From Yen Press:

Each year, the Ushiromiya family gathers at the secluded mansion of its patriarch, the elderly Kinzo. It has been six years since Battler joined his cousins at the annual event, but their happy reunion is overshadowed by worsening weather and an eerie premonition from his youngest cousin. When their parents’ conversation turns to the division of the inheritance upon Kinzo’s imminent death, Battler and his cousins reminisce about the stories their parents teased them with as children-tales of the witch, Beatrice, who haunts the island’s forest. But when people start dying unnatural deaths, Battler can’t help but wonder…

Question Arc
1. Umineko When They Cry Episode 1: Legend of the Golden Witch
2. Umineko When They Cry Episode 2: Turn of the Golden Witch
3. Umineko When They Cry Episode 3: Banquet of the Golden Witch
4. Umineko When They Cry Episode 4: Alliance of the Golden Witch

Answer Arc
5. Umineko When They Cry Episode 5: End of the Golden Witch
6. Umineko When They Cry Episode 6: Dawn of the Golden Witch
7. Umineko When They Cry Episode 7: Requiem of the Golden Witch
8. Umineko When They Cry Episode 8: Twilight of the Golden Witch

The side story arcs are:
- Umineko Biyori
- [m]Umineko no Naku Utage ni: Tea Party of the Witches[/m]
- Umineko no Naku Koro ni Episode X
- Umineko no Naku Koro ni Tsubasa
- Ougon Musoukyoku
- Umineko no Naku Koro ni Shi: Forgery of the Purple Logic

Another Earth has been discovered by an astrologer in the US, giving it the name "Jamais Vu," French for "Never Seen."

That Earth is soon discovered to be a group of aliens, going around the galaxy before arriving in the actual Earth to kill people and appear like them.

Main chara is originally the Japanese country voted as a talented player red star hawk. After leaving national sports team for period of time, he joined the youth army once more for the world blue cup. Facing powerful enemy from various countries, how to overcome the difficulty and obtain the world blue cup?

From SCX-Scans:

Once upon a time, there was a courtesan who fell in love with an impoverished Noh-mask maker. However, when her lover rejected her, the courtesan threw herself from a bridge in dispair. She left behind a note cursing him and his descendents. In current day one of that man’s decendents, Izou, discovers that the guardian mask at his temple has cracked and the ghost of the past has come back for her lover.

Sayoko was just reading peacefully in her backyard, waiting for her relative Iyahaya Nantomo to arrive, when some homeless kid in a large overcoat suddenly comes in and says he's Iyahaya Nantomo (?) and runs off. The guards catch him and bring him in, but then it's revealed they've made a mistake and technically kidnapped him! So to save face the boy has to pose as Iyahaya Nantomo...or else!

From DrMaster:

Hiro is a high-school student refusing to go to school after a traumatic run-in with the local bullies. But his feeble life is forever changed when, one day, he applies online for a new gadget called "JUNK".

[Taken from PRISMS]

Collection of Short Stories:
One story is about a pair of lovers who are always quarrelling and who won't admit that they're suited for each other. But their future daughter comes and helps them realize their love. There are also two early City Hunter stories in this book.
1. Tenshi no Okurimono (The Angel's Gift)
2. Ore wa Otoko da!
3. Neko-manma okawari
4. City Hunter - XYZ
5. City Hunter - Double Edge

Misaki is a 30-year-old virgin who has a bit of a crush on one of his co-workers, a pretty girl named Amano, but he has no experience and no clue what to do. Fortunately for him, he has an ecchi guardian angel…

From CoyoMoose:

Amushasu, of the Alaturca Alagun performing troupe, believes in magic created by talent and hard work to reach the hearts of his audience. He does not have any respect for the magic of genies, though he does happen to own a very dissatisfied one named Mayu. His faith in his ability to sway a crowd is threatened, however, when he comes across a beautiful young lady whose heart appears to be untouchable.

In this city, there is a legendary thief. An eccentric thief who lived down through the generations. A story that's told for generations. His name is Mugensai Ishikawa.

From Yen Press:

Kazuto Kirigaya (aka Kirito) has survived the death game of Aincrad masterminded by Akihiko Kayaba, programmer of Sword Art Online, and made it back to the real world. Unfortunately, the same cannot be said for Asuna Yuuki (aka Asuna the Flash), the girl Kirito fell in love with in the game world and who has yet to awaken from her seemingly endless slumber. As his sister, Suguha, sadly looks on, Kazuto continues to visit Asuna in the hospital in the hope of finding answers... But one day, the answers suddenly find him in the form of a man who claims to be Asuna's fiancé?! With him, the man brings an in-game screenshot of someone who looks a lot like Asuna being held captive! Now Kirito must dive into an all-new VRMMORPG, ALfheim Online, to bring Asuna home!!

"30,000 residents of the Northern Kelko plains were vaporized by the Kiyania bioweapon sprayed by the terrorist group Echiboza. 30,000 cats remained in their place. However, one person escaped this fate; a girl saved by a stranger with a gas mask.

Her name: Kaka Hollen."

In this strange new world, terrorism, crime, and corruption have found a new target in the feline kind. Enter counter-terrorism squad 'Green' and their all-purpose humanoid weapons, the 'OB's! But what role will Kaka play in midst of all this?

N/A

Chu Ming Yang is an extremely unfortunate high school student who accidentally enrolls into an academy of a dubious nature, where it is the norm to jump in front of moving trains, get dismembered during orientation, and crushed by vindictive bouncing classrooms. Can he stay alive or will he die from the rigors of school? Why have evil spirits suddenly acquired a taste for his flesh?

This manga deals with the history of a teenager, Tobi Shima Sen, who lost his father and lives with his mother. He is a scrapper but his mother has no authority over him. In order to educate him, she decides to send him to a kickboxing coach during the holidays/vacation.

A dramatic story set in contemporary Japan, about a guy with amnesia, who finds out he was turned into a super-cyborg in a corporate weapon research program. He goes on a mission of revenge. A little shallow, perhaps, but a good example of shounen SF/action manga. The manga ended abruptly, because the magazine it was being serialized in changed its target public and it was decided that Xenon didn't fit in anymore.

Tomas has a very very hard sucking life. After years of humiliation from two bullies from the school, he finally has his give it back: he calls a number that offer a service of 'beating bullies for money'. But the dumbass dials the wrong number and the call goes to a expert and pro assassin's agency. And thinking he's calling right, Tomás gives all your personal information and makes the deal. Then Jack, a clumsy weird assassin comes to 'protect him', making sucker Tomás' rotine a little more suckered...