This entity or creature was born on another world than the main characters.
Top 20 Alien Manga to read
- 1. Dandadan
- 2. One Punch-Man
- 3. Takopii no Genzai
- 4. Kouchuugun Shikan, Boukensha ni Naru
- 5. Mahou Sensei Negima!
- 6. Drama Queen
- 7. Chong Zu Zhuzai, Wo Wan de Jiushi Tianzai
- 8. Kill The Dragon
- 9. Gantz
- 10. Sundome!! Milky Way
- 11. Down To Earth
- 12. The Delusional Hunter in Another World
- 13. Musou Kouro ~ Tensei Shite, Uchuu Senkan no AI ni Narimashita ~
- 14. BORUTO: Naruto Next Generations
- 15. Terra Formars
- 16. Kiseijuu
- 17. I Became an Evolving Space Monster
- 18. Ottoman
- 19. Sekai no Owari ni Shiba Inu to
- 20. Cheolsureul Guhasio
1. Dandadan

Ghosts, monsters, aliens, teen romance, battles...and the kitchen sink! This series has it all! Takakura, an occult maniac who doesn't believe in ghosts, and Ayase, a girl who doesn't believe in aliens, try to overcome their differences when they encounter the paranormal! This manga is out of this world!
Dandadan is currently publishing . It is also Known as: ダンダダン, Dan Da Dan, DAN DA DAN
2. One Punch-Man

Everything about a young man named Saitama screams "AVERAGE,” from his lifeless expression, to his bald head, to his unimpressive physique. However, this average-looking fellow doesn't have your average problem... He's actually a superhero that's looking for tough opponents! The problem is, every time he finds a promising candidate he beats the snot out of them in one punch. Can Saitama finally find an evil villain strong enough to challenge him? Follow Saitama through his hilarious romps as he searches for new bad guys to challenge!
One-Punch Man is currently publishing . It is also Known as: ワンパンマン, Onepunchman, Onepanman
3. Takopii no Genzai

Takopi travels from his home of Happy Planet to spread happiness across Earth but meets the unsmiling Shizuka upon landing. Her friends at school and home life seem to be the source of her somber expression—and the pure-hearted Takopi is determined to change things for the better! But what truths await him when the curtains rise in this shocking drama?!
Takopi’s Original Sin is finished and has 2 Volumes and 16 Chapters. It is also Known as: タコピーの原罪, Takopy no Genzai, Takopii's original sin
4. Kouchuugun Shikan, Boukensha ni Naru

The spaceship which Imperial Galactic Navy Officer Alan Corinth helmed was shot down by a surprise attack during hyper-space navigation.
Completely due to freak coincidence, Alan became the only one in the ship to survive.
The severely damaged spaceship lost its navigation capabilities and plummeted onto a nearby planet.
Using an escape pod, Alan headed toward the planet alone.
Thus began Alan’s quest for survival on the underdeveloped planet utilizing the symbiotic nanomachines within his body.
Surprisingly, the planet was home to a thriving human civilization whose genetic code closely resembled Alan’s own.
Even while remaining at a loss due to being thrown into a world of swords and magic, he tries to live as best he could together with his newfound comrades.
What would Alan achieve this strange world?
The Sci-fi Fantasy story in a Medieval setting now begins!
The Galactic Navy Officer Becomes an Adventurer is currently publishing . It is also Known as: 航宙軍士官、冒険者になる, Kochugunshikan Boukensha ni Naru, 宇宙军士官,成为冒险者
5. Mahou Sensei Negima!

Negi Springfield, a 10-year-old wizard who recently graduated from Merdiana Magic Academy in Wales, hopes to achieve two things—to find his missing father, who was once known as the Thousand Master, and to become a Magister Magi, someone who helps the everyday world through magic. To reach his latter goal, he is assigned one last task: to teach English at a middle school in Japan.
Much to his surprise and dismay, he not only discovers that his homeroom class consists of 31 girls, but also ends up revealing his true identity as a magician to Asuna Kagurazaka, one of his new students. Negi must now negotiate with the girl and face his most difficult challenge yet—to keep his identity a secret as he tackles magical threats both from within and outside of Mahora Academy, all the while keeping a watchful eye out for his lost father.
Negima! Magister Negi Magi is finished and has 38 Volumes and 355 Chapters. It is also Known as: 魔法先生ネギま!, Magical Teacher Negima!, Negima
6. Drama Queen

After saving the earth, aliens have taken up residence with the humans in Japan. Nomamoto, a factory worker with an abusive alien boss, one day meets Kitami, who tells her his own family was killed by aliens. The two quickly forge a friendship, but one day Kitami does the unthinkable...
Drama Queen is currently publishing . It is also Known as: ドラマクイン, Drama Queen
7. Chong Zu Zhuzai, Wo Wan de Jiushi Tianzai

Having been transported into a world where everyone is a Job-Changer, Jiang Chen awakened the Insect Domination System! The little insects can evolve, attack, and extract talents! Most importantly, they can breed invincible natural disasters!
Overlord of Insects is currently publishing . It is also Known as: 我,虫族主宰, 全民:我虫族主宰,玩的就是天灾, The Zerg Dominator, The King of Insects, Supreme Zerg Lord, Insect Overlord
8. Kill The Dragon

An invasive alien species named "Dragon" invaded Earth. The three-year war ended with the victory of mankind. However, "the enemy we have faced so far is only a spearhead. Now, we humans must prepare for a war that will stake our lives in preparation for their main force."
At the national level, humanity gathers children who have been judged to be psykers and establishes the Ark, a training institution.
"It's the first time you've ever praised a child like that. Aren't you the one who was sulky no matter what kind of genius came?"
"The bosses who give us money are mistaken. Dragon Hunters don't need magical psychic abilities. That's the minimum requirement. What they really need is to keep their hearts in their hearts even in extreme fear and situations. A soldier with a strong mind to put a spear into."
The final battle for the survival of mankind is about to begin.
Kill The Dragon is currently publishing .
9. Gantz

Thought your life was bad? Sometimes, death is worse. There is no salvation, peace, nor god waiting to receive you into their care. But wait, a god? Maybe you are talking about that big black ball stuck in the room with you. Now you are thrown into a game, fighting green aliens and robot monsters for the chance to survive.
When Kei Kurono is killed, he thus finds himself caught in such a game; a test of his skills, morals and will to survive. His life is not his own, his death spat and trampled upon over and over again. What happens if he does not listen? God knows.
A word of warning: Gantz is not for the faint-hearted, but neither is it as simple as it looks. Gore, rape and violence is rampant, as are portrayals of greed, violence, and all the ugliness that one sees in society today.
Gantz is finished and has 37 Volumes and 383 Chapters. It is also Known as: GANTZ, Gantz/Osaka
10. Sundome!! Milky Way

Sakura Yoshitake is a 25-year-old salaryman working for a food production firm. One day he takes the day off to go to his grandma's 88th birthday. While driving home after the party he sees a UFO and crashes. He survives the wreck and finds a terrifying alien standing over him. He passes out and when he comes to, he is in his own bed in his own apartment, covered in bandages. Even more, he finds a beautiful blonde half naked sleeping next to him. When she awakes she tells him she has come to earth to be impregnated by him. However when he touches her, her embarrassment causes her to lose control and she turns back into the terrifying alien he saw before. How will he ever impregnate her if she can't control her embarrassment enough to ever let him touch her?
Sundome!! Milky Way is finished and has 9 Volumes and 60 Chapters. It is also Known as: すんどめ!! ミルキーウェイ, Sundome!! Milky Way
11. Down To Earth

Kade lives his average life alone and undisturbed... until a cute alien girl crashes into his backyard! By opening up his home, will this other worldly girl inadvertently open up his heart?
Down To Earth is currently publishing .
12. The Delusional Hunter in Another World

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I have a secret: my hometown is a distant alien planet.I work tirelessly without pay and endure endless late nights. To escape my miserable job, I fled to the distant planet called "Earth." And I did it as a spirit! But now, I've reincarnated in a starving body! Can this alien, who crash-landed on Earth, adapt without revealing their true identity?
The Delusional Hunter in Another World is currently publishing .
13. Musou Kouro ~ Tensei Shite, Uchuu Senkan no AI ni Narimashita ~

After regaining consciousness, your average high-schooler Asagaya Shin has become an AI for a space battleship. As if that wasn’t enough, the ship has been surrounded by enemies, and he himself has a damaged engine, putting him in a dire situation.The warship commander had already died in combat, and taking the place of the temporary commander is a young girl of the imperial family, who had joined the ship out of courtesy. Shin had tried convincing himself that this was a dream, but being persuaded by the girl, he stands as a battleship.After somehow crushing the enemy at point-blank range, the fleet’s fight is over, and the battle for the fate of the empire has ended in a crushing defeat. Shin gathers up the survivors and plans to escape the battleground, but there’s a large enemy fleet on the route to the empire. He makes a jump deep into the enemy territory on a slim chance, but —Set 10,000 years in the future, a young boy has been turned into an incredibly powerful cheat AI and leads a small fleet to become peerless. There’s romantic comedy, imperial intrigue, ancient weapons, philosophy, and more!
Unparalleled Path ~Reincarnated as the AI for a Space Battleship~ is finished and has 3 Volumes and 15 Chapters. It is also Known as: 無双航路 転生して宇宙戦艦のAIになりました, Space Cruiser Capricorn, 無双航路 転生して宇宙戦艦のAIになりました, Musou Kouro - Tensei Shite Uchuu Senkan no AI ni Narimashita, Musō Kōro - Tensei shite, Uchū Senkan no AI ni Narimashita
14. BORUTO: Naruto Next Generations

Naruto was a young shinobi with an incorrigible knack for mischief. He achieved his dream to become the greatest ninja in the village and his face sits atop the Hokage monument. But this is not his story... A new generation of ninja are ready to take the stage, led by Naruto's own son, Boruto!
Boruto: Naruto Next Generations is finished and has 20 Volumes and 81 Chapters. It is also Known as: BORUTO-ボルト- -NARUTO NEXT GENERATIONS-, BORUTO, BORUTO-ボルト-
15. Terra Formars

With the space program attempting to travel to Mars, 21st century scientists were tasked with warming up the planet so that humans could survive on its surface. They came up with an efficient and cost effective plan of sending cockroaches and mold to the surface so that the mold would absorb the sunlight and the insect corpses would serve as a food source for the mold.
It is now the year 2577 and the first manned ship to Mars has landed on the planet and the six crew members are ready for their mission. But what they find are giant mutated humanoid cockroaches with incredible physical strength. The crew members are easily wiped out, but not before sending a transmission back to Earth. Now, humanity will send elite warriors to exterminate the mutated bugs and claim back Mars.
Terra Formars is currently publishing . It is also Known as: テラフォーマーズ, Terra Formars
16. Kiseijuu

They arrive in silence and darkness. They descend from the skies. They have a hunger for human flesh. They are everywhere. They are parasites, alien creatures who must invade–and take control of–a human host to survive. And once they have infected their victims, they can assume any deadly form they choose: monsters with giant teeth, winged demons, creatures with blades for hands. But most have chosen to conceal their lethal purpose behind ordinary human faces. So no one knows their secret–except an ordinary high school student. Shin is battling for control of his own body against an alien parasite, but can he find a way to warn humanity of the horrors to come?
Parasyte is finished and has 10 Volumes and 64 Chapters. It is also Known as: 寄生獣, Parasite, Parasitic Beasts
17. I Became an Evolving Space Monster

In the vast expanse of space, inside a cargo compartment made of cold metal, I couldn’t help but acknowledge one thing: I had become an antagonistic extraterrestrial life form in an SF survival game.
I Became an Evolving Space Monster is currently publishing . It is also Known as: Eu Me Tornei um Monstro Espacial Evolutivo, Evolución: El Camino Del Monstruo Espacial, I Became an Evolving Space Monster, Jinhwahaneun Ujugoemul-i Doeeossda, Я стал эволюционирующим космическим чудовищем, Evolution: Road to Space Monster
18. Ottoman

Souya is grinding away at his boring days of office work, while holding onto his dream of becoming a manga artist. As he hurries home to his beloved and supporting wife, Yuuka, he suffers an accident, and before he knows it, he's been parasitized by an alien?! What's more, the aliens' evil tentacles are closing in on Yuuka. In order to protect his wife, Souya rushes to her aid as "Ottoman" !
Ottoman is finished and has 5 Volumes and 47 Chapters. It is also Known as: オットマン-OTTOMAN-, Ottoman
19. Sekai no Owari ni Shiba Inu to

Follow the travels of our high-school girl protagonist and her talking Shiba Inu across a post-apocalyptic world.
Roaming the Apocalypse with my Shiba Inu is currently publishing . It is also Known as: 世界の終わりに柴犬と, Sekai no Owari ni Shiba Inu to
20. Cheolsureul Guhasio

A massive asteroid is about to hit earth!
Humanity has failed to stop a giant asteroid from plummeting into Earth, and life as we know it has ended. An ordinary Korean office worker named Cheolsu is somehow given the chance to go back in time and prevent this catastrophe from ever happening. Does he have a chance?
Cheolsu Saves the World is finished and has null Volumes and 69 Chapters. It is also Known as: Regression of Cheolsu