Manga with Sci-Fi genre:

Sabi no Yume Hidari

Toshio, who was created by modifying the body of a boy into a cyborg designed for sex - was taken in by Shindou, the person who takes care of him. Toshio spends his peaceful days doing chores, and waiting for the arrival of his beloved Shindou. However, while cleaning up Shindou’s belongings after they move out, Toshio happens to find a certain picture… Human x Cyborg BL - The awaited sequel volume

3.8 (37)

Chapter 3

1 year ago
Sci-Fi Psychological Romance Boys Love Drama Slice of Life
Ryogoku Leviathan -Grand Sumo Legends: Spirit, Body, Techinque

Leviathan, a man with an extremely unnatural body, declares that Sumo will now be ruled by muscle alone! But what is the truth behind Leviathan's body? A mysterious light sci-fi sumo manga that may just make you cry!

3.9 (18)
Sci-Fi Action Drama
Mysterious Joker Encore

The anime's 10th anniversary! They're coming back from a time gone by!! However, this time the plot is different from usual...

4.0 (6)

Chapter 3

1 year ago
Sci-Fi Action Comedy Adventure
Mobile Suit Crossbone Gundam First Cross

4.0 (13)
Sci-Fi Action Mecha Adventure
Charger Girl Ju-den Chan

Plug works in a company from a parallel world and her job is to secretly revitalize people from our world who are stressed out. Her clumsiness always gets her into trouble and she is constantly in danger of having her salary cut due to her performance. One day, she meets a young teenager that makes her realize that revitalizing people mindlessly is just a temporary remedy and does not solve the root cause of the problem. She then slowly begins to see the importance of timing the revitalization. However, her new aim is the exact opposite of the company policy and her boss sends Aresta to supervise her. Will she be able to keep from losing her job?

4.1 (74)

Chapter 34

1 year ago
Sci-Fi Romance Comedy
Muta Naru Mono no Inori

The life and death of a girl who knew everything.

4.1 (93)

Chapter 5

1 year ago
Sci-Fi Philosophical
Sabi no Yume Migi

Toshio, who was created by modifying the body of a boy into a cyborg designed for sex - was taken in by Shindou, the person who takes care of him. Toshio spends his peaceful days doing chores, and waiting for the arrival of his beloved Shindou. In the picture diary that Shindou bought for him, Toshio draws his everyday life filled with “fun” and “love”. All of these were given to him by Shindou… Human x Cyborg BL - A happy picture diary volume

3.7 (42)

Chapter 5

1 year ago
Sci-Fi Romance Boys Love Slice of Life
Galaxy Express 999

(from ebookjapan): **"If you can't stand your sadness, just look up to the sky and call me. I'll be watching you from this train, that is running through the Galaxy. Since I've started this never-ending journey, I've never forgotten you. I'm always beside you, so please don't cry."** A boy, Tetsuro Hoshino, and his mother dream of getting a machine body that can live for 1000 years. However, his mother is killed by Count Mecha's human hunters. Tetsuro escapes and collapses in a snowstorm, but is rescued by a mysterious beautiful woman named Maetel. She offers him a pass on the "Galaxy Express 999" train to Andromeda, to a planet where he can obtain a mechanical body for free, if he accompanies her... This masterpiece was adapted into an anime and became a huge hit. Through the boy Tetsuro and the mysterious woman Maetel, who travel from the Milky Way to Andromeda on the Galaxy Express 999 in order to obtain a mechanical body, this full-length drama explains what "life" means to human beings. **Note: Volume count based on the bunkoban. 1st part "Andromeda" concludes on vol 12 chapter 91. 2nd part "Eternal" concludes on chapter 138+**[138 is last collected in the Bunkoban version but there are 7 more chapters only collected in the Eternal collectors edition vol 4] --- - **Won the Shougakukan Manga Award in 1977 for Shonen**

4.1 (32)

Chapter 121.2

1 year ago
Award Winning Ghosts Survival Post-Apocalyptic Military Gore Delinquents Police Aliens Thriller Sci-Fi Action Psychological Romance Comedy Mecha Crime Adventure Philosophical Drama Slice of Life Tragedy
Shin Megami Tensei IV Dengeki Comic Anthology

Anthology of shorts based on Shin Megami Tensei IV.

4.3 (43)

Chapter 14.5

1 year ago
Thriller Sci-Fi Comedy Adventure Philosophical Horror Fantasy Tragedy
WORLD END WANKO

A man and a dog travel through a completely changed world. Will they be able to meet their estranged family?

4.0 (66)
Sci-Fi Tragedy
Invisible Blood

Akira has the ability to see ghosts. After her brother Kaoru died, Akira meets up with the high school super senior, Rei. Upon joining up with him to investigate ghosts all around the school, little does she know her powers, along with a mysterious chemical developed by her brother, might be what they need to finally understand and coincide with them. Golden Future Cup Nominee #4

3.9 (60)
Sci-Fi Action Horror
Shadow Lady

In Gray City, a glorious but crumbling metropolis, a different world exists between night and day. Here we find Aimi Komori, a shy girl with a secret--her magic eyeshadow transforms her into Shadow Lady, an infamous thief who sees Gray City as her own personal playground. Along with her pint-sized, bat-winged sidekick, De-Mo, Shadow Lady turns the menacing metropolis absolutely upside-down!

3.7 (34)

Chapter 24

1 year ago
Sci-Fi Comedy Drama Fantasy
Space Pharaoh ☆ Patra-chan

Let's invade Earth during summer vacation!? I, Princess Patra of Ptolemy, chose "Earth Invasion" for my summer vacation free study! However, because of my comfortable life on Earth, I tend to fall behind on my homework! Today is another peaceful day♪ (Thanks to Patra-chan's love for the Earth)

3.7 (45)

Chapter 34.1

1 year ago
Sci-Fi Comedy Slice of Life
OSAMU

When Tokyo is attacked by evil monsters, who better to save the day than the Super-Ultra-Mega-Level-Anti-Monster-Specialized-human-Final-Boss-Weapon OSAMU!!! Golden Future Cup Oneshot #3 2024

3.7 (54)
Sci-Fi Action Comedy
His Name is 101

(from ebookjapan): Babel II is back! Koichi Yamano, a 16-year-old ESPer boy, is now called 101 at a research institute, where he donates his special blood to give vitality to the sick. However, he escapes when he finds out that ESPers are actually being created and misused by a huge organization. The battle between 101 and the organization has begun as 101 tries to dispose of his ESP abilites in order to keep the peace!

3.4 (4)

Chapter 9.5

1 year ago
Survival Mafia Office Workers Military Gore Supernatural Thriller Sci-Fi Action Psychological Adventure Drama Fantasy Mystery Tragedy
Mobile Suit Gundam - New Revival of Zeon

This saga found its home in the pages of Gundam Ace starting in 2010. It stands as the long-awaited sequel to Revival of Zeon, a work that first graced bookshelves as a self-contained volume back in 1988.

3.6 (17)

Chapter 10.5

1 year ago
Sci-Fi Action Mecha Drama
Sidestory of Gundam Zeta

This work is depicted as an "if story" (alternative storyline) of the main Zeta Gundam series. Char Aznable, a captain in the Principality of Zeon, was forced to assist and join the Titans after the One Year War when his sister Artesia was taken hostage by them. His main mission was to hunt down the remnants of Zeon.

3.8 (19)

Chapter 5

1 year ago
Survival Military Thriller Sci-Fi Action Psychological Mecha Adventure Philosophical Drama Tragedy
Shikabanechou Undead

The urban exploration of two teenagers causes them to run into a mysterious "box", which encloses those infected with a virus called "corpse". In that city, there is a teacher named Katsuragi Zakuro. Which hides a secret ……

3.7 (274)

Chapter 21.1

1 year ago
Thriller Sci-Fi Drama Horror Mystery Tragedy
Digimon Liberator

Shoto Kazama, a boy who has never been able to win at card games because of his habit of giving up on things easily, enters the immersive world of Digimon Liberator through the invitation of his childhood friend, Arisa Kinosaki. The game allows players to engage in highly realistic card battles. At first, Shoto is hesitant towards it, but through his engrossing encounters with the Digimon there, he becomes a fan of the game. Encounters with wild Digimon such as Pteromon and battles with NPCs who have gone rogue. These various happenings set the wheels of fate in motion for Shoto and his companions. This is a story about Digimon, and the world.

4.0 (36)

Chapter 3

1 year ago
Sci-Fi Action Adventure
Battle in Outer Space

Shintaro Kago's debut work, originally published in 1988 in the magazine "Comic Box", was reprinted as a bonus pamphlet included with the 2015 collection "Uchuu (Sora) Kakeru Junjou". The story is about two biologists who land on a strange planet and study the confusing lifeforms they encounter...

2.6 (31)
Oneshot Zombies Post-Apocalyptic Sexual Violence Gore Aliens Sci-Fi Comedy Horror
Bizallien

Originally 16 chapters but the English release by Studio Ironcat reordered it over 8 issues.

2.4 (21)

Chapter 8

1 year ago
Loli Anthology Sexual Violence Aliens Supernatural Sci-Fi Girls Love Horror
Isekai Seifukuki ~Fuguu Shuzoku-tachi no Saikyou Kokka~

Peperon was playing the well-known one-player VRRPG "Magic & Sword" with the restriction that only the seven weakest races were under his control. One day, he woke up and found that he had been transferred into the game. He had lost almost all of the countries that he had worked so hard to build when he was transferred. All that was left was his own body, which boasted a high status, and the six subordinates he had devoted so much effort to nurturing. In order to rebuild the nation he once built, "Gloria Septem," Peperon once again begins his conquest of another world!

3.7 (114)

Chapter 1

1 year ago
Sci-Fi Historical Action Comedy Magical Girls Adventure Isekai Fantasy
Azumanga Recycle

Before the smash success of Azumanga Daioh, author Kiyohiko Azuma was a prolific gag manga artist. His early work led to him being hired by Pioneer LDC to create gag manga for some of their anime series, which was printed in some of the series' merchandise. After the success of Azumanga Daioh, his Pioneer-commissioned gag manga were collected into the book Azumanga Recycle. This book features gag manga adaptions of Tenchi Muyo!, Battle Athletes, and Magical Girl Pretty Sammy, all by Kiyohiko Azuma.

4.1 (9)

Chapter 5.5

1 year ago
Sci-Fi Comedy Magical Girls