Genres

Spirits known as kamui are thrown into chaos when the sacred spirit
Okikurumi is taken from Atsuma's village, and the imbalance threatens to destroy Earth. Infused with the spirit of an ancient sword, Atsuma must leave his village to reclaim Okikurumi.

He encounters NOA, an organization of youths who wield the power of the kamui, and who may hold the key to Okikurumi. Atsuma is recruited into NOA by Sumire, a young woman with an empty soul who yearns for a miracle. Atsuma and his new companions must work together to find Okikurumi before the world is destroyed.

(Source: Broccoli Books)

"If you become my wife, I'll grant any wish..." Maybe it wouldn't sound half as crazy if Saeju wasn't told this by a cat (who may or may not be some kind of prince). But she's desperate for some payback, particularly when her longtime crush blows her off, ice-cold style. But what happens when you invite someone downright... unearthly... into your life? Saeju's about to find out—particularly when one strange cat becomes one strange "brother" she didn't ask for!

(Source: Lovers Dream)

In the year 2999, only eleven cities still survive on Earth. The climate has changed drastically, and a biochemical apocalypse has made women extinct. For centuries, the male population of Earth has survived by depending on only one woman, called the Holy Mother, whose ova are harvested to create genetically engineered children. By now, any concept of a world in which women exist as ordinary people is long gone. Society has re-structured itself around all-male families, and gay relationships have become the norm.

At the beginning of Marginal, the Holy Mother is assassinated by a terrorist known as Grinja. The government in power doesn't want to start a mass panic, so it pretends that the Holy Mother has only shed her vessel, and that she will be miraculously "reborn" in the near future. The public, which is superstitious and devout, believes this easily. Only government officials know that behind the scenes, there is a frantic effort to create a new being with an XXY chromosome -- a male capable of giving birth. (This is a BL misrepresentation of an actual phenomenon known as Klinefelter's Syndrome.)

The manga's story revolves around one such boy -- Kira, the product of a genetic experiment, who becomes involved in a three-way relationship with Grinja, the aforementioned terrorist, and Ashijin, a young man who calls himself Kira's owner. A complex plot and flawless world-building make the story irresistible, and Kira's search for freedom is as symbolic as it is gripping.

(Source: The Pink Panzer)

Monsters and a post apocalyptic setting, a motorcycle riding MC and a weird young girl who likes donuts.

Spike, Jet, Faye and Ed—cowboys on the new frontier. Together this band of interplanetary bounty hunters takes on the jobs that anyone in their right mind would turn down.

(Source: Tokyopop)

Junior high school student Yamada hates bothersome things like studying, eating, and bathing. When he discovers he can jump through time, would he be able to find the way to a perfect life?

People have been created that are human-animal hybrids, and powerful businesses bet on the outcome of their duels. College student Nomoto Yuuya's casual acquaintances ask him to drive them around to pick up girls one day, which he soon finds out means by force. The girl they kidnap is an animal-human hybrid named Hitomi, who slaughters all of them except Yuuya. Hitomi is a honey badger, which has been called the most fearless of all animals. Now Hitomi is assigned to stay with Yuuya, for his protection!

(Source: MangaHelpers)

"To Hiiragi Kouichi-kun. I'll be waiting for you after school behind the school gym. Sakuragi Umeko." These were the words written in the first love letter Hiiragi ever received. But when he meets Sakuragi, she tells him that she wants to take him to the planet R'lyeh!?! Disappointed that the love letter from the cute girl came from a nutcase, Hiiragi returns home, only to find that Sakuragai won't give up so easily. Not only that, she may have been telling the truth afterall! But then again, Hiiragi isn't such a normal guy, either...

(Source: OneManga)

On the planet of Hekiou, there is a continuing war between the first wave of immigrants and the second. An important section of the military uses a native creature, the Niebass, to give its soldiers translocation abilities. These soldiers are all women, with the alien creature transplanted into their wombs. Some people see this practice as a violation of human women by aliens, and Mana Oga's boyfriend has a similar perspective on the matter. Mana Oga is a new soldier in this section, and the story follows her and the other women in her group who accept the alien creatures into their wombs in order to defend their homes.

(Source: MangaHelpers)

An astronomer discovers a black cloud approaching the earth threatening to wipe out all life, but no one will believe him, because all world governments are too busy waging war. Meanwhile, the boy detective Kenichi, the young Rock Holmes, Shunsaku Ban (Mustachio) and others discover the Fumoon, a race of tiny, telikinetic humanoids who evolved in Australia, and have their own plans for dealing with the impending apocalypse.

(Source: ANN)

A girl playing a male character in a video game falls in love with a female character in the virtual world while unaware the player is actually a boy. Meanwhile strange distortions begin to happen in the real world...

(Source: MU)

Kaburagi Aruto, an average high school student, wishes to become a Shoujo manga artist. One day, she is visited by something from the future. He tells her that she now has to become an amazing ero-manga artist.

More action and giant robots await in the Rahxephon novel. Relive events from the anime plus untold stories from a 1st person perspective, seen through the eyes of the various characters in the Raxephon mythos.

(Source: DrMaster Publications)

The story centers on Kakeru Doumeguri, a loner who is at the lowest caste of his school. A certain incident makes him reincarnate as the Dark Lord Helschaft, who exists inside the virtual reality game "Exodia Exodus," though he also has the ability to turn back into human form.

Ririko Asagiri, a girl who Kakeru has long had a crush on, is also trapped in the game, along with her classmates, who all swear a vow to defeat Helschaft and get back to their world. However, if Helschaft dies, everyone's lives will be in danger, so Kakeru/Helschaft meets them in battle. The other characters include Shuuko Aikawa, Kakeru's boss at his part-time job in the real world, and Helschaft's slave in the game; and Non Shizukuishi, a sharp-tongued cool girl who is interested in Helschaft.

(Source: ANN)

The virtual world of OZ has taken Japan by storm. Constructing an avatar in this real-world simulation grants users access to a wide range of features—from playing games to processing legal documents. Due to its overall convenience, OZ's popularity has skyrocketed since its inception and has been deemed the world's greatest communication tool.

Introverted OZ moderator Kenji Koiso had decided to devote his summer vacation to overseeing the system's maintenance. However, he changes his mind after being invited to accompany fellow student Natsuki Shinohara to her family's residence, where the Jinnouchi clan is gathering for the impending 90th birthday celebration of her great-grandmother.

Upon their arrival, Natsuki introduces Kenji as her fiancé, which comes as a shock to both himself and her great-grandmother. While struggling to keep up with the actions of his crush, he receives an anonymous text. Enticed by the complexity of its encryption, he decodes the message and sends a response—unknowingly bringing about a great catastrophe for OZ that will have dire consequences.

"My war isn't over!"

One mobile suit infantryman's personal battle resumes as a red fire blazes again in his eyes!

Betrayed by his own men, Captain Grahad Mills, a commander of the SAA Special Force "Jackal," is held responsible for a conspiracy about which he knew nothing. Without defense counsel at his court, he is sentenced to death. On the morning of his execution, he escapes the military detention center; in the process blasting a troop of national military guards and killing its commander—Captain Waldman, his former subordinate and betrayer. All this is for revenge and to find out the reason for the treachery. The former hero—feared and known as "Genocide—starts to fight a battle he created by himself.

(Source: Manga-Sketchbook)

Taken from Baka-updates:
Hayama Makoto is tormented by sightings of Shinigami(*), Asano Mitsuki dwells on his dead sister’s shadow, and Koumoto Yaeko longs for the love of her life―these are the heart-rending yet tender tales of the people whose thoughts dwell on life and death, and of the white Shinigami Momo.

(*)Shinigami, 死神 is the Japanese word for "Grim Reaper" and literally means "god of death".

July 15, 2043.

On that day, a Full-Dive VRMMO was released, with its unique system called "Embryo" allowing each player to follow an extremely varied—or rather, an "infinitely" varied pattern of evolution. That game's name?

"<Infinite Dendrogram>"

Possessing an element that, until now, had never been achieved by VRMMOs and was considered a technical impossibility, "<Infinite Dendrogram>" took over the entire world, becoming a major hit in the blink of an eye.

One and a half year had passed since the launch of "<Infinite Dendrogram>." A young man named Mukudori Reiji had finished his university entrance exams and began living alone in Tokyo. In order to celebrate the end of that lengthy studying period, after being invited by his older brother long ago, he finally started playing the game.

This is a story where the line between game and reality is blurred.

And also, a tale of reminiscences.

(Source: NovelUpdates)

What if real life could "glitch"?

Reika and Youko, two students, wander in a huge building, a real never-ending labyrinth defying imagination. Their only clue: a mysterious message on a table, signed by Tagami, a famous video game creator, who seems to know more about this place.

What is the real nature of this place? Why are Reika and Youko humanity's only hope?

(Source: MU)

The story is set in a place very similar in appearance to Earth in the Edo period. However, Adachi (the mangaka) regularly reminds the reader all throughout the series that the setting is another planet in the distant future which just happens to look like Earth.

After the death of his mother, Shichimi sets out to join his step-brothers and -sister who live together in Karakuri Tenement, a place provided by the father they have never met. He finds out that each of them had different mothers (all of whom have died), but were fathered by the same man. Not long after Shichimi's arrival, the siblings decide to journey to visit the graves of each of their mothers. On this journey, they encounter many dangers.

(Source: Wikipedia)