Okitegami Kyouko is a famous detective who solves cases in a single day. In fact, she has to, since her memories only last for one day before they 'reset.' However, for important things, she writes messages for herself down on her body with a special pen. One of her common clients is Kakushidate Yakusuke, a man who is often wrongly suspected of committing crimes.

In a world where elves, dwarves, and invisible dragons live in harmony inside a metropolitan city, Jig sets out to find someone or something that can unleash the curse that he carries on his back. As he attempts to survive in the city of Jinbocho, a city filled with fantastic secrets and organizations, he encounters many powerful individuals who set out to either destroy him or save him. Will Jig be able to discover the true secret of his curse, or will it lead him to his own demise?

There once was an ayakashi called Karma who challenged his victims to a battle of wits. If the subject succeeded, the ayakashi would grant them one wish, but if they lost, he would devour their soul. At the same time, there was a young monk called Hanasaku Ikkyuu, who was famed for his cleverness. He used to eagerly sharpen his mind, solving challenging riddles sent to him, until his mother fell ill. When he found that his cleverness was of no use in helping her, he gave it up.

Karma seeks out Ikkyuu, eager to best him in a battle of wits and consume his soul. One day, Ikkyuu rescued a young beggar boy, only to see him fall ill with a mysterious illness. That same day, Karma finally finds Ikkyuu and offers him his dangerous bargain. Thanks to Karma, will Ikkyuu finally have a way to use his cleverness to help the people around him?

In the Ichinose household, three sisters live together. The oldest, Hinano, is pretty, friendly, and easygoing. However, she's also rather messy and lazy in her personal life. The middle sister, Ichino, is stern and easy to anger, but she's incredibly hardworking and does a lot of the chores and cooking around the house. The littlest sister, Satsukino, is a lovable little girl who adores animals and wants to be a vet when she grows up. Together, they live with their frightening, listless, abusive mother.

One day, Satsukino takes in a big, fat, talking cat. After the three sisters convince their mother to let them keep it, they name it Tonnura-san. But what is this mysterious cat, and where does it come from? How will the lives of the Ichinose girls change now that they've accepted Tonnura-san into their family?

From Easy Going Scans:

Crimes commited using manned combat-androids dubbed "Katana" run rampant.
In an effort to maintain order, the government has organized the AKCD - "Anti Katana Crime Division."
Togusa of the 8th squad of the AKCD, while holding existential doubts as a Human-Katana hybrid, continually casts himself into battle...

Nikaido Hiroshi and his two brothers each inherit 100 million yen. Who will become the sucessor to the Nikaido Tycoon? None other than the son that uses the money the best. So how does young Hiroshi use his money well? Stocks? Of course not. He goes straight down to Vegas and starts playing poker.

A spin-off manga created by Toyotarou, and based on the arcade game Dragon Ball Heroes. It debuted in the November 2012 edition of V-Jump, the release date of which was October 20, 2012.

http://dragonball.wikia.com/wiki/Dragon_Ball_Heroes:_Victory_Mission

The new manga will tell "after stories" about the characters, including Masamune, Aki, and Yoshino, among others.

Gen Shiomi, the 56-year-old boss of the Hitotsubashi mob syndicate, must go into hiding to protect his life from potential assassins. He opts to get plastic surgery, only to end up looking like a teenage girl, but he resolves to stay like this until his life is no longer in danger. However, he finds it hard to not be suspicious, but he is saved from being the target of police by a teenage boy named Tatsuya Umemiya. After helping Tatsuya out of some troubles of his own, Gen is forced to enroll into junior high school as "Shiomi Iwao", only to discover that one of his new classmates is Tatsuya.

Years after the country defeat and occupation period, Japan is still recovering. Although they are on the road back to mass industrialization and prosperity, strong handed economic and political policies have turned many areas into dilapidated slums. Anarchists and anti-government student protesters have taken up arms, stirring up violent social revolution riots. In order to combat this growing threat, the Japanese government has nationalized a division of the police, creating the Capital Police Organization (CAPO). The CAPO consists of hard-trained panzer troopers carrying heavy firearms and wearing special armor suits called Protect Gear, this specialized unit is feared by anti-government groups, criminals and civilians alike.

Note: Loosely adapted into the anime movie Jin-Roh: The Wolf Brigade in 1999 which is also written by Mamoru Oshii.

Nozomu Itoshiki is depressed. Very depressed.
He’s certifiably suicidal, but he’s also the beloved schoolteacher of a class of unique students, each charming in her own way: The stalker. The shut-in. The obsessive-compulsive. The girl who comes to class every day with strange bruises. And Kafuka, the most optimistic girl in the world, who knows that every cloud has a silver lining. For all of them, it’s a special time, when the right teacher can have a lasting positive effect on their lives. But is that teacher Itoshiki, a.k.a. Zetsubou-sensei, who just wants to find the perfect place to die?

Note: Won the 31st Kodansha Manga Award in the Shounen category in 2007 (shared with Dear Boys - Act II).

After Wiz wastes all the money Vanir made from Kazuma’s patents on high quality Manatite, Vanir is forced to take up a job in consulting to pay the monthly rent of the shop.
Aqua couldn’t fall asleep, and decided to invade Wiz’s shop to inquire about her and Vanir’s past.
Various characters consult Vanir for help.

He struggles for influence between the emperors and nobles, the fight for power between the underworld and imperial court. During these prosperous times, how will the fates of the people play out

Jong Hyun Ho has an unusual ability. He has the ability to read peoples thoughts when he is touched by them. But having this ability is not all fun and games. Jong Hyun Ho finds this ability very troublesome, and he doesn't like being near people. His ultimate goal is to make a lot of money and be rich and alone all his life. But one day a Shinigami appears, popping out his computer screen and proposing a job which he needs to fulfill in order to keep his soul.

BOZEBEATS is a "priest expelling demons action" story that centers on a priest (bōzu) who lives alone on a strange mountain, when he meets a young man who was raised by wolves. [ANN]

The Masters of Murim lives hiding in plain sight!
But robot humans are hunting them down!
A random boy gets caught in middle of all this and this is his survival story!

Professor Lili, accepted a strange task in order to raise funds for his research! After the death of his wife, Mr. Vektor has been sitting in front of her painting motionless for the past 10 years without any movement. Exactly what's happening with him?

From Stiletto Heels: When Midou Ginnosuke lost both parents at the age of ten, his grandmother decides to take him in. He goes to live with her and her pet cat, Anzu. Life was peaceful for a time and all was right with the world, until he wakes up one morning and discovers that the girl with cat ears lying beside him is none other than Anzu, who has transformed into a nekomata (two-tailed monster cat).

Masaki Kenshi was taken from his home and was sent with a combat suit to assassinate the young queen Rashara. His mission was unsuccessful and he was captured and would have been typically executed for such a crime. However, Rashara, seeing that Kenshi was forced to carry out such a mission, pardons his life. She allows him to stay at the pilot academy and he becomes friends with many of the women surrounding Rashara. However, there are deep secrets that may threaten the comfortable life that Kenshi is living right now.

Class-president Sakura Teshigawara tries to get the new transfer student Shosuke Samon to join a club or found his own as he is always alone in class. He got off the wrong foot with the class after claiming that his favorite Hobby was "summoning Demons".
Samon becomes interested in her after he learns of her being a "good person" including her image as an Angel. So he invites her to the roof to talk about something. Thinking he is about to confess his love she gets excited at first, until he tells her that he hates her because she is such a busy-body and a goody-two-shoes. That would be the end of it, if not for a small detail: Samon can actually summon Demons and decides to get her to show her true colors by saddling her with Demons to tempt her into acting slothful or gluttonous for example. Watching greedy people getting corrupted by demons is a favorite past-time of his after all. As the Demon world is pissed at Samon because he summons Demons so often, Assassins are sent after him and his perceived associates.
He defends Teshigawara from one such attack, because he wants to witness her downfall and a violent death is too boring.