, they will take back everything that was stolen.

From MangaHelpers:

Supernatural creatures live alongside humans, but these "rares" are being hunted to extinction over time. An organization is being formed to protect these rares, and allow them to live their lives as they like. The starting members of this organization are few; there's the masked Fukumen, the Black Vampyr king AxL, and they are soon joined by the sweet-voiced mermaid Mirror. Together, they will protect the rares from the deadly hunters! [tethysdust]

Having returned to college after a year long break, Hong Sul, a hard-working over-achiever, inadvertently got on the wrong side of a suspiciously perfect senior named Yoo Jung. From then on, her life took a turn for the worse - and Sul was almost certain it was all Jung's doing. So why is he suddenly acting so friendly a year later?