Manga with Sci-Fi genre:

Shin Lupin III (Fan-Colored)

(Fan-colored variant.) Lupin the Third and his motley crew return in Shin Lupin III! This time, several of the stories are either brand new or adapted from or to the Lupin anime, and the beginning story was even animated by itself several years later! Lupin the Third is the grandson of the famous literary thief Arsène Lupin, and his partners in crime include the sharpshooter Jigen Daisuke, the stoic samurai Goemon Ishikawa the Thirteenth, and the on-again-off-again lover/enemy Fujiko Mine. Their goal is to outwit enemies bigger than themselves while nabbing the world's rarest and most important items, while also outwitting the dogged Inspector Zenigata, who's made it his life's work to capture and secure Lupin. In the manga however, his relationship with the titular thief isn't as "respecting to the enemy" as you would expect, as he's attempted multiple times to kill him without shedding a tear! What kind of sexy exploits will Lupin and his crew get up to next in…Shin Lupin III!

Chapter 2

2 years ago
Fan Colored Samurai Mafia Sexual Violence Police Thriller Sci-Fi Action Crime Adventure Drama Mystery
Meikyuu Biyori

A world where runaway construction machines repeatedly expand and remodel, and buildings go on forever. Even in a world where the sun is invisible, Hinata and her friends are living cute and pop everyday lives!  A story of the mega-structural wonderland of youthful, lazy days!

3.8 (12)

Chapter 2

2 years ago
Sci-Fi Slice of Life
Big X

Invited to Nazi Germany during World War II, Dr. Asagumo is asked by Hitler to collaborate with him on the research of the new weapon "Big X". Concerned about the possible effects of the completion of Big X, Dr. Asagumo intentionally delays the progress of the research, conspiring with his co-researcher, the devious Dr. Engel. Immediately before Germany is defeated by the Allies, Dr. Asagumo implants a card inscribed with the secret of Big X in his son, Shigeru, and is then shot to death by the German army. Twenty years later, the card is discovered in the body of Shigeru, who is then living in Tokyo. Soon, an organization claiming alliance with the Nazis appears, steals the card, and completes the Big X project. Dr. Engel's grandson has joined the Nazi Alliance. The completed Big X is then revealed to be a drug that can expand the human body without limitation. Recovering Big X from the enemy, Shigeru's son Akira fearlessly challenges the Nazi Alliance and Hans Engel, who are plotting to conquer the world. --- **Volumes 243-246 of the Osamu Tezuka Complete Works**

4.0 (2)

Chapter 18

2 years ago
Survival Military Police Thriller Sci-Fi Historical Action Psychological Romance Comedy Mecha Adventure Drama Tragedy
Plastic Memories Mini Comic Anthology

Two comic anthology volumes bundled with Vols 4 & 6 of the Blu-Ray Limited Edition release of the Plastic Memories anime.

4.6 (26)

Chapter 8

2 years ago
Sci-Fi Romance Comedy Drama Slice of Life
Perfect Planet

The future. One day, one of the expedition member on planet “RED” which environment resembles the earth, Kaneda, encountered a mysterious plant called “Argo”, native to “RED”, in the prohibited “Area 7” inside the spacecraft. “If you see Argo in estrus, run away”――that warning was futile. With his limbs entangled and his holes violated, Kaneda couldn’t help but drown in pleasure. One of his superior, Shiraishi, tried to save him. However, it turns out that Kaneda is caught in the midst of the research team’s terrible conspiracy――? **Warning**: Some chapters contain of Rape, Gangrape, Tentacle.

3.7 (23)

Chapter 8

2 years ago
Sci-Fi Romance Boys Love Drama
The Golden Trunk

One night, a man with a mysterious trunk of gold comes to stay at a hotel. By the next morning, he has vanished, leaving behind his trunk. The man went by the name of Shunsuke Ohtori - but the name actually belonged to a reporter who had never went to that hotel. Shunsuke finds himself, along with some others, wrapped up in the mystery of the trunk. There are also several parties after the trunk for their own ulterior motives. Just who was that man, and what is inside the trunk? An early gekiga work of Tezuka, serialized in a newspaper. --- **Volume 58 of the Osamu Tezuka Complete Works**

2.6 (6)

Chapter 7.1

2 years ago
Thriller Sci-Fi Psychological Crime Drama Mystery
AI-san ga dekiru koto

3.7 (57)
Sci-Fi Comedy Slice of Life
Tokyo Isekai Fudousan

Year 20xx. In various parts of the world, there are gates that connect to another world. There are tens of thousands of demi-humans and monsters living in Tokyo alone and various services have been established to accommodate the residents from the other world. One such place is the real estate agency called Ebisu-ya. (Source: Mangaupdates)

3.8 (374)

Chapter 9

2 years ago
Sci-Fi Romance Comedy Isekai Drama Fantasy Slice of Life
Song of the Dawn

1-2. Shungeki no Kokuu (Attack of a Moment) 3. Sora ni Hane ga... (In the Sky, a Feather...) 4-5. Gemel Uchuu Buki-ten (Gemel's Shop of Space Weapons) 6. Gastroking no Touchaku (The Advent of Gastroking)

4.0 (9)

Chapter 3

2 years ago
Sci-Fi Action Fantasy
Non Non Biyori - Jian Biyori (Doujinshi)

Comiket 89: Jian Biyori Comiket 93: Jian Biyori 2 | Namespace | Tags | | :--- | :--- | | character | Ichijou Hotaru | | female | defloration, lolicon, randoseru, rape, sole female | | male | sole male, bbm |

2.1 (50)

Chapter 2

2 years ago
Sci-Fi
THE IDOLM@STER CINDERELLA GIRLS x Godzilla - Godzilla Gamera Einherjar Daiguuzou Souinkou (Doujinshi)

Released on Comiket 90 (August 2016) | Namespace | Tags | | :--- | :--- | | character | Tachibana Arisu + Sagisawa Fumika | | male | sole male, bbm, glasses | | female | defloration, lolicon, rape, sole female |

2.4 (28)
Sci-Fi Fantasy
Megaman V

An adaptation of the game boy game with the same name

Video Games Adaptation Sci-Fi Action Mecha Adventure Drama
Kaguya Hime

On Kabuchi-jima, an island ruled by Princess Kaguya, ten children were raised as sacrificial victims. Several of the children thought they had escaped their fate when they escaped the island. But nearly a decade later, the kids are still dying in the order and at the time they would have as sacrifices… Their only hope now is to reunite and return to the island to seek out and destroy the source–the legend, the blood-lusting Moon Princess–before time runs out. In 2002 Kaguya Hime received the 47th annual Shogakukan Manga Award for shoujo.

2.8 (57)

Chapter 211

2 years ago
Award Winning Reverse Harem Crossdressing Sci-Fi Romance Drama Horror Mystery
Bukimi no Tani no Roboko-san

Kamikosugi Sousuke, a 28-year old hermit who can't connect with people, is suddenly asked by an android to teach her what it means to be human.

4.1 (12)

Chapter 1

2 years ago
Sci-Fi Romance Comedy
Nora

Nora (1977)

3.8 (36)

Chapter 12

2 years ago
Survival Post-Apocalyptic Military Sci-Fi Action Comedy Drama
Mobile Suit Gundam Unicorn: The Noble Shroud

This sidestory retells the events of the Laplace incident from the eyes of the Neo Zeon soldiers.

4.4 (9)

Chapter 1

2 years ago
Sci-Fi Action Mecha Drama
Itoshii Hana no Namae

"Please tell me the name of this feeling—" Sakura is an android working as a maid. Her master, Choutarou, always looks at her coldly, seeing her as just a machine. Even though he used to smile at her when he was a child... Is this yearning to see his smile again a malfunction in her system?

4.1 (38)
Sci-Fi Drama
Southern Cross Kid

Tatsuya is a boy that survived alone in the "land of the dead", a place where it's said no-one can survive for more than three days. He sets out on a journey of revenge in pursuit of Mike DeVilas, the man who killed his father and left him at the edge of the universe. His first target is Goliath, one of the planets ruled by DeVilas. However, the Reapers are waiting there for Tatsuya and intend to eliminate him...

2.7 (3)

Chapter 9

2 years ago
Survival Sexual Violence Gore Delinquents Aliens Sci-Fi Action Crime
8-Man vs Cyborg 009

8 Man vs. Cyborg 009 is based on Kazumasa Hirai and Jiro Kuwata's "8 Man", and Shotaro Ishinomori's "Cyborg 009". Skull is plotting the return of the Black Ghost Syndicate and is colluding with Dr. Night Daemon (8-Man's nemesis) in an attempt to rule the world. In the midst of their scheming, 8-man and 009, the world's fastest speedsters, will clash. Can they come together to thwart the New Black Ghost?

4.1 (7)

Chapter 10.1

2 years ago
Thriller Sci-Fi Action Crime Superhero Adventure Drama
Sword Art Online: Re:Aincrad

The manga will not only cover the original Aincrad arc, but also various Aincrad side stories, including those that were never animated, such as The First Day/The Day of Beginnings from volume 8 of the novels.

4.2 (47)

Chapter 10

2 years ago
Sci-Fi Action Romance Adventure Drama
BOFURI: I Dont Want to Get Hurt, so Ill Max Out My Defense.

I, Honjou Kaede, was invited by my friend, Shiromine Risa, to play a VRMMO. I don't hate games, but painful things are a little… no, I hate it very, very much. Eh!… the pain would be reduced if I placed stats on defense power? Then, the only place where I can place it, is there right? Right? Solidly fortify everything into defense, now here I come!

4.1 (2140)

Chapter 38

2 years ago
Sci-Fi Action Comedy Adventure Fantasy Slice of Life
Dragon Ball Super: Super Hero

The Red Ribbon Army was once destroyed by Son Goku. Individuals who carry on its spirit have created the ultimate androids -- Gamma 1 and Gamma 2. Who will save the world and defeat the Red Ribbon Army?!

4.6 (23)

Chapter 1

2 years ago
Sci-Fi Action Comedy Crime Superhero Adventure Fantasy Mystery