50 years after the war with aliens. Sumire Ichigaya is 18 years old. To pay off her debts, she works for a company that exterminates... more>> space pests. One day, Sumire's daily life changes drastically when she is kidnapped by a UFO! The voice of someone in her head. Space vermin attacking and even a military company is after her. <<less

On an Earth rampant with malevolent aliens, a mysterious young boy and a stern old man cross paths in a curious twist of fate...In a universe where magic reigns supreme as the ultimate form of military might, their epic adventure begins!... more>>

(Source: MANGA Plus) <<less

A high school boy who's living a relaxed life in the countryside has a difficult time dealing with people but can befriend any animal instead. One day a cat-eared invader from space comes & demands to be satisfied otherwise she will destroy the planet!... more>>

(Manga Mogura) <<less

Adapts the same story as the video game based ONA with the same name but with significant alterations to the story and events.

Mankind struggles to rebuild after a nuclear explosion. In the midst of the wastelands, there is a small pet shop called The Willows.

Souya is a sullen salaryman whose days are spent chasing after work deadlines all while still keeping his dream of becoming a manga artist. To him, his one and only support in life is none other than his beloved wife, Yuuka. One day, on his way back home, he was suddenly caught in an accident and before he knew it, an alien had taken hold of his body! Not only that, the evil threat of another alien is closing in on Yuuka too!... more>>

Here comes Souya as "Otto-man", his superpowered husband form, as he jumps in to save his dearest wife! Have a taste of his love for wife and this world! <<less

Several years after the tragic event in 1989, Akira Yuki plots his revenge in taking on the most monstrous nuclear menace known to mankind-Godzilla! However he's not the only one whose targeted the King of Monsters. The intergalactic tyrant SpaceGodzilla has also aimed his sights on Godzilla! Not only that, but the entire world as well!... more>>

Two Godzillas, one earth, who will remain and hold the crown? <<less

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Shibata Youichi is an ordinary high schooler, but one day he runs into a mysterious heroine! The cute girl knows his name, and (as in... more>> a stereotypical anime) she's an alien who needs him to help save her people! Soon enough, Youichi finds out that this situation was too good to be true... The girl, named Kyara, does represent aliens, but her people are actually interested in Japanese manga/anime/game culture. They want to use his home as a base and his brain as a measuring tool of the level of appeal of their heroines! [tethysdust] <<less

during the last war , mo feng decide to suicide and die along with the enemies! but he woke up 8 years go , time... more>> travelled, he now have the initiative to find out method to win the enemy, can he change the human's life? will they find the method? <<less

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Princess Thesia is a runaway alien who has just arrived on Earth while Annie, an extraordinary 17-year-old senior high-school student, is suddenly captured by Oscar,... more>> who takes her to another planet, Shuangxing Country. But because the way back to Earth has been damaged, Annie must wait three more years until she can return. Even after confirming that Annie is not Princess Thesia, many strange things happen around her, causing her to be once again mistaken as Thesia. All while Annie’s fantastic dreamland calls her to its unknown depths. <<less

The earth is in danger and is about to be invaded by aliens. Misao is a gymnast and a scout witnesses one of her amazing... more>> gymnastic routines and asks her if she wants to be a heroine. What did this scout mean by "heroine"? <<less

When the Starry Sky World is attacked by Notraiders and the twelve Star Princesses scatter themselves across the universe, aliens Lala and Prunce and fairy... more>> Fuwa arrive on Earth and meet Hikaru Hoshina. Hikaru, Lala, Elena, Madoka and Yuni trasform into Precures to revive the Star Princesses and fight against the Notraiders. <<less

Hiro is an incredibly unlucky boy beyond imagination. When he thought his series of misfortunes couldn't get any worse, a mysterious muscled man appeared before... more>> him and proclaimed “I AM A GOD” to Satou. From that moment on, Satou knew his life would be nothing like before! <<less

Watanabe, an alien student from 20,000 light-years away, comes to homestay with the Tokino family to gather material for his thesis on Earthling behaviour. He... more>> follows around the various family members asking mostly funny but sometimes profound questions about their work, their loves, their polluted air... When he's not being sent on errands or punched in the face, at least. <<less

The story of a boy who dreams to be the last scholar of the 21st century.

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1. Heart Cooker... more>>

2. Shishunki Seimeitai Vega 0

Vega is an alien who fights to protect Earth from Monsters. One day, she loses her powers and in order to get them back, she constantly asks her friend, Washimine to kiss her.

3-5. Shishunki Seimeitai Vega

6. Sono Onna, Uchuujin ni Tsuki <<less

Hundreds of millions of years ago, highly-advanced beings looking to make a planet for themselves purposefully tampered with Earth's natural processes in order to create multi-cellular life. Watching the planet's evolution closely, they continued to help life evolve further in the hopes of having actual civilization develop. ... more>>

It's now 1996 in Seoul, where Hyesong, a high-school student, struggles with the usual problems of youth. The only unusual thing about him is that he's been having the same apocalyptic nightmare for an entire month; in the dream he is an great fighter and genius tactician who faces off against a seemingly-unbeatable foe.

Are these dreams not really dreams? Does he really have a role to play in the cosmic balance of the universe? And is the new girl in his class really just a normal student?

He-Sung has dreams of the Earth being destroyed by alien invaders! In these dreams he is a motorcycle-riding warrior, the last defense against the alien armada. By his side is a beautiful armor-clad girl with strange powers and futuristic weaponry. But these are just dreams, and they don't mean anything... right? That's what He-Sung thought... until his mystery dream girl appeared as a new student in his school! But if she is real... can the aliens be far behind? <<less

Junior high student Mao Hoshimi is a small and somewhat effeminate but otherwise typical boy. At least he is until he turns into a girl while hitting the baths with his best friend Shunsuke Hidaka!... more>>

But this is the least of his shocks--Mao learns he is actually of alien descent! Because the numbers of his species are so few, Mao learns, its members have the ability to change shape to breed with other species--and also to transform from male to female and from female to male to suit a potential mate.

It seems that, now that Mao is in puberty, he is fated to become a suitable partner for whomsoever he comes in close contact with, be it Tomoko Yokawa, the cute girl he just met, or, to his horror, Shunsuke! <<less

A Boy from an alien planet learns that he is not of that planet. He moves to Earth because of an “immigration project” and now... more>> must learn to live among the humans in the scariest place on Earth, Seoul Korea. <<less

The first story is of an alien boy crashed to Earth and hiding from his pursuers, with a little help from two boys he meets.... more>> The second half is about a boy raised by the creatures of the forest, who act remarkably human… <<less