Manga with Sci-Fi genre:

Mahouka Koukou no Rettousei - Shiba Tatsuya Ansatsu Keikaku

The Spring of 2094 AD. A young girl whose calling is assassination, Hashibami Yuki, is witnessed by a young middle school boy at the scene of a crime. Supressing misgivings about erasing a young middle-schoolboy, Yuki’s superior abilities cannot compete at all. The name of the mysterious boy is Shiba Tatsuya. If the opponent was a normal boy, If the opponent was not a magician, If the opponent was not Shiba Tatsuya— An "irregular" boy and an "assassin" girl. The meeting of these two will alter fate and bring misfortune.

3.9 (67)

Chapter 4

5 years ago
Sci-Fi Action Comedy Drama
Umihara Kawase Gaiden

In 1995, along with the release of the original Umihara Kawase game, Shouma Yamabuki wrote and illustrated an 8-part manga series which was published in Comic Burger magazine (this is not that). They also created a 40-page comic story that was published in the Scola/Scholar Hyper Technique guide for the game (this is that). This “gaiden”, or sidestory, chapter uses the setting of his manga series, which is pretty distinct from the admittedly story-light game. In this setting, the heroine Umihara Kawase (whose name is spelled differently from the game version, to denote this is an alternate take on the character) has the mysterious power to breathe underwater and uses an electrified lure as a weapon, and must confront the legacy of her oceanographer father along with her friend Kouichi Shioji.

Sci-Fi Action Adventure Drama Slice of Life Mystery
Blanc Project

Yuu has been waiting for the release of the computer game White Earth, which was developed in total secrecy and had its release date postponed for unknown reasons. He finds out from some friends that he can download it from the game's official site, which results in a child coming out of his computer.

3.5 (20)

Chapter 15

5 years ago
Sci-Fi Comedy Adventure Slice of Life Mystery
Gale! Beast Machine Corps 203

Manga about the Russo-Japanese war. Set in 1904, it follows a special corps of soldiers trained to pilot a steam-powered robot called Brodrov.

4.1 (18)

Chapter 8

5 years ago
Thriller Sci-Fi Historical Action Mecha Adventure Drama
Zannen Jokanbu Black General-san

Braveman is your average superhero. Unfortunately for him, his arch-nemesis also happens to be a stalker and his number one fan. Follow their story as Braveman struggles to overcome his greatest adversary and retain his peace of mind.

4.6 (2128)

Chapter 70

5 years ago
Sci-Fi Action Romance Comedy Superhero Slice of Life
KIKI

A series of one-shots consisting of boys with horns, priests, etc. 3) Picnic part 2 Despite everything, Kaname seems to have found a bit of happiness with Kenichirou. But Kaname’s father doesn’t want to let Kaname go and is doing everything he can to keep them apart. 4) In God’s Hands Masato used to be a delinquent that was so naughty he was called the "Legendary evil." However, he has reformed because of his love for Jouji, a priest. But pretty rich boy Kikunosuke has his eyes set on Jouji as well and isn’t about to let Masato have him! 5) Dark Gray Heaven, Rainbow-colored Paradise Kotegawa Hajime has an automata made that is a perfect replica of himself, and plans to have this automata take his place as heir to his father’s company. Unfortunately, just after telling his father’s secretary about his plan, Hajime loses his memories in an accident. Now no one, including Hajime himself, is quite sure which is the real Hajime and which is the automata.

3.4 (9)

Chapter 5

5 years ago
Sci-Fi Boys Love Drama Fantasy
Sensei to Himitsu

1-2) Sensei to Himitsu Kaji's woken up from his nap hearing popular Tsunoda-sensei getting hot and heavy with another guy! But it's his partner, the plain Aritou-sensei that Kaji can't stop thinking about. Kaji's eyes are being opened as he finds that the needs and dark desires that can bind together lovers aren't always about love… 3-6) Hold me for all of Time A researcher, Sawatari Kaoru, runs off after finding out that there will be no more funding for his research. As he wanders around he sees an abandoned warehouse where he could use to continue his research with his remaining savings. As he walks inside the building, he meets an arrogant little boy. Surprise ensues as to the boys identity, and the unexpected result of his own research… Extra) And then… Continuation of ch.1-2, a little into their future.

2.9 (11)

Chapter 6

5 years ago
Sci-Fi Boys Love Drama
Outside of the Universe

As unpopular as DDD itself. A story featuring featuring “Ookumaneko Mokumoku” -until then just a side character- and a well-known little sister: “Ishizue Kanata”. Shunji Enomoto drew a short manga based on its events (pic related). Across the story we can see a Kanata with the urge to kill some time (and other things), making her way out of her chamber (more like a prison) with the help of the docile Origa Vice-president. Then, Kanata resolves going to a room nobody has stepped in for a long time. That room was located in her own ward; “Ward D” and its number was: “The Room No.404″, however, as this room was a mystery to even those patients (monsters) of Ward D and even though what lied inside resulted very attractive to pry into, no one tried doing it before, after all, the Hospital files didn’t even consider an active room anymore. Before she destroys the iron door intruding in her way, a dim, puzzling voice spoke a few words, resembling a warning to her: “Don’t come in. Don’t come in. You cannot withstand my power. If you come in you’ll regret it.” “Cherish life, don’t enter my world.” …this of course was the voice of Mokumoku, a 30 years old NEET who hid an unimaginable power.

Chapter 1

5 years ago
Sci-Fi Action Psychological Adventure Drama Slice of Life
Birdmen

Eishi Karasuma is a loner with a monotone life with his only friend is Mikisada Komoda. While skipping class they met Tsubame, a very energetic girl and Rei Sagisawa, a boy that attend the same middle school. On their way back, Eishi and Mikisada take a bus which plummets from cliff. In order so survive they have to make a contract with the mysterious Birdman… what does their future entail? **Officially published:** - In french by Vega - In indonesian by Elex Media Komputindo

4.3 (469)

Chapter 78

5 years ago
Sci-Fi Action Comedy Superhero Drama Mystery Tragedy
God Eater 2

Three years after the event in God Eater Burst, a new fatal pandemic called the Black Plague caused by red rain has struck the Far East area. Members of Special Forces Blood, an affiliate of Fenrir who reside in a mobile base, are sent to assist. ---

4.3 (20)

Chapter 8

5 years ago
Sci-Fi Action Drama Fantasy
Renai Plus α

When the last night of the field trip comes around, teachers will throw a party and become less mindful of the students. Whilst students use the great opportunity to run off somewhere, the night becomes a time when everyone can kick off their shoes. Student Search Group Teacher, Natsukawa Hikaru, is in charge of finding delinquents truanting and is most commonly known to be dumb. However, on the hunt of such students, Natsukawa-sensei seems to have caught himself in trouble. Overseeing the innocent Natsukawa-sensei in trouble, illegal leave-taking student, Koga Takaya, comes to the rescue. Having finding an interest in the dumb-witted Natsukawa-sensei, Koga asks for a kiss in return. Not knowing Koga is actually one of the delinquents he is suppose to be looking for, due to his vacuity, Natsukawa-sensei is disturbed to the departed fact that Koga knows exactly who he is. Having become close throughout the story, will Natsukawa realize the fact that he is in love with Koga Takaya, or will his incompetency lead him to loneliness? Contains four oneshots: Side Effect (oneshot) ||When Itsuki met Washinomiya-sempai, he was a post-graduate, and Itsuki was in the university he attended. Two years later, Washinomiya graduated and got a job, whilst Itsuki was still a student… so they lost contact. Washinomiya found a job at the corporate headquarters of Tanzawa Pharmaceuticals. Wanting to be by his side, Itsuki becomes a guinea pig for Washinomiya-sempai by taking pills. Asking himself a question, Itsuki accidentally slips and awakens to him being shackled to Washinomiya-sempai's bed! In a story of desperation for each other, what will be the outcome, and what exactly are these pills Washinomiya-sempai is giving to Itsuki? Read and unravel the mysteries…|| Sore Demo (oneshot) ||Satoshi Ichirou begins training to be a teacher in two days, so he had to borrow materials from his friend (Itsuki). However, accidentally eating one of the pills Washinomiya created, the pill completely changed Satoshi into a female, only to have a lasting effect of six hours. Looking and thinking like a female, Satoshi is seen to be leaning on a display glass of a female jacket. The store manager sees the suspicious Satoshi and invites him into the store. After trying on an outfit, Satoshi pulls out his wallet to see if he has any money, whilst at the same time a movie ticket floats out onto the ground. Satoshi crouches down to grab the ticket, but at the same time, a man with boxes blocking his view from below topples over Satoshi. Who is this charming man, and what will happen between the two? It is definitely a must read, that will encase your heart to what is known as love at first sight.|| Cigar Boy (oneshot) ||Sugita Nobuyoshi (25 years old) is everyone's acknowledged lolicon, and he admits it himself. Going out and about from the office to fetch a carton of maisen, he is mistaken for an old man and is given a weird brand of cigarettes called 'Cigar Boy' from a mysterious kid who is a boy but happens to look too much like a girl. Not daring to smoke them, Sugita throws the packet away, but curiosity killed the cat and got the better of him. After taking a couple of puffs, a cigarette genie appeared from the smoke and announces that he will grant three wishes! Will Sugita wish for fame, wealth, and power, or will it be something that money can't buy, fame cannot get, and power cannot control: love? The intensity of the story will have every reader on the edge of surprise!|| Dr. Vamp (oneshot) ||Tanzawa Chemical Production Second Department new employee Okamoto, seems to be a bit lethargic at the moment. He and fellow colleagues discuss what might be wrong. Being scared of what might be the problem that they discussed, Okamoto takes a trip to the Hospital and for a curious reason too. When he is called to the doctors room, he is asked to take a blood test. Unsure of what this means, Okamoto jumps to conclusions, thinking he is going to die. However, he is gravely mistaken and his curiosity will soon establish into an entire different feeling that will want to give more blood.||

Chapter 7

5 years ago
Sci-Fi Romance Comedy Boys Love Drama Fantasy
Brave Witches Prequel: The Vast Land of Orussia

The story of how the 502nd Joint Fighter Wing (The "Brave Witches") formed, prior to the events of the Brave Witches anime.

4.3 (28)

Chapter 12.5

5 years ago
Sci-Fi Historical Action Mecha Fantasy
Pokémon Card GB The Comix

Published as part of the Pokémon Card GB Final Tactical Book strategy guide, a Japanese guidebook for the Pokémon TCG.

Sci-Fi Action Comedy Sports Adventure Drama Slice of Life
Persona 4 Arena Ultimax

The story is a continuation of the events depicted in the game Persona 4 Arena and begins the day after it concludes. The Midnight Channel is back on the air and once again broadcasts a strange advertisement for another fighting tournament christened P-1 Climax, that shows members of the Investigation Team and the Shadow Operatives in combat. Just moments after this, Inaba is subject to a power outage and is engulfed by a bizarre red fog.

4.4 (90)

Chapter 35.5

5 years ago
Thriller Sci-Fi Action Psychological Comedy Adventure Philosophical Drama Fantasy Slice of Life Mystery Tragedy
Hyakumanjou Labyrinth

What if real life could "glitch"? Reika and Yoko, two students, wander in a huge building, a real never-ending labyrinth defying imagination. Their only clue: a mysterious message on a low table signed by Tagami, a famous video game creator. What is the real nature of this place ? Why are Reika and Yoko humanity's only hope? - Nominated for the 9th Manga Taisho Award in 2016. --- Official Release: - French release by Bamboo Eds as **Dédale** (2016) - Indonesian release by Elex Media Komputindo as **Million Rooms Labyrinth** (2017) - Spanish release by [Letra Blanka](https://www.amazon.co.uk/El-laberinto-del-mill%C3%B3n-tatamis/dp/8494605186) as **El laberinto del millón de tatamis** (2017)

4.2 (619)

Chapter 23

5 years ago
Sci-Fi Adventure Mystery
Convenience Store of the Dead ~The Convenience Store Clerk Will Get Rescued in 100 Days~

A zombie panic breaks out in Tokyo, and a high school girl named Hino-chan, who is a part-timer, has to wait out till X-Day. Stuck in a convenience store and waiting to be rescued…. When all of a sudden, zombies have flooded the world. Will Hino-chan be able to escape from the convenience store before the food and supplies run out!? - [Author's Twitter](https://twitter.com/nanasamib) - [Author's Pixiv](https://www.pixiv.net/en/users/20057656)

4.0 (1210)

Chapter 101

5 years ago
Sci-Fi Comedy Horror Tragedy
Risou no Musume Nara Sekai Saikyou Demo Kawaigatte Kuremasuka

The Unrivaled Father and the Strongest Daughter. The father's powers that is hidden under the guise of an average D-Rank is..? The story of their bonds and the storm that awaits them begins!

3.0 (1094)

Chapter 18.2

5 years ago
Sci-Fi Action Comedy Fantasy Tragedy
Ihou no Oswald

Year 198X, Puerto Rico. Mamiya Musashi, a boy who dreams of encountering intelligent extraterrestrial life, meets genius maverick Isaki Aira who he entreats to be hired as an assistant. From that encounter begins a story to surpass mankind's intelligence.

3.5 (37)

Chapter 4

5 years ago
Sci-Fi Drama Fantasy Slice of Life
Mahouka Koukou no Rettousei - Koto Nairan-hen

Zhou Gongjin, who was the mastermind of what happened in the Parasite Doll incident of Nine Schools Competition, has fled from Yokohama to the area of the original ancient magic users group centred around Kyoto also known as the *traditionalists*. Since then two months have passed and the National High School Magic Thesis Competition will soon be held again. This year's Thesis Competition is being held in Kyoto sponsored by the Magic Association and in their conference hall. Tatsuya gets visited by the Kuroba twins who as representatives bring Yotsuba Maya's letter to him. The letter is a request from his aunt saying "I hope for your cooperation to capture Zhou Gongjin". While it is questionable that whether it is a "command" rather than a "request", Tatsuya and Miyuki go to Kudou's house as they are in the centre as opponents of the traditionalists. As a result, the two siblings have a fated encounter with the "Genius Augmented Magician”. Conspiracy of the ancient city was the stage. The fate that has continued to smoulder away in the back of the history of magician development, Tatsuya and Miyuki and his companions are challenged. Adaptation of the original novel's volumes 14-15.

4.1 (119)

Chapter 4

5 years ago
Sci-Fi Action Romance Comedy Drama
Sumaho ♥ Kareshi

Yuuto gets chosen as a tester for the latest model of smartphone: a weary human looking smartphone by the name of Haruma.

3.2 (38)
Sci-Fi Romance Comedy Boys Love
Mega Man Star Force

Hoshikawa Subaru can transform into Rockman by merging with the FM Alien, Warrock! He'll fight other Wave beings to find the location of his father, who disappeared during a spaceship accident. In the journey to find him, Subaru will encounter many incredible foes. Will he be able to find his father?

4.4 (30)

Chapter 15.3

5 years ago
Thriller Sci-Fi Action Comedy Mecha Adventure Drama Tragedy
Tadaima Shinryakuchuu!

Yuki is an herbivore high school boy who ends up living with Muir, a rugged, sloppy, erotic, and cute math teacher, and female alien. In fact, Muir's aim was to acquire Yuki's excellent offspring with infinite possibilities and invade the earth!?!

Chapter 2

5 years ago
Sci-Fi Romance Comedy
Magika Swordsman and Summoner

15 years ago the world discovered magic as well as mythical beings (basically beings from various legends) in another dimension. Humankind learned to summon these dangerous mythical beings and use their power to great effect. 7 countries formed contracts with these "Diva" and gained their alligence as a result. Diva will chose their summoners on their 14th birthday and give them a stigma. Schools have been set up to train summoners and magical swordsman (basically bodyguards that give the summoners time to cast their spell) as a result. 15 years later after the finding of magic Hayashizaki Kazuki is chosen as a summoner and given a stigma to indicate that. This is surprising since males aren't chosen as summoners due to their low amount of mana compared to females. As the first male to be a summoner Kazuki is under a lot of scrutiny by almost everyone. To complicate matters his sister (who's a magical swordsman) is against him going into summoner school to train there as a summoner. Because summoners and magical swordsman have a cat mouse thing going on where summoners look down on magical swordsman as inferior so his sister naturally is against him going there. She'll stop him even if it means going to war. Kazuki however is determined to thrive in summoner school and have already determined to give it his all. Even if he's the lowest ranked student (ranked E) and his fellow students intend to demean him he'll prove himself as the strongest summoner.

3.7 (895)

Chapter 49

5 years ago
Sci-Fi Action Romance Comedy Drama Fantasy