Manga with Sci-Fi genre:

Haiyore! Nyaruko-san

The story centers around Nyaruko, a formless Cthulhu deity of Chaos (Nyarlathotep) who can take on the shape of a seemingly ordinary silver-haired girl. Mahiro Yasaka is a normal high school boy who is being chased by a fearsome black alien one night, until Nyaruko saves him. She explains that the creatures from H. P. Lovecraft’s works are actually races of aliens, and that she has been sent to Earth to protect him from being kidnapped by an alien trafficker. Eventually, Nyaruko and two other Lovecraft-creatures, Cthugha and Hastur, ends up being freeloaders at Mahiro’s place.

4.1 (56)

Chapter 2

5 years ago
Sci-Fi Action Romance Comedy
Doreiku - GANG AGE -

Greater Tokyo Ward: people are obsessed with a device named "SCM" that can mentally enslave others. In this world you can "borrow" and become a "slave" or "lend" and become a "master". This work is the latest in the mystery-group image drama "Slave Ward" series by Shinichi Okada, with a cumulative circulation of over 3.6 million.

2.2 (104)

Chapter 5

5 years ago
Thriller Sci-Fi Action Psychological Crime Drama Tragedy
Joouari

A story set in a far distant future where "insects" are used as biological forms of labor, transportation and other uses and also where humans live on the moon.

3.7 (16)

Chapter 3

5 years ago
Sci-Fi Action Mystery
Akatsuki no Fumi

Collection of short stories. **Contents:** - **Akatsuki no Fumi** (Daybreak Letters): The year is 2435, and Takatsuki Minori has developed a machine that can transport historical figures from their original time to the present. His son, Akira, one day discovers that the machine has gone haywire for no reason and ends up accidentally summoning the 16th century samurai, Mori Ranmaru… - **Shinjitsu no Catharsis** (The Catharsis of Truth) - **Moero! Otousan** - **Rasen no Kioku** (Spiral Memories): Ever since tragedy struck his life, Chihiro Hirosaki has fallen into depression and longs for a way to end it all. When a young demon crashes into his life, seeking to take advantage of his arrival in the human world to form a life stealing contract, could it be that they've both found what they were looking for? - **Asa to Yoru no Tenohira ni** - **Kimi ni Okuru** - **Hi no Matoi (pilot)**

3.7 (27)

Chapter 4

5 years ago
Sci-Fi Drama Tragedy
Mischief Makers Outline & Opening Comic

The comic that appears at the beginning of the Japanese *Mischief Makers* / *Go Go Trouble Makers!!* manual. Reads left to right.

Sci-Fi Action Comedy
Saber Cats

Martial Arts In Space And Stuff

Chapter 0

5 years ago
Martial Arts Sci-Fi Action Comedy Adventure
Ashita no Tamago

Katsuya is a high school student with a secret crush. A stranger unexpectedly shows up, calls him "Grandfather" and begs for his help in saving his father - Katsuya's son. Together with Katsuya's childhood friend, and with Katsuya's secret crush, the four set out to save Katsuya's son.

2.3 (2)

Chapter 1

5 years ago
Sci-Fi Romance Comedy Adventure
Blind Game - New Age Hakkenden

Japan's gone all Gattaca (good movie) and, in 2031, a genetically engineered kid starts having weird dreams. A retelling of Kyokutei Bakin's epic 19th century novel Nansou Satomi Hakkenden, or Chronicles of Eight Dogs. Unlike her earlier straightforward adaptation, this one is set in the near future.

5.0 (1)

Chapter 2

5 years ago
Sci-Fi Romance Drama Mystery
Lup★Salad

Several vignettes featuring a young girl and her uncle on a series of fantastical adventures.

3.7 (9)

Chapter 14

5 years ago
Sci-Fi Comedy Adventure Fantasy Slice of Life
Laika no Hoshi

Tale of the Soviet space dog Laika, who after being launched into Space, takes her revenge on humankind.

4.3 (444)

Chapter 5

5 years ago
Sci-Fi Comedy Girls Love Tragedy
Eirun Last Code

This is the story of how one primitive lame old mecha anime became a legend that led the way for humanity. After a malfunction, Eirun Bazatt arrives during a battle between what appear to be Japanese forces fighting against monsters called 'Malice' and he's not one to run away from a fight… ___ **Mecha Designers:** [Sekiyama Konomu](https://mangadex.org/author/23880f6b-b327-478f-806b-f0f37af9ec1b), [Sadamatsu Ryuuichi](https://mangadex.org/author/99602dd5-08d3-4665-9739-bd16eaf196d4) [Official Twitter Account](https://x.com/eirunlastcode)

3.3 (148)

Chapter 5

5 years ago
Sci-Fi Action Romance Mecha Adventure Drama Mystery
Hai Gamer na Imouto to Hajimeru VRMMO Seikatsu

Chitose is a high school baseball player who had to abandon baseball due to injury. One day, when Chitose was spending a boring day off without any goal, Chitose's life changed completely with a "VRMMO game" that was suddenly sent by his sister Haruka! “Oy Onii-chan, let's play a game together in our spare time!” A high school baseball player became a gamer at the invitation of his cute sister! ? Using his "excellent baseball sense" to enjoy a fun game in a VR world!

3.2 (194)

Chapter 5

5 years ago
Sci-Fi Action Comedy Fantasy
A Country Without Humans

An action-adventure where a young girl finds herself as the only human in a mysterious city populated entirely by automatons. Some of these robots are dangerous, bent on hunting her down, while others, who might be more benevolent, are not without their own goals. [Alternative English](https://mangaplaza.com/title/0303001545/)

4.5 (74)

Chapter 1.5

5 years ago
Sci-Fi Mecha Drama Fantasy Tragedy
Legends in the Dark

With the airplane, humanity's longing to take to the skies was realized. The development of science and technology has even made it possible for them to advance into space. And thus have the skies, once an object of longing, been transformed into a place of fierce international conflict. Compiles the title story and other short classics by Satomi Mikuriya.

3.3 (24)

Chapter 6

5 years ago
Anthology Sci-Fi Action Psychological Drama
Ayashi Kotogatari

High school student Takahara Yachiho has just moved into a notoriously haunted house on the outskirts of town. With only her cat Fuku-chan for company, Yachiho is disturbed by strange sounds and happenings…until the day she comes across a small passage leading to a hidden lower floor. There she discovers spirits of all shapes and sizes, guided by the tiny supernatural “manager” Moro. If Yachiho is to call this place home, she’ll have to deal with its ghostly denizens–and find a mysterious book that may be the key to locating her missing mother.

3.9 (37)

Chapter 5.2

5 years ago
Sci-Fi Mystery
Earth Recording 0001

Astronaut Mawatari encounters a humanoid creature during a moon surface investigation. Because they are both lonely, they promise to teach each other about the universe and the earth…!? ___ **Alt Official Raw:** [X](https://x.com/noririn4696/status/1392397418902159361)

4.5 (1571)
Sci-Fi Drama Tragedy
The Two Faces of Tomorrow

Midway through the Twenty-first century, an integrated global computer network manages much of the world’s affairs. A proposed major software upgrade—an artificial intelligence—will give the system an unprecedented degree of independent decision-making power, but serious questions are raised in regard to how much control can safely be given to a non-human intelligence. In order to more fully assess the system, a new space-station habitat—a world in miniature—is developed for deployment of the fully operational system, named Spartacus. This mini-world can then be “attacked” in a series of escalating tests to assess the system’s responses and capabilities. If Spartacus gets out of hand, the system can be shut down and the station destroyed . . . unless Spartacus decides to take matters into its own hands and take the fight to Earth. (From: Dark Horse) Adapted from James P. Hogan’s classic science-fiction novel by the award-winning Yukinobu Hoshino, The Two Faces of Tomorrow is hardcore science-fiction manga at its best. (From: MU) Licensed in English by Dark Horse as *The Two Faces of Tomorrow*.

4.2 (42)

Chapter 24

5 years ago
Survival Military Adaptation Thriller Sci-Fi
Mazarian

A manga about modern Japan where anomalies known as ‘hizumi’ or 'twists' appear and mix together objects. After a high school delinquent, middle school nerd, cat, and flea end up fusing together, they embark on a quest to learn more about the anomaly.

4.3 (58)

Chapter 8

5 years ago
Sci-Fi Adventure Drama Horror
Trinity Blood

The background is in the distant future, a post-apocalyptic world after the destruction brought about by Armageddon. The war between humans (Terran) and vampires (Methuselah) continues, as a struggle between two factions: the Vatican and the New Human Empire. Yet, amidst the bloodshed and violence, many desire a peaceful co-existence between the two species. However, standing between them and this goal is the Rosenkreuz Orden, a group of vampire extremists who manipulate the two sides and pit them against each other. To combat them, the Vatican special operations group "AX," led by Cardinal Caterina Sforza, must use everything they have - even a vampire who preys on the blood of other vampires. Adapted from the light novel series of the same name. [See AnimeNewsNetwork for the anime.](https://www.animenewsnetwork.com/encyclopedia/anime.php?id=4874)

4.5 (153)

Chapter 73

5 years ago
Sci-Fi Action Drama Horror Fantasy
Mahou Shoujo Lyrical Nanoha As

Girls' battle and friendship over the ancient heritage "Book of Darkness"—the official comic book of the popular anime *Magical Girl Lyrical Nanoha A'S* is now available. It includes eight side stories that complement the main anime storyline, serialized in Megami Magazine and Comic Chirality.

3.8 (21)

Chapter 7

5 years ago
Sci-Fi Action Comedy Magical Girls Drama Fantasy
Obey Me! Misadventures

Promotional manga for NTT Solmare's otome mobile game: Obey Me! --- - [Official English Translation on Twitter](https://twitter.com/i/events/1361133347599081475)

4.7 (58)

Chapter 7

5 years ago
Sci-Fi Romance Comedy Fantasy
Ore dake ga Shitte iru Love Come

A boy who keeps visiting his girlfriend in the hospital.

4.3 (1369)
Sci-Fi Romance Comedy Drama
Time Paradox Ghostwriter

On a cold and stormy night, I decide to give up on my dream. But lightning strikes! And now I have an issue of Shonen Jump from the future! Teppei Sasaki is a passionate rookie manga artist who dreams of getting a series in Weekly Shonen Jump. One day, he gets a copy of Jump from ten years in the future. Is it all a coincidence, or is it fate? Whatever the case, destiny is about to change… Time warps! Destinies intersected! For a tomorrow that was never meant to be! The future of Jump is here!

3.5 (383)

Chapter 14.5

2 years ago
Sci-Fi Drama Mystery
Godzilla vs. Destroyah Red

After the death of SpaceGodzilla, in 1996, Birth Island is found destroyed with Godzilla nowhere in sight. His adopted son, LittleGodzilla, is presumed dead. Meanwhile, all is well in Hong Kong, but Godzilla, covered in glowing lava-like rashes proceeds to attack Kai Tak Airport and menace the aircraft there, before wiping out the seafront area of Hong Kong with repeated blasts of his Atomic Spiral Ray. G-Force representatives hire college student Kenkichi Yamane, adopted grandson of Dr. Yamane who witnessed the original Godzilla in 1954, to come work at the center in an attempt to unravel the mystery of Godzilla's condition.

Chapter 0

5 years ago
Thriller Sci-Fi Action Adventure Drama Horror Tragedy