In the year 311 of the Orbital Calendar, humanity has migrated to countless colony clusters in space. A space colony girl named Akiha Shishidou encounters a malevolent artificial intelligence named Leopard that has been installed on a colony.
1986
1961
1974
2006
1994
2004
1998
2007
2002
1999
1967
1995
1988
1993
1966
1978
—