Far in the future, the resources of Earth have become insufficient, its ecosystem long ago changed irrevocably by a passing meteor. Humankind has divided into two: the people who have escaped Earth and relocated to the space colony, 'Orbital Arc,' and the others who have remained on Earth in a facility called ‘The Shelter.’ When the people of The Shelter cut all supplies to Orbital Arc, humankind commences a bold experiment to grant one last hope for humanity. A young sword-wielding warrior named Age falls down from orbit to Earth. Accompanied by his floating android, Helvis, he must find the indispensable key to the survival of humankind...

Far in the future, the resources of Earth have become insufficient, its ecosystem long ago changed irrevocably by a passing meteor. Humankind has divided into two: the people who have escaped Earth and relocated to the space colony, 'Orbital Arc,' and the others who have remained on Earth in a facility called ‘The Shelter.’ When the people of The Shelter cut all supplies to Orbital Arc, humankind commences a bold experiment to grant one last hope for humanity. A young sword-wielding warrior named Age falls down from orbit to Earth. Accompanied by his floating android, Helvis, he must find the indispensable key to the survival of humankind...