Nana Toshi Monogatari: Hokkyokukai Sensen is a oVA anime that premiered in summer 1994, produced by Studio Junio.

About the production: the story comes from a other, there are 2 episodes of about 29 minutes and its current status is "finished".

Its main genres are drama and sci-fi, with themes such as Military, War, Politics and Ships.

On AniList, Nana Toshi Monogatari: Hokkyokukai Sensen has an average score of 59%, an average score, and appears on 1,421 users' lists.

In 2099, Earth has shifted off its axis and begins to rotate at an angle of 90% to the 20th-century equator. Three years of natural disasters follows, and when things settle down, Earth's ten billion population has died and only two million moon colonists remain. Some return to begin the repopulation of the world in seven new cities and the remaining colonists of the moon fear that their former neighbors might pose a threat and construct a ring of defensive satellites to trap them on the newly repopulated homeworld. (Source: AniDB)

Official synopsis from AniList.