From Peccatore Sanctuary:

Murakami Keisuke possesses beauty which cannot be missed, many people admire him due to his beauty. But he has never accepted any one of these people. One day student council president Masaki, due to some incident started to become close to him...

Yukiteru "Yuki" Amano is a loner who never really interacts with people and prefers writing a diary on his cell phone with his imaginary friends Deus Ex Machina, the God of Time and Space, and Muru Muru, Deus's servant.
However, Yuki soon learns that Deus is real when he makes Yuki participate in a battle royal with eleven other people. Within this "Diary Game," the contestants are given special diaries that can predict the future, with each diary having unique features that gives them both advantages and disadvantages.
The rules of the game are simple: the contestants have 90 days to find and kill all the other contestants, and the last one standing will become the new God of Time and Space

Kidou Ryodan Hachifukujin is set in the near future where Japan has been subjugated by China and now fights against its former ally America under the Chinese banner. Fukujin, literally “luck god,” are advanced armor suits that are impervious to most conventional weapons. The story follows new recruits in the army of Japan, in a war-torn future.

An eccentric girl, a pacifistic guy, and the Fukujin figure in a story about war, violence, and militaristic subservience.

From Viz:

Are the woes of the present meant to be endured for the promise of a better future or to atone for past wrongs? In a captivating epic of love, fate, and faith, seven young people must struggle with this spiritual puzzle as their alien past lives threaten the future.

Saitou is a young doctor who just graduated. Starting his career as a doctor he finds there is a lot more to this profession than one would think. An intense drama about the dark side of the medical world. -- Manga Updates

A highschool girl stands at the edge of a building, about to take her own life. She then witnesses a brutal stabbing down below by a hooded man. She is instilled with fear at the mysterious man's cold bloodedness, cowering as he suddenly appears on the roof.

Nitogi Amane and Utsuya Madoka became first met in middle school. But one tiny, yet fatal mistake ends up costing Amane more than just her seemingly innocent best friend...

Collection of short stories, including;

- Flower
- Memories
- SOUND OF SAND
- Farewell To Weapons
- Hair
- Electric Bird Land
- MINOR SWING
- Chronicle of The Planet TAKO
- Chronicle of The Planet TAKO, Chapter of Dawnlight
- Fire-ball
- That's Amazing World - Magic pot of Aladdin
- That's Amazing World - Noah's Ark
- That's Amazing World - old man and sea
- That's Amazing World - Knights of The Round Table

From Evil Flowers:

1-3) Hana wa Knife o Mi ni Matou
Kako Saeki is a senior in high school. She has been modeling and harboring her love for her favorite art teacher, Enjoe. Her heart breaks when she finds out that her love is actually engaged. Now, Kako's innocent love takes a dangerous turn when she finds out who he's engaged to...

4) Yori-chan's Feelings
An insight of how Yori-chan, Kako's big sister, is thinking.

5) Beautiful World
Near the Ipson village, if you venture into the forest, you’ll meet a lonely demon. If he talks to you, he’s going to tell you your fortune, but don’t expect it to be something good. This demon has been named by the villagers “the insulting fortune teller”. One day, a beautiful red-haired girl named Alice becomes this demon’s friend. He doesn’t want to look into her future, but he might need to…

From Yaoi Is Life:

Volume 1 :
Inside a crowed train, a punk boy, You, is for some reason protected by a (dotekaku kakkou ii) B-boy. The B-boy, Makino, carries away with him a precious ‘stone’ that You had unknowingly dropped. He comes to ask You, who had ended up moving in Makino’s home after much confusion, if he has any memory of himself. Has he met Makino is the past?! You was is shock, but…

Natsumi just lost her younger sister, Haru to chemotherapy. As her sister's coffin finally closes for the last time she whispers "wait for me until I join you", but Haru's finace, Tougo has other plans which might mend both their hearts.

Tomioka Yuji is a 32-year-old night-shift guard for a mall. He works completely alone, so he often slacks off, exercising and hanging out on the roof. In some ways, the job is perfect for him, as he's always been terrible with people. However, he can't help feeling incredibly lonely and wishing he had friends.
One night, he makes a wish for friendship on a falling star. Shortly after, he finds a strange note left at the door of the mall. It says, "within a year, you'll go mad and die." After this, his solitary life begins to change--some ways for the better, and some for the worse. At work, he notices an ominous silhouette in a nearby apartment building, watching him neglect his job.
Who is the mysterious figure? Who sent him the creepy note, and why?

An ordinary girl with a flute through her head! Mundane days of "kill or be killed"! Short stories loaded with love and dream and dead people, start now! Source: http://www.u17.com/comic/16179.html

Kiriya Rinji is 30 years old, divorced, and unemployed. His only talent is playing online mahjong. Needing a way to make money to pay for child support, he goes to the seedy Kabukichou district to play real mahjong for cash. Will his online skills translate to real-life winnings?

Hiro's brother Atsuya is dating Hiro's childhood friend and secret crush Hikari. Hiro's affection for Hikari will lead him to commit an un-punishable crime against his older brother. At least, he thinks it is un-punishable, until he is kidnapped and imprisoned by a group of people wearing animal masks. The judging is about to start! Basicly same principles of "gore Game of concealed murderer" as in Doubt.

It's the era of the Three Kingdoms.

Warlords and their tacticians are indispensable to one another during wartime. This is the story of such general-strategist duos from the infamous Sangokushi.

A one-shot special of the sci-fi classic, “Alien 9”! Otani Yuri is 18 years old and has no idea what to do with her future...but she doubts working for her senpai’s “Alien Countermeasures Company” is the answer!

As kids, Rei always protected her best friend, Ichino. After being separated for eight years though, their roles have reversed: Rei is now bullied by the girls in class and Ichino is more outgoing. But Ichino says she’s become stronger for Rei’s sake, so she’ll protect Rei no matter what...

The morning after a somewhat wild party, Uichirou wakes up to find a stranger named Makoto in his bed. One thing leads to another and they end up becoming casual sex partners, but...

Follows the rather tempestuous relationship of two writers and touches on the lives of those they interact with. Both those that hate and/or envy them and those that love and/or like them. Not a modern story, it seems to be set at least several decades ago, before computers at least. Despite this, it doesn't have a dusty, out-of-date feel to it, more like a slow-tempo modern story. Vol.1 Hitodenashi no Koi (1999) Vol.2 Itooshii Hito (2000) Vol.3 Omoware Bito (2001) Vol.4 Hitori ni Shinai (2002) Vol.5 Aisareru Hito (2004) -officially dropped by Game Over or Continue after finishing up v2-