From Anime News Network:
The story begins in the distant future in the far reaches of the galaxy. The Human Galactic Alliance has been constantly fighting for its survival against a grotesque race of beings called "Hidiaazu." During an intense battle, the young lieutenant Ledo and his humanoid mobile weapon Chamber are swallowed up into a distortion of time and space.
Waking from his artificially induced hibernation, Ledo realizes that he has arrived on Earth, the planet on the lost frontier. On this planet that was completely flooded by the seas, people live in fleets of giant ships, salvaging relics from the seas' depths in order to survive. Ledo arrives on one of the fleets called Gargantia. With no knowledge of the planet's history or culture, he is forced to live alongside Amy, a 15-year-old girl who serves as a messenger aboard the Gargantia fleet. To Ledo, who has lived a life where he knows nothing but fighting, these days of peace continue to surprise him.

The story begins in the near future, where a social mobile network called the "Kizuna-Topia" (Bonds-Topia) controls all communication and surveillance in the wall-bound city.
In this city, two sisters, Enna and Yayako, come face to face with the ongoing man-hunt for young, healthy children. The kidnappers take these kids to the white tower to extract their brains and sell their bodies. This man-hunt, led by the local police known as the "Jikei," is counteracted by the mysterious being only known as "The Witch." Enna, Yayako, and other residents of this city are trapped between the ongoing conflict between the Jikei and The Witch.

Future-Retro Hero Story is set in the same universe as Outlaw Star--in fact, it is the origins of the Towards Stars setting. A pulp science-fiction series with plenty of humor, action, and adventure to go around, it's the story of Juji Godoh and the ship he inherits from his grandfather, Captain Roger Fortune!

The story is set in "No. 6," a future model city in 2013. Raised as a top-ranking elite since the age of 2, a boy named Shion lives in an exclusive area in No. 6. On the night of his 12th birthday, he rescues a boy who calls himself "Nezumi" ("Rat"). Nezumi ran away from the city's Special Security Area. From that moment on, Shion's life is changed forever...

Kabukicho, Shinjuku – the district that burns with desire is struck by an incurable disease.

In this district, a doctor, Inui Date, runs a small medical clinic Night after night, patients with extraordinary cases come to the clinic. Things change when one day detective Maria Daigo, a troublesome patient, appears.

Set in a Shinjuku that has been plagued by an incurable disease, the doctor and the detective become entangled in one mysterious case after another as they face the darkness in this psychological thriller.
Will the two be able to save this town?

He was born from an egg.
His Name Is Kevin.
Half fish, half man.
A Mermaid.
Using imaginary creatures like sirens as a model, he was created.

[From Manga-Sketchbook]: In the year 2045 A.D. the 37th Long Range Emigration Fleet - MACROSS 7 - proceeds on its mission to the center of the milky way. The headquarters of the Fleet are located on the 7th battleship 'MACROSS' class . Along the way the Fleet encounters of the Barauta. And then in the following year, 2046 A.D. In a sector of the combat zone the story begins.. Note: This series is very different from the rest of the Macross series. Its plot is not focused on space combat; in fact mechas don't appear in the story at all. Instead the story revolves around a sport called "air blading" (it's pretty similar to the Airgear manga), using the Macross universe as a context.

From MangaHelpers:

High-school girl Yui found a mysterious boy lying unconscious on the beach. This mysterious boy can't remember where he is from, only that his name is "Sid." After a confrontation with the locals, they discover that Sid is one of the human weaponry developed by the Japanese government, known as "Uncanny Brains" or UB. As the powers of the UB unfold before them, will Sid's arrival on this island spell doom for Yui and her friends?

Earth suffers a cataclysm. Three godlike beings emerge to rule over survivors. Overlord Ga-nok controls all waters. He nourishes nations with rain or blights them with drought.Yet, despite his terrifying abilities, the Water King can't win the heart of the woman Sui because the human heart contains more intense storms than even he can create. Furthermore, Sui seeks to fulfill a vendetta... and the power to slay the Water King.

English Publication

Jose lived a normal life until he met this girl, Maria, who was mysteriously targeted by unknown individuals. He got himself involved and was eventually killed by her pursuers. This event led to the awakening of Jose’s hidden abilities that brought him back to life; which unknown to him, is an unimaginable power that runs in his blood. He had been carrying in him the strength of one of the strongest Archangels who was foretold in the Prophecy of the Karmanics to be the savior of mankind. (Published by www.MangaMagazine.net) This is a Filipino manga.

From Kodansha Comics:
In the gritty, futuristic city of Neo-Saitama, the streets run slick with acid rain and blood. Here, an army of cybernetics-clad ninjas runs amok under the menacing rule of the Soukai Syndicate. As incessant strife wrought by a ninja turf war takes the lives of all citizens who end up in the crossfire, one can only hope to end the day without getting a suriken to the skull. But in these dark, tragic times, a spirit of vengeance rises to kill all wicked Ninja who terrorize Neo-Saitama. This crimson avenger is Ninja Slayer, and he will not rest until all Ninja have been slaughtered at his hands.

A young girl is mistaken for an alien princess and kidnapped... however there is more to her then meets the eye.

Gisele is a happy-go-lucky princess of an empire covered in snow, renowned for its production of androids. To make her smile more often and avoid all the boring princess responsibilities, Nero builds an android identical to her to act as her double. But when her power-hungry and warmongering father decides to marry her off to a prince of another warring country and use her android double as leverage, what will happen to these two and their country?!

(Source: Batoto)

A tale about people who have to shoulder the burden of mankind’s progress…

What can you do when you get mistaken for murder? Nothing. You go to prison. Lucky for you, your inmates are some of the biggest cutthroats in the prison. Seriously, you are lucky. Especially when zombies attack.

Neo Universe was an online game that was very popular in the story. Ganda participated the game, hoping to become a GM like his brother Vissana. Unfortunately, Ganda was tricked by an Anti-GM member named Waipoj, and Ganda accidentally became one of the Anti-GM members.

Rito is a high-school boy who just can't confess to the girl of his dreams, Haruna-chan. One day when coming home and sulking in the bath-tub, a mysterious and barely clothed girl appears out of nowhere. Her name is Lala and she comes from another planet...

In a world ruled by anthropomorphic animals. Humans live as slaves, and a group of terrorists dubbed the "World Destruction Committee" intends to destroy the world in rebellion.

A young man, Kyrie, who possesses the power to destroy the world, though he does not know why. Morte, a young woman with a tragic past and is the leader of a terrorist organization plotting to destroy the world. A demi-human named Naja, Morte's childhood friend Agan, a tough bear named Toppy, and a dragon girl named Lia. These beings will come together and journey to destroy the world!

Short yuri manga, set in a near-futuristic mecha pilot training school.

From L.O.V.E.:

Through the activity of “Elfenbein” – an anti-government organization that Fon, Jacques and their other classmates established – Fon, now a 3rd year student in Ilegenes Military Academy, became a threat for those important people in the government with connections to the black market. Meanwhile, two female military cadets entered the academy – something unusual in the all-male environment of the academy. One of them, Gabrielle, is surrounded by mysterious movements of unrest… The long-awaited new series of Ilegenes finally begins!!