Alien lifeforms have taken refuge on Earth to start their lives anew, however these beings don’t seek cohabitation, they want to phase humanity out; Working together, these Aliens prey on human flesh and spiritual energy and can implant their essence on human females to bear their children. Benimaru is one of these children, but his mother also happened to be a Medium. By manipulating Benimaru’s spirit while he was in the womb, she managed to give him a human heart. For this, she was brutally killed and devoured by Benimaru’s alien father. From that point on, Benimaru swore to exterminate these creatures. Half-human and half-alien, one man wages war against an entire race!

The genius hacker FeiKong is in reality a 17 year old girl named QingKong, she lives alone and is searching for her parents. She meets a young man on a train which goes to her aunt’s house every week, but they have never exchanged words. Until this time, they agreed to meet outside the train, it was this time’s arrangement who pulled open the real journey’s prologue… A mysterious organisation that doesn’t exist but controls everything…. His disappearance led them both in a parallel world.

Mahoro is a battle android created by Vesper to defend the Earth against alien invasions.
Having fought long and hard on behalf of Vesper, she only has 37 days left before she stops functioning. However, if they remove all her battle functions and equipment, Vesper can lengthen her life to 398 days. As thanks for her hard work, Vesper lets Mahoro choose how she would like to spend her remaining time.
She chooses to work as a maid for a boy named Suguru Misato.

From Broccoli:
In 7 days planet Graceland is about to be destroyed. The planet, locked in a vicious civil war, has been threatened with termination by the Milky Way Federation.

But hidden somewhere on the planet is an immense fortune placed there by the deceased Pirate King Bruce. Bruce bequeathed the fortune to his young daughter Franka, but she’s not the only one looking for the treasure.

Now a race is on. Bruce’s daughter Franka along with the space pirate Mister and his band of coyotes must battle against the 12 SISTERs led by Madame Marciano. With only 7 days left it’s going to be one explosive treasure hunt.

Taking place 30 years after the original Cutey Honey manga. Sister Jill has been revived, and has brought back the Panther Claw to defeat Honey.

From Easy Going Scans:

Asuma Eiji has the gift of psychometric power, meaning he can touch people or objects and see their history in images and words. Most of the time, Eiji is just a delinquent high school kid who hangs out with his friends and neglects his schoolwork. However, his psychic abilities have brought him to the attention of police inspector Shima Ryoko, who often calls him in to help out with difficult cases.

Currently, there's a serial killer loose in the city who has just claimed his sixth victim. He kills young women, contorts their bodies into odd shapes, and uses spray paint on them. With Eiji's psychic help, will Ryoko be able to catch the murderer?

This is a sequel of Psychometrer Eiji.

Series of stories about Parasyte, from various notable mangaka.

A pair of space explorers return to Earth centuries after their departure.

Modern day Japan gets invaded by giant bugs.

Imagine waking up one day to find that the sky around has been engulfed by an unidentifiable mechanical presence. Imagine that this new sky opens up and releases a Monomakia, a living weapon, whose sole purpose is to end your life. That's exactly what happens to 13-year-old Marin Asagi, an orphaned girl living in an alternate version of Tokyo in the 1970's. Young Marin's only chance to survive rests with Melan Blue, the Gun-Swordsman, who is destined to protect her. With arms made of weapons, the power of flight, and retractable body armor, Melan is a powerful bodyguard indeed.
Who is sending the Monamakia? Why do they want Marin dead? Who sent Melan to protect her? What is the secret of Brigadoon? With her new protector by her side Marin sets out across two worlds to discover the answers.

Kuromine is a guy who does not lie, hence his nick name "a bag full of holes". But everyone has secrets, and even Kuromine has one. Meet the very lovely, elegant, and mysterious Shiragami whom Kuromine has new found affections for... But what is this? Why does she have humongous wings when no one's looking and super long canines? Something is very different about this girl...

At the end of the world, a boy wakes up to find an odd shiny orb next to him.

In the future world, technology runs the universe. An intelligent robot committed many mistakes as he did not fully trust human beings. As his punishment, he lost his job and was sent back into the ancient times. However, the device had accidentally brought him back to Ancient China, where he met a cold yet beautiful snake demon. A series of stories unfold as the two were brought together by fate...

In the distant future, humanity is now only made up of women. Kohane Sumino has just enrolled into the prestigious Shirasakuya Academy that contains within it a secluded courtyard garden maintained by the Gardening Club. Legend has it that if two people pledge their love for each other underneath a pair of trees in that garden, they will be bound for eternity. Kohane seeks out the garden on her first day of school, where she meets Rekka Hanatsuka, the friendly self-proclaimed acting president of the Gardening Club. Although Kohane proves to be fairly popular early on, she soon learns that paradise is not without its thorns.

A collection of oneshots:

1. Four Billion Nights
2. Aru Adauchi no Hanashi
3. Kamaitachi no Hi

A compilation artbook/manga anthology, by Range Murata, with contributions by various artists.

In the year 2031 A.D., Earth has become ravaged by the attack of insect-like aliens called the “Blue”. In an effort to escape their destruction, humanity abandons the planet and now resides in an orbiting space station called “Second Earth”.

After being diagnosed with an unknown disease, Kaido Yuji was put to cryogenic sleep on Earth until a cure was found. But he’s given the rudest awakening of his life when Armour Shrike pilot Marlene Angel comes to pick him up, and Yuji witnesses in horror as her unit is wiped out by the Blue. Now Yuji must survive against the harsh new rules of this apocalyptic world -- and find out the true nature of his strange disease.

A collection of nine surreal short stories sharing a theme of water. 
Chapter 1, Bon: A young boy ponders family affairs around Bon.
Chapter 2, We’re Still on Our Way: An astronaut cadet must figure out his motivation if he is to succeed and go into space.
Chapter 3, Fusion: When the ultimate form of love is fusion, the government must work to stop a declining population.
Chapter 4, Such Sorrowful Stars: In a near-death experience, a man meets a solitary girl running endlessly.
Chapter 5, Salt Damage Season: A young woman is captivated by marine “vortexes”.
Chapter 6, Sea Weather: A girl follows a schoolmate home only to realize she lives under the sea.
Chapter 7, Squish: A girl can see things she calls “squishes”, transparent blobs all around us.
Chapter 8, Meltism: If we are the same as the planet, what separates us?
Chapter 9, Season・Time・Water: The world adapts to the changing of the seasons.

It began with first contact. In a dystopian world, a silent "watchman" follows and evaluates a gifted young woman.