On that day, humanity was turned into “prey”―.
Gen is a high school student living on the island of Tsushima, a door to mainland Japan.
Along with his sickly sister, Misaki, and his heartwarming mother, Gen was living a peaceful life, all until an “asymmetrical monster” appears on the island.

All hell breaks loose on the island of Tsushima.

These monsters devour everything from plants to animals, to humans, and mutate together.
Will humanity stand a chance against these mutant creatures?
Is there any hope?

Kenichi Tachibana from Terra Formars illustrates yet another crazy Sci-Fi survival series!!!

From MangaHelpers:
In a world where humanity has turned into prey against the so called "white skin" creatures, one legendary figure known simply as "Ryuma" continues to give hope to this post-apocalyptic society. This individual has many faces and descriptions, but his/her legend has lived continuously in the hearts and minds of the people for half a century. No one knows where this legend started or who started it. Here starts a chronicle to unveil the mysteries of a legend.

In the near future, the world is a desolate place occupied by the undead. Strange crystals emit a deadly zombie virus as the last remnants of humanity struggle to avoid infection and survive. Despite all this, life is relatively peaceful for young Ruby, who lives in the Amina Safe Zone with her father and a small band of other survivors. All of this changes when Ruby encounters Arvan, a white-haired young man with pale skin and no heartbeat. This meeting sets off a series of events that force Ruby and her father to embark on a journey to discover the truth.

The inside of the taboo door is shattered, or...

Five hundred years have passed since humanity went extinct at the hands of the fearsome “Beasts”. Even up in the sky, where the surviving races dwell on floating islands, these monstrosities constantly threaten to bring death and destruction. Only a small group of young girls, the Leprechauns, can wield the ancient weapons needed to defeat these creatures. Into the girls’ unstable and fleeting lives, where a call to certain death could come at any moment, enters an unlikely character: a young man who lost everything five hundred years ago, the last living human awakened from a long, icy slumber.

From ShoujoMagic:
On Kabuchi-jima, an island ruled by Princess Kaguya, ten children were raised as sacrificial victims. Several of the children thought they had escaped their fate when they escaped the island. But nearly a decade later, the kids are still dying in the order and at the time they would have as sacrifices... Their only hope now is to reunite and return to the island to seek out and destroy the source--the legend, the blood-lusting Moon Princess--before time runs out.

In 2002 Kaguya Hime received the 47th annual Shogakukan Manga Award for shoujo.

Several thousands of years from now, there exists the Joker Galaxy of five Star Systems, where a long, long war is being fought. The god of light, Amaterasu, is trying to unite the galaxy under his rule. The fighting stands between giant mecha called Mortar Headds, their pilots, the Headdliners, trained since birth for their task, and the female humanlike computers called Fatimas, necessary for controlling the MH. Many are the lives and destinies found throughout the more than thousand year long era of war, although Amaterasu seems to live through it all.

Note: To honor its 25th anniversary, the series was reprinted under Five Star Monogatari Reboot.

Toyspress, a company co-founded by the author, published the English translation. To date, 26 Volumes of the English version have been produced, covering Vol. 1-10. The future translation remains uncertain.

The struggle for survival between humanity and Parasites continues unceasingly around the world. Unfolding in the shadow of the legends of Shinichi and Migi, another battle for existence is revealed. Fukami, a veteran detective, investigates a brutal mass murder, and is unsettled by the composure of the informant: high school student Tatsuki. The source of that discomfort lies within Tatsuki's family...
The tale on the other side of the ageless masterpiece "Parasyte" begins here!

Ryotaro is a boy who loves robots and lives out in the country with his three sisters, but he's headed to Tokyo for high school. Before leaving, he runs across a humanoid military robot and has a fateful encounter with its pilot, a cute teenage girl who calls herself La Vie en Rose. Ryotaro will almost certainly meet her again in Tokyo, considering his family connection to the production of these humanoid robots--his father worked with them.

The story begins with Yggdrasil, a popular online game which is quietly shut down on its last day. Our protagonist Momonga decided to stay until the last moment in his beloved game and wait for the force logout. Unexpectedly, the server did not shut down and Momonga is stuck in his skeleton body and got transferred to another world. "The powerful Overlord" needs now to discover a new world and face the continuous challenges.

Having no parents, friends, or place in society, this ordinary man strives to take over the new world the game has become.

A massive asteroid is about to hit earth!

Humanity has failed to stop a giant asteroid from plummeting into Earth, and life as we know it has ended. An ordinary Korean office worker named Cheolsu is somehow given the chance to go back in time and prevent this catastrophe from ever happening. Does he have a chance?

The story and mythology of the Braves has already ended, and their star-spanning fable begins...

The year is Showa 74 (1999 A.D.) and the world has been through much turmoil. The streets are littered with destitute buildings, crime, and also Sex☆Machines... mechanical humans that can be used as motorcycles by thrusting a penis inside of them. These Sex☆Machines have been in use since the olden days, however, when criminals began riding them, the police had to adapt, and began to use them as well. One of these officers is Suzuka Yoshimura, a rookie cop who doesn't play by the rules aided by the help of her Sex☆Machine "Ace". She recently heard of an exhibition that will show off a so-called "Legendary Sex☆Machine". What type of Sex☆Machine is it, and what is its goal?

A hikikomori gets texted 'help me' from an anonymous source. Feelings of heroism coax him to the outside world which and he finds has been badly damaged, with broken houses and bits of debris everywhere. He searches for survivors but all he finds are corpses and ghosts till he gets to his sister's body.The guy has esp so he converses with her ghost and she tags along in his attempt to find more survivors. Eventually they do find someone that casts a shadow, but they may not be as human as they seem.

A man travels in time from the year 2027 to relive his school years and to correct a bad decision.

Humanity's dream... Crystal humanoid technology. They have 'illnesses' just like humans but the treatments options are quite different.

The troubled AI's band together, and the new doctor at the facility, Sudou, bears witness.

From MangaHelpers:
This is another story in the Full Metal Panic universe, set ten years after the events with Sousuke and Kaname. Ichinose Tatsuya is a pretty normal high school boy, who lives with his father and little sister Yukari. He has a tendency to fall in love with foreign women, which has never turned out well for him. One day, while up in the mountains driving a Power Slave to help out with his father's company, he runs into yet another beautiful foreign woman, called Adelina. He lends her a hand and is surprised to see that she has a military Arm Slave, called "Shadow," with her. What is this mysterious and highly armed woman doing up in the mountains? Tatsuya's life is about to get a lot more exciting.

In the American Area 51, there is a society where many varied supernatural creatures--kappa, vampires, aliens, gods and goddesses of various mythologies, mythological figures (like King Arthur), and more-- make their home. In addition to the non-humans, there's also a population of humans, people who can't live in the ordinary world for one reason or another. One of these people is Magoi Tokuko, commonly known as Makkoi, a tough woman who works cases with the help of her kappa associate, her deep knowledge of the area, and her pistol. In her office, which she's built in an unfinished subway station, she takes on all kinds of jobs (recovery of stolen goods, infiltration, etc.) from the many humans and non-humans who come to pay for her help.

Akina, Hime, Kotoha, and Ao are four members of the Hiizumi's Everyday-Life Consultation Office, which, in addition to helping kindergartners deal with tough times, strives to preserve the peace of their little town, Sakurashin, by hunting down the troublemakers who dare threaten it.

A 2 volume anthology series featuring A Certain Magical Index and A Certain Scientific Railgun characters.