It is the year 4088. It has been over one thousand years since the Crisis of Systems (Lost Property), which resulted in the destruction of four planetary systems, leaving only a single inhabitable planet, Zi...

It ain't easy being the savior of Mankind when you're still in high school, but Hoichi Kano will have to make do. Luckily, he has a super-cool integrated gunsuit at his disposal—just the ticket to take on ...

Han Xiao, who boosted accounts for users of the online game Star Ocean, traveled through time via unknown power and landed in the world created by the beta version game. He became an NPC with a player's pane...

Ryotaro is a boy who loves robots and lives out in the country with his three sisters but he's headed to Tokyo for high school. Before leaving, he runs across a humanoid military robot and has a fateful enco...

Paradigm City is the city of amnesia--40 years ago, SOMETHING happened that wiped out the memories of the residents, forcing them to recreate their culture from scattered fragments. In this world only 40 yea...

For 2000 years, a separate race of humanity has lived on the moon. Known as "the Moonrace," their technology is leaps and bounds beyond those that stayed behind on the Earth's surface. Now seeking to return ...

What do you do when you wake up and find yourself inside the very game that you love? What do you do when you realize you that you have not only become an NPC – you have even been thrown back in time to b...

Energy crisis, scarcity of resources, etc. Leads to its only logical conclusion: war between east and west.

"Granma didn't tell' em like that..." Everyone has a favorite hero from their fairy tales, but who's the strongest of them all!? This is a tale of death and rebirth. In order to accomplish their dream, hop...

In 1999, after the discovery of a hypergate on the Moon's surface, occurred on 1972, a war begins between the humans who live on the Earth and those who inmigrated to Mars, resulting on the devastation of Ea...

Pullan Gwen is an engineer framed as a traitor after an energy crisis. In order to prove his innocence, he flees and comes across a mysterious mech. The journey of Pullan Gwen as he goes from place to place ...

The Great Collapse Era. In the near future, civilization has collapsed due to a large-scale disaster and war, and has one foot in the apocalypse. Detective Zoe, a young girl struggling to maintain security, ...

An old apartment building is on fire and an old man is about to jump into it. Shiro, who happens to be passing by, rushes to hold the old man back, but he is unable to overcome the old man's power and is dra...

A side story that takes place in the period between volumes five and six of the original manga.