Sorao, an ordinary student, meets Mojacko and Donmo, two aliens looking for a companion for a journey to space. He agrees to come with them, and goes on a fun, yet dangerous, adventure through space, and visit...

When an asteroid threatens to hit the Earth, a strategy is adapted to deflect it through the use of a nano black hole. This black hole successfully saves the Earth from the asteroid, but it then destroys the...

Another Legend - Eva is pregnant! What a shock... since she's the only human aboard this spaceship! 150 years ago, the sudden "shrinkage" of the Sun caused the destruction of the Earth, the Moon and Mars. Eva's...

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...

One day boarding school student Takeshi awakes to find himself in another world, one threatened by mysterious invaders. He soon learns that his only chance of returning home is to join forces with a group of...

Rururuko is a human orphan lost in space. She is raised on board a space ship operated by the spacefaring Saurus race, but she dreams of someday returning home to earth. Before she gets there, she and her tiger...

From MangaHelpers: There's been a series of spaceship accidents out around a remote planet, where it seems the ships went out of control. When the two main characters head out in their spaceship (controlled by...

Sci-fi tale of a young girl that who acquires ESP powers.

A sci-fi retelling of Wagner's "Ring of the Nibelungen", starring Captain Harlock. The series was first serialized from 1990 to 1991 in Chuukosha Fan, a used car magazine. A sequel was published for free...

Firiel Dee is a 15-year-old girl who lives with her poor foster parents in the remote mountain highlands of Sera Field. One day, she is invited to go to a ball, only to discover that she might be the heir to...

This is another one-volume series by Reiko Shimizu. There are 3 stories in the book, the futuristic "Noah's Space Ship", sentimental "Robot and Bride", and "Love Symphony".Noah's Space Ship - Junior was the...

The future. One day, one of the expedition member on planet “RED” which environment resembles the earth, Kaneda, encountered a mysterious plant called “Argo”, native to “RED”, in the prohibited “Area 7” inside...

Who wants to be Princess when you've got the entirety of space to explore? Join Runna and her rag-tag crew as they wander through space in search the unknown, raising hell while encountering everything from the...

Searching with you, the theory of love and everything else. Aoi is an office worker who isn't good at interacting with people, but one day, he meets a mysterious person called Q chasing butterflies in the park...

A short, sweet science fiction story

During summer break, a junior highschool student Mitsuharu collides with an unusual creature while speeding on his bicycle. That unusual creature was a genderless alien called Toki who came to Earth for a...

From Manga Art: After Daa! Daa! Daa!, Ruu is now a cheerful youth living in his home, Planet Otto. Then, a confused girl named Miu arrives through a wormhole from Earth. Ruu joins up with her and promises to...

From Stage Storm: Seiko is a normal girl with a tendency for daydreaming, and Yoshito's a fairly sensitive, subdued boy. They've been close friends since grade school, and now that they're in high school...

In a city where most people have been turned into vampires after a UFO incident, a group of boys attempts to survive and fight against the aliens and vampires.

Short hentai stories involving space battles, aliens, angels, demon girls, a married couple spicing up their love life, elves, warriors and witches.

"I am inside a spaceship...outside is deep space. The name of my spaceship-- Spaceship EE." It is 2038 CE. Noshi Hyoda is a 23-year-old office worker facing existential despair. Will she escape her world of...

At the end of the 23rd century, a girl stares at a red star in the sky. Her name happens to be Red Star, born on Mars. The series tells of Red's adventures at the center of the Milky Way. Note: Winner of the...

Stardust Memories is a short story compilation of human beings in the distant future where we have traveled deep into space. Each story describes a moral dilemma that people traveling in space may experience...