Geisters: Fractions of the Earth(2001)

Geisters: Fractions of the Earth

A radio-active asteroid nearly destroys the Earth. Knowing it will be hard to survive the aftermath, many of the survivors leave Earth to live their lives in space colonies.

400 years later, the colonists return to Earth to reclaim their planet. Unfortunately, Earth isn't the same as when they left it.

(Source: AnimeNfo)