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.
1994
—
2014
2016
1987
1974
1975
1992
2003
1976
1985
2015
2001
2007
1981
2013
2022