1. Read Manga Online
  2. Sci fi
  3. completed
  4. Page: 3
4.25

Mazinger Z

Chapter 23
  • 85.80k
  • Nagai Go

One of the first Super Robot manga and the one that introduced most of the traits of the Mecha genre. Constructed with the Super-Alloy Z, Mazinger was built by Professor Juzo Kabuto as a weapon against the Mechanical Beasts of the evil Dr. Hell. Koji Kabuto, the grandson of Professor Kabuto, becomes the pilot of Mazinger Z when his grandfather is killed, and battles from there on against Dr. Hell and his allies. This is the first series that introduced the concept of a pilot inside a Mecha, which all series from then on have followed. Great Mazinger (Sequel) Mazinger Angel (Alternate Story) Shin Mazinger Zero (Alternate Story) UFO Robo Grendizer (Sequel) Z Mazinger (Alternate Story)

3.71

Japanese History Detective Conan

Chapter 6: The Location Of The "Time Stone"
  • 301.40k
  • Aoyama Gosho, Various

Conan and the Detective Boys are asked to help kids who have been send backwards in time. These "Time Drifters" explore different eras of Japanese history in search of the Time Stones that will help them return to the present day.

4.72

A Hero Who Does Everything Perfectly

Chapter 29
  • 0.61m
  • White Eagle, Hwang Gyu Young

In 2024, Na Gang-in wakes up in the heart of South Korea. He can't remember who he is or where he is, but through a combat support AI named Jeon Ji-in embedded in his body, he discovers he's affiliated with the Earth Alliance from 2082. To regain his memories and figure out why he ended up here, he needs to gather information… With nothing to his name but plenty of skills, this is Na Gang-in's clumsy journey of adapting to Earth!

4.56

Uglyhood

Chapter 71
  • 3m
  • Mie

The world is being assimilated by a crazy religion, and to stop it I have become their satan. The religion is controlled by aliens, and people don’t have a clue. The world says that aliens don’t exist, but they are everywhere. How am so I certain? Because I am also an alien.

4.19

Seishokuki

Chapter 161: Miho Kitazawa's Training ②
  • 2.70m
  • Inamitsu Shinji

From MangaHelpers: Nogawa Izumi is a good student, and a class representative, but she has an increasingly high libido. It's gotten to the point that she'll claim to feel bad during class, so she can run to the nurse's office and masturbate. When she learns that the Earth is being invaded by aliens that look like people dressed up as animals, it turns out her high sex drive may be able to help protect the Earth. The first time Izumi is attacked by the aliens, she is rescued by Usayama, a bunny alien whose race was their previous victim. Usayama gives her an outfit (a sexy swimsuit) that will allow her to fight the aliens, but which also sends her constant arousal through the roof. The scientific organization that Usayama is affiliated with think that Izumi, with her high erotic level, may be the person they've been looking for to fight the aliens. Will Izumi be able to save the Earth? [tethysdust]

4.61

Terra Formars

Vol.24 Chapter 247: Security On Call Private Company Ichi Security
  • 17.10m

With warming-up earth in order that people could survive on its surface together with the space program trying to go to Mars, 21st century scientists were tasked. They developed an efficient and cost effective strategy of sending mould and roaches to the surface so that the sun would be absorbed by the mould and the insect corpses would function as a food source for the mould. The first manned boat to Mars has landed on earth and it's now the year 2577 as well as the six crew members are prepared for their assignment. However, what they find are giant mutated cockroaches with incredible physical power. The crew members can be wiped out, but not. Now, mankind will send warriors claim Mars back and to exterminate the bugs that are mutated. Terraformars are developed cockroaches who survive Mars. They possess a regular person and endurance as well as enormous strength is not any match for them. Possess an all-natural hate for people and in addition they seem to be fairly smart. The Terraformars are human-sized martian cockroaches with humanoid bodies. They bear a bodily similarity to Homo Erectus. They're crouched on survival, adaptable, and animalistic. They appear to bear a kind of instinctive hate for humankind and are descendants of roaches. In addition they seem to be fairly clever. You can find lots of varieties, their behaviour changing that is precise, however they generally keep an expression. They they do not seem to have much of a culture, but the Evolved Terraformars do show a level of direction, summoning their brothers into a fighting force that is competent. When attacking people, their goals are prioritized by them. The first choice is anybody who is keeping some thing (arms). The 2nd is come from those who find themselves alone. The third is anybody who is hurt and the fourth is objectives that are feminine. They nevertheless posses antenna and cerci in the cockroaches that are first. Under their carapace on their again, they've wings, which gives them the power to fly. Oxygen is used by the Terraformars from ports around their body. Amylose polysaccharides can combust to get a huge outburst of electricity. Through their lungs, the oxygen they need for basic life functions is consumed like people. Their CNS is not changed, as well as the Subesophageal Ganglion found in the torso, instead of the head controls the physique. For this reason, a Terraformar can still go even after being decapitated, there's an open passage to the lungs and provided that the Subesophagael Ganglion is complete. No sex organs of any type happen to be seen on any Terraformar. So that you can begin a Mars Terraforming Project little over 500 500 years past, roaches jointly with some moss were sent on Mars. 500 years after, when Mars was revisited by the people, they noticed how significantly the roaches have evolved and finally possess a human look that was like. Due to numbers and their immense strength, they immediately removed all of the Bugs crew that was # 1. Due to an endless downpour of area radiation and -80C temperatures, the roaches, who never have altered their contour to evolve have been ultimately pushed by this brutal surroundings. Having kept the powers of the roaches, they've agility, power, stamina as well as a carapace that is tough. So making them very hard to kill. They've adjusted to fire and heat, as well as possess wisdom,learning the best way to make use of sophisticated weapons made by Bugs # 1 crew. Other manga: + +

4.88

Kidou Sensei Gundam Gaiden - The Blue Destiny (Taichi You)

Vol.5 Chapter 25: Clare Kilmer
  • 194.30k
  • Chiba Tomohiro, Taichi You

Robotic armed freedom fighters fight for Earth's future in this intergalactic tale of the pursuit of freedom. After Earth's overpopulation sends humans offworld to live in space stations, they are abused by the controlling power—the Earth Federation government. Colonists form the Zeon Dukedom to resolve their disputes and wage the One Year War for independence. For over 20 years, the world of Gundam has reigned over all other mecha anime and manga series. Mobile Suit Gundam: Blue Destiny continues the Gundam legacy with the adventures of Federal Forces second lieutenant Yu Kajima and his special unit of mobile suits.

4.33

Boku Wa Beatles

Vol.6 Chapter 47: Debut Concert
  • 0.68m
  • Kawaguchi Kaiji, Fujii Tetsuo

This is the tale of two members of a Beatles cover band who find themselves transported back in time to 1961 – to a time before anyone had ever heard of the Beatles – and decide to take the mantle of the world’s greatest rock band for themselves!

4.26

Sentai Taboonew

Vol.1 Chapter 5: New Weapon
  • 41.20k
  • Tk2

[In the face of justice, there are no taboos that should not be violated.] In the near future, humanity is in the depths of fear due to the onslaught of monsters. To protect world peace, the united Cross Rangers will enforce justice today! ...Or so it was supposed to be. Cross Red, also known as Akama Retsuo, is a man who is passionate about justice. With an overflowing sense of justice, he commits a taboo one night with Cross Pink. And so begins the days of muddy, terrifying, immoral and ruinous...! A suspenseful story of justice and immorality!

4.84

Yajin Tensei: Karate Survivor In Another World

Vol.9 Chapter 56: The Danger Zone
  • 25.90m
  • Kobayashi Takahito, Yazin

If you're reincarnated in another world, you will be naked and alone in the forest. The only things you can rely on without magic or cheats is your wits and fists!

4.75

World Trigger

Chapter 248
  • 31.70m
  • Ashihara Daisuke

In Mikado City (280 000 inhabitants), a "gate" to another world is opened unexpectedly one day. Creatures called "Neighbors" begin appearing from it, many people are scared of them because Earth's arms do not work against them, but a cryptic group begins fighting off the Neighbors. They, the "Border" protection bureau, develop a defense system from the Neighbors. Now, since that time, whatever the Neighbors still appearing in the gates, individuals of Mikado City were dwelling generally. Yumother Kuga, a humanoid Neighbor, comes to Mikado City, where he fulfills a Border representative, Osamu Mikumo four plus a half years following the gate is opened for the very first time.   Osamu Mikumo is a character in among the key protagonists plus the anime and manga show World Trigger. He could be a B Class Shooter and captain of Mikumo Unit.   Yumother Kuga is a character in among the key protagonists plus the anime and manga show World Trigger. He could be a Bclass Attacker and member of Mikumo Unit. He's a Neighbor.   Yuichi Jin is an A Class (previously S Class) member of Border, and part of Tamakoma Branch. He's among the primary protagonists of World Trigger Manga.   Chika Amatori is a character in among the key protagonists plus the anime and manga show World Trigger. She's a B Class Sniper and member of Mikumo Unit.   Replica is Yuma the guard of Kuga. This is a self described "multi-task Trion Warrior".   Daisuke Ashihara wrote and illustrated the manga. Individual chapters have been serialized in Weekly Shunen Jump since February 2013, and therefore are rolled up into tankubon volumes published by Shueisha. As of September 2015, a dozen volumes are released in Japan. The set has been permitted by Viz Media +

4.61

Metalial Story

Chapter 12
  • 363.40k
  • 相賀マコト

Metalia, a world where mechanical creatures called the gears stroll. It was the so-called "machine hunters (collectors)" who hunted those who ruled the earth with mighty power. A boy now descends in Melzam, the largest city in Metaria. His name is Nill. He, with the right arm of the machine, had a secret. This is a story that looks for your fate.

4.68

Time Stop Brave

Chapter 51: Whiteknight And Stop
  • 12.50m
  • Mitsunaga Yasunori

KUZUNO Sekai was transported to a medieval fantasy game-like world (isekai). He was given a game controller with the ability to stop time and a 3 days countdown timer. Now he has to figure out the mechanics of this game world and clear it in time.

4.44

Harmony

Chapter 8.5
  • 110.80k
  • Itou Keikaku

In the future, Utopia has finally been achieved thanks to medical nanotechnology and a powerful ethic of social welfare and mutual consideration. This perfect world isn't that perfect though, and three young girls stand up to totalitarian kindness and super-medicine by attempting suicide via starvation. It doesn't work, but one of the girls—Tuan Kirie—grows up to be a member of the World Health Organization. As a crisis threatens the harmony of the new world, Tuan rediscovers another member of her suicide pact, and together they must help save the planet...from itself.

4.2

Ginga Eiyuu Densetsu (Fujisaki Ryu)

Chapter 66: Rear Admiral Yang Wen-Li: Iserlohn Corridor - The Capture Of Iserlohn Fortress (Part Ii)
  • 1.10m
  • Fujisaki Ryu, Tanaka Yoshiki (田中芳樹)

Five hundred years ago, Rudolf von Goldenbaum united the disparate governments of humankind and established a mighty human empire, a tribute to his own greatness that stretched across the galaxy. Demanding loyalty and discipline, Rudolf created an order designed to long outlast his own rule; but all human works fade in time. Today, the decaying empire faces the threat of the Free Planets Alliance, and military leaders on both sides jockey for power in the face of a seemingly inevitable conflict. On the side of the empire, the young general Reinhard von Lohengramm sees war as opportunity, and the empire as soft clay ready for his own sculpting. On the side of the alliance, would-be historian Yang Wen-li would like nothing better than to live out his days in peace - but times of war have little use for men who waste their days studying the mistakes of the past. Circumstances will make heroes and villains of both these men, as they write new history one blood-splattered page at a time.

4.74

Itai No Wa Iya Nanode Bougyo-Ryoku Ni Kyokufuri Shitai To Omoimasu

Chapter 50
  • 21.20m
  • Yuumikan

Honjou Kaede was invited by her 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!

4.11

The Beastly Count After Dark

Chapter 40
  • 71.60k
  • Jeongdeun

Violetta, striving to support her sister after losing their parents, encounters Theobald, an enigmatic aristocrat who irrevocably alters her life. Taking on the role as Theobald's maid, Violetta navigates treacherous waters filled with political intrigue and forbidden desires. As Violetta and Theobald's relationship deepens amidst a backdrop of betrayal and manipulation, Violetta grapples with her conflicting loyalties and the moral ambiguity of her role as both confidante and pa** in a dangerous game.The Night With the Count / At Night, the Count / /

5

Silent Mobius

Vol.4 Chapter 12: Labyrinth (Black & White Version)
  • 139.60k
  • Asamiya Kia

From Viz: In the 21st century, just when the human race needs new heroes, the Lucifer Hawks enter Earth's dimension. The members of the A.M.P., six young women with incredible powers, are set to defend the human race against these monstrous entities from another world.

4.37

Kimi No Koto Tabeteii?

Vol.2 Chapter 9: Mogu Wants To Be Human
  • 0.99m
  • Noshime Nao

I eat the same things at the same time. Your protagonist Omi Sorasaki is a high school student who's a devotee to the ordinary. But one day, a mysterious and beautiful girl transfers over and says to him "I have something to say to you alone after school." But what happens after is only just the first wave of an assault on all that is ordinary!

4.78

Battle Angel Alita

Vol.9 Chapter 53: Epilogue
  • 5m
  • Kishiro Yukito

Alita is a powerful cyborg with a soft heart and a mysterious past. Her second lease on life isn't easy: her heart is broken, she gains and loses friends to the cruel world of the Scrapyard far below the Utopian city of Tiphares, and she serves many masters in her quest to protect the innocent and create a new life for herself.

4.28

Blunt Type Ogre Girl’s Way To Live Streaming

Chapter 15
  • 38.40k
  • Hakoiri Hebineko

Futayado Nanako() calling herself a part time warrior, though all the places she worked at got bankrupt, now has too much time on her hands. And to that opportunity, she was invited by a very close friend of hers, a pro gamer and a live streamer, and decided to do the world's first VRMMO with a live stream function WorldLive-ONLINE. And so, a real cheat girl who has extraordinary strength (21 yrs old) carries a blunt weapon and rampages through the VR world, a bludgeoning refreshing story where the viewers tremble in fear!

4.69

Black Clover

Chapter 376
  • 146.80m

From MangaHelpers: Aster and Yuno were abandoned together at the same church, and have been inseparable since. As children, they promised that they would compete against each other to see who would become the next sorcerous emperor. However, as they grew up, some differences between them became plain. Yuno was a genius with magic, with amazing power and control, while Aster could not use magic at all, and tried to make up for his lack by training physically. When they received their grimoires at age 15, Yuno got a spectacular book with a four-leaf-clover (most people receive a three-leaf-clover), while Aster received nothing at all. However, when Yuno was threatened, the truth about Aster's power was revealed-- he received a five-leaf-clover grimoire, a 'black clover' book of anti-magic. Now the two friends are heading out in the world, both seeking the same goal! +

4.76

Charlotte

Vol.6 Chapter 37
  • 5.50m
  • Maeda Jun

Very few adolescent boys and girls have an onset of special abilities. Yuu Otosaka uses his ability unbeknownst to others in order to lead a satisfying school life. And then, a girl named Nao Tomori suddenly appears before him. Their encounter reveals the destiny for wielders of special abilities.