Manga with Sci-Fi genre:

RahXephon

A mysterious orb envelops the city of Tokyo. All forms of communication are severed, leaving the inhabitants of the newly dubbed "Tokyo Jupiter" ignorant to their fate. Along with the United Nations, a special organization known as TERRA is formed: their mission is to liberate Tokyo from the otherworldly MU–those responsible for Tokyo's capture.

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Chapter 16

8 years ago
Sci-Fi Action Drama
Ultra Heaven

The story is set in a dystopian alternative present where any kind of substance able to alter the state of mind is legalized and authorized for consumption at home or in designated places called Pomp Bars. These products, once considered very dangerous, are now freely advertised on TV. The bartender chooses the ones more suited to his customers and serves them with special cocktails. When the Pompies movement obtained the liberalization of the drugs it seemed a historically meaningful change destined to improve the world - a dream realized in a manner that radically affected humanity's way of life. But in a world where all feelings are artificial and where everyone is a potential drug addict, nothing has really changed for the better. Only a select few drugs are considered dangerous and put under strict control by hygiene offices, which is given full authority to handle matters related to the severely addicted. The main character is Kabu, a small-time peddler and heavy addict. Used to any kind of hallucinogenic trip, he is able to feel the happiness through the ecstasy of the drug, while on the same time hypocritically hating who gave birth to that society which has forced him to the live this way. After an overdose caused by mixing two incompatible drugs, he spends his days looking for stimulants until the encounter with an enigmatic man who offers him a new kind of illegal substance…Ultraheaven From that moment on his incredible journey begins - where dream and reality are fused in an undivided world - causing him both hysterical joy and unbearable pain. But what is Ultraheaven and who is behind its creation? And who is the guru promoting the 'medication' as a powerful way to influence the whole universe surrounding us by exploiting the quantum theory? With the help of a special amplifier helmet, Kabu starts a trip deep into the his consciousness, diving into a nightmare he could never have imagined…

Sci-Fi Psychological Drama Mystery
Extra Existence

Thirteen years ago, an unknown object appeared at Shinjuku. That creature regularly gives birth to a demon. Therefore, our world is being eaten clean. The military found a weapon capable of fighting these creatures, a special power known as "exex" that becomes part of the human body.

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Chapter 6

8 years ago
Sci-Fi Action Psychological Romance
Crime Zone

The people of Earth live in a society where vampires aren’t just real but dangerous. Although humanity has been able to keep them under control and even take the night away as the vampire’s natural habitat, some of them have adapted. Hesperides, a relatively new breed of vampires, have adapted over hundreds of years in order to be able to go outside during dusk when the sunlight is at its weakest and feast on humans. Aburaya Shiro, a high school kid, lives in a town where there has not been a vampire attack in years, but adults keep warning them of going outside at dusk. Shiro and his classmates take this warning lightly and head out at dusk only to find out one of their classmates who they thought they knew well turns out to be a Hesperides. With all his classmates violently murdered, the only way Shiro was able to survive was with the help of a different classmate, Ichijoji Eruka, who doesn’t seem to be human herself. [Wikipedia](https://ja.wikipedia.org/wiki/CRIMEZONE_-%E3%82%AF%E3%83%AA%E3%83%A0%E3%83%BB%E3%82%BE%E3%83%B3-)

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Chapter 14

8 years ago
Sci-Fi Action Horror Tragedy
Full Metal Panic! Σ

Following the Tuatha de Danaan's seajacking incident, things are back to normal at Jindai High School in Tokyo, or as normal as they get with Sousuke guarding Kaname. After finding out who betrayed Mithril and caused the seajacking incident, Kurz and Mao are sent on a top secret mission in order to capture and bring the traitor back. However, Sousuke and Kaname's lives are about to change when they meet Leonard Testarossa, a high ranking member of a mysterious group named Amalgam. After their meeting, Leonard warns her that he would do anything to recruit her even if it means war in the streets of Tokyo. ___ **Character Designer:** [Shikidouji](https://mangadex.org/author/5841d294-69b1-4584-90a2-fd480b5f9b12)

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Chapter 90

8 years ago
Sci-Fi Action Romance Comedy Mecha Drama
DNA²

Japan in the future has a massive over-population problem. Scientists have traced the root of this problem to one particular individual, Junta Monamari. According to their records, Junta was a "Mega-Playboy" who sired children with over a hundred women. Each one of his sons inherited the Mega-Playboy gene too, so the problem grew exponentially from thereon. Meet Karin Aoi, a "DNA Operator." Karin is sent back to the past with a mission: to alter Junta's DNA and prevent him from ever becoming the Mega-Playboy, thereby eliminating the world's overpopulation problem. Junta's DNA can only be altered by shooting him with a special bullet called DCM which contains the chemical for suppressing the Mega-Playboy DNA. In return, Karin gets a vast sum of money… enough to make all her dreams come true. Will Junta become the playboy he is destined to be, or will his better self prevail? But Karin is falling for the real Junta too… and what of the sweet and kindly Ami who has secretly loved Junta all her life? What will happen to future Japan? (Source: Manganews)

3.7 (76)

Chapter 42

8 years ago
Time Travel Sexual Violence Sci-Fi Romance Comedy Drama
HE∀DS

The main protagonist, the shy Jun Naruse, is a rather average guy who works for a electronic company and loves to draw. He falls in love with Megumi whom he met at a shop selling drawing materials and an intimate relationship develops. One year later the office gets attacked and when the criminal tries to shoot a little girl he saves her by jumping in front of her. A month passes until he wakes up again and is told that half his brain got destroyed and he only survived because someone donated half a brain. Everything seems to be fine, he quickly recovers and is happy, however he begins to change… is the donated brain the reason for that? Or is it just a side effect of the medicine?

4.2 (271)

Chapter 36

8 years ago
Sci-Fi Action Psychological Romance Drama Slice of Life Mystery Tragedy
Genocidal Organ

The war on terror exploded, literally, the day Sarajevo was destroyed by a homemade nuclear device. The leading democracies transformed into total surveillance states, and the developing world has drowned under a wave of genocides. The mysterious American John Paul seems to be behind the collapse of the world system, and it's up to intelligence agent Clavis Shepherd to track John Paul across the wreckage of civilizations and to find the true heart of darkness—a genocidal organ. Adapted from the novel of the same name (published in english by [Haikasoru](http://www.haikasoru.com/genocidal-organ/)). The novel was also adapted into an [anime movie](https://myanimelist.net/anime/23279/Gyakusatsu_Kikan). --- **Officially published:** - In french by [Pika](http://www.pika.fr/catalogue/pika-seinen/genocidal-organ-30389) - In thai by [Phoenix](https://www.phoenixnext.com/mg0007-01.html) - In italian by [Star Comics](https://www.starcomics.com/ShopDetail.aspx?Titolo=1233) - In spanish by [ECC Comics](https://www.ecccomics.com/comics/genocidal-organ-3568.aspx)

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Chapter 11

8 years ago
Sci-Fi Action Psychological Drama Mystery
Hero Company

"A hero" is a job that in the face of danger and adversity or from a position of weakness, display courage and the will for self sacrifice. Would you like to work as such a hero in our company? You may transform, manipulate a huge robot or fight as a squad. Shall we realize your dream in our "Hero Company"?!

Chapter 11

8 years ago
Thriller Sci-Fi Action Psychological Romance Comedy Crime Superhero Adventure Drama Tragedy
Carpe diem

Juvenile criminals are sent to a prison called *Carpe diem*, which is located in a virtual reality. The prisoners are promised with release if they behave well, but behind the system lies a tragic secret…

3.8 (31)
Sci-Fi Psychological Drama Tragedy
Pokémon - Were The Mew Detective Team!

Sci-Fi Comedy Adventure Drama Fantasy Mystery
EX - Shounen Hyouryuu

Satoshi and a group of his friends are on a lengthy boat ride to Kijijima when the world comes to an end – literally. A huge Tsunami wave 500 meters tall overpowers the boat and he finds himself stranded on an island and alone. Meanwhile the rest of the boat has grounded after being dashed upon the shores and soon Satoshi finds them, and sets off a struggle to survive for the passengers and crew of the ship…

3.8 (59)

Chapter 26

8 years ago
Sci-Fi Action Psychological Adventure Drama Horror Mystery Tragedy
The Demons of Shanghai

In the year 2050 AD, Humans live in a world filled with science and electronics, but the "Demon Capital" Shanghai has never been rid of demons. Fortunately, the supernatural Demon Taoists Corporation is here to ensure that neither vampires, demigods, or even trans-cultural literary icons trouble the citizens…at least, for too long.

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Chapter 4

8 years ago
Thriller Sci-Fi Action Psychological Comedy Crime Adventure Drama Horror Mystery Tragedy
5001 Yakuza Wars

Anno Domini, The Final Days of The Year 5001. Join the Kanto Ijigen Family on their bodacious adventure going where no Yakuza has gone before… SPACE!

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Chapter 8

8 years ago
Survival Mafia Sexual Violence Delinquents Police Thriller Sci-Fi Action Crime Adventure Drama Fantasy Tragedy
Wombs

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. --- - **Won the Japan SF Taisho Award in 2016**

4.1 (150)

Chapter 42.5

8 years ago
Sci-Fi Action Drama
Mahou Ineko to Ibarahime

Story 1: Sagimiya Makage is new to an all girls school and doesn't feel like she will fit in. However, at the entrance ceremony someone even more weird than Makage introduces herself as an actual witch doctor who is employed to help with the school's curse. Shrugging it off, Makage later on makes a good friend at the dorms who won't wake up from the curse! How will Makage help her friend, and what is the secret behind this curse anyway?

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Chapter 1

8 years ago
Sci-Fi Comedy Girls Love Fantasy Mystery
Fullmetal Alchemist: The Prototype

Early version of Fullmetal Alchemist's chapter 1 drawn in 2001.

Thriller Sci-Fi Action Psychological Comedy Adventure Drama Horror Slice of Life Mystery Tragedy
Infinite Stratos

Students are trained in the Infinite Stratos academy to pilot the weapon system (Infinite Stratos). Although it is believed that only females have the ability to operate the IS, there is one man who can. His name is Ichika Orimura.

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Chapter 25

8 years ago
Sci-Fi Action Romance Comedy Mecha
Full Metal Lady

Spring, 1991. Mysterious gold metal balls fall from space… The balls were too small to be sensed by humans, so they were scattered across the entire earth without incident!

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Chapter 5

8 years ago
Monsters Aliens Supernatural Sci-Fi Action Horror Mystery Tragedy
I got stuck in real life, so its okay to get addicted to an MMO, right?

A long-running web-manga hosted by Neetsha, by Muu-Muu.

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Chapter 37

8 years ago
Sci-Fi Action Comedy Adventure Girls Love Drama Fantasy Slice of Life
Narue no Sekai

Narue is an adorable schoolgirl with a secret. She's really an alien with powers right out of a sci-fi comic! But growing up is never easy, and sometimes it doesn't help when you're from outer space. Join our spunky heroine as she faces androids, alien invasions, and her very first date while her life turns from a romantic comedy into a space opera!

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Chapter 98

8 years ago
Sci-Fi Action Romance Comedy Drama
GOD EATER -the 2nd break-

Three years after the events from the game God Eaters Burst, Alisa and Soma are sent on a mission to scout for spots to build a new residential area. Along the way they come across trouble of both the Aragami variety and the human variety.

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Chapter 18

8 years ago
Sci-Fi Action Romance Adventure Drama
Mother Sarah

Orbiting serenely above a long-ago poisoned earth, the last bastion of human civilization is the space colonies. After a terrorist attack, the colonists are forced into exile on the blighted planet below. In the confusion, a young mother is separated from her family and is flung into a bleak, uncertain future… But Sarah will not rest until she finds her children.

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Chapter 65

8 years ago
Survival Post-Apocalyptic Sexual Violence Military Gore Sci-Fi Action Adventure Drama Tragedy
Dogs / Bullets & Carnage

Sometime in the future, somewhere in Europe a city has many levels of underground, even secret dangerous levels that have answers to the past. Mihai is a retired assassin who has returned home to settle a vendetta and start a new life as a restaurant owner. Haine was genetically experimented on as a child, which led to him possessing dog like attributes. Badou is his clumsy chain smoking partner who becomes deranged when denied cigarettes. Naoto was orphaned as a child and has amnesia. She was trained to wield the sword. Their pasts are somehow connected to the secret underground and the organization that controls it.

4.2 (71)

Chapter 94

8 years ago
Sci-Fi Action Drama Mystery