The story revolves around Taiga, who doesn't have memories from further back than two years ago when his parents died in an accident. He lives with his sister, Tsubame, whom he finds out is from outer space...

The astronomical event "Apple Moon" occurs once every 300 years. On that day, Sakuma, while visiting the ocean with his classmate to observe the event, ends up meeting a parasitic alien instead...?

In their daily battle to protect the Earth from alien threats, Nico and Jubei encounter a bizarre extraterrestrial visitor! (Source: MANGA Plus)

This is a story by the author of Kero Kero Chime, and you can tell. The characters look similar, though the plot seems different.Rupika lives on a far off planet called Rakariina and has a growth on her head...

It's new year's! Alien visitor? With a question?? Madness!!

Original Web Manga

Bath x Alien! The solitary bath way of an alien who is addicted to Japanese baths! Inui is a salesman working in the second sales section of Tokiwa Corporation, a toy manufacturer. However, he is actually an...

Minoru meets Sola, a space alien who's come to Earth to find a bride. Since their first encounter, Sola's had his heart set on Minoru as his bride-to-be. Sola's initial advances are sweet, but they gradually...

Note: In the original 7-volume series published by Akita Shoten, three different titles are used, but they are actually all the same series: v1: Uchuu Enjin Goriv2-v3: Uchuu Enjin Gori Tai Spectremanv4-v7...

"I fight only for what I believe in...for no one's sake...only for what's deep in my heart. I sail amongst the stars...people call me: Captain Harlock." Introducing Captain Harlock, the fiercely independent...

A collection of short stories revolving around sci-fi themes: Earth's Final DayKyoko's DreamHappy EndA Tiny Little CometThe Giant Tree, Elkido

This is a story about Earth in the near future, a future where aliens have become commonplace in everyday life. And as soon as college student Shiori turned into an adult, she found out she was Sibyl’s, one of...

Like a typical teenager, there is nothing Tsubaki Ryuuta wants more than to not stand out from the people around him. Unfortunately, on his way to school one day, he is run over by an alien. The alien promptly...

Thanks to deviant sexuality (lolicon, obsession with 2D girls, etc.), the human birth rate has declined, and humanity is headed for extinction. A cute loli girl from outer space, called Muumo, has come to earth...

A whole new meaning to “spaced out.” Nagi, who lives in a faraway village close to the sea, is bored out of her mind and drifts in her last summer holiday before ending high school. One fateful day, she has an...

It is the year 2199. The Gamilans, a hostile alien race, have bombarded the Earth, rendering it virtually uninhabitable and edging humanity to the verge of extinction. Mankind’s last, best hope for survival is...

2199 will be Earth's final year unless the voyage of the space battleship Yamato can succeed! The alien Gamilas have devastated the biosphere, determined to reshape our planet into their own new home. But a...

The story, set in the United Kingdom in 1901, centers on a photographer. In the first chapter, the photographer is on his way to deliver a finished portrait to a client when he encounters a flying object from...