This city has been dead for over thirty years, abandoned after the biological weapons strike rendered it uninhabitable. A lone man prowls the dead streets, looking for useful loot. He stumbles across something he never expected - a warm greeting.
Hoshino Yumemi is a companion robot working at an abandoned planetarium. It’s been thirty years since her last customer, but she continues to wait. When a customer finally appears, she enlists his help to fix the planetarium so she can show him the stars.