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.
1973
2011
2004
2010
2009
1999
2003
2006
2024
—
2023
2020
2007
1981
1983