This series isn't a television series but an OVA series, and a sequel that was release as a different title and was present as a movie instead.
Episode 1: A man living the life of a "junker"—scavenging useful items among ruined cities to survive—enters a derelict city only to be chased by automated anti-personnel machines. He takes refuge in a former department store building and finds that it still has working electricity. On the top floor, the junker is greeted by Yumemi Hoshino, the friendly gynoid attendant of the department store's planetarium. Yumemi treats the junker as a customer and repeatedly implores him to watch a special presentation reserved for the 2,500,000th customer, but the projector is in need of repair. The junker attempts to leave the following day, but he has second thoughts after talking with Yumemi.
Episode 2: The junker returns to the planetarium and begins repairs on the projector. Yumemi tells him that she has been in energy-saving mode for the past 30 years and is only active for one week in a year. Yumemi helps with the repairs by testing spare light bulbs for the projector. The junker brings up the subject of God, and suggests that Yumemi pray to the god of robots for the projector to get fixed sooner. Although Yumemi has no knowledge of a god of robots, she shows the junker a related holographic recording of her talking to the planetarium staff about a heaven for robots. The next day, the junker completes his repairs to the projector.
Episode 3: Yumemi begins the projection, but just as the special presentation is about to start, the power goes out. The junker discovers that the electrical power that had been running to the building has now permanently shut off. However, the junker tells Yumemi to continue the presentation with only her explanations. Following the presentation, the junker goes to leave the planetarium, but Yumemi is concerned over the junker's return home. He tells her he has a car not far from the planetarium, so she offers to escort him.
Episode 4: The junker and Yumemi begin their trek through the ruined city, but are forced to take frequent stops to allow Yumemi's overheated components to cool. They come across a liquor store, and the junker finds a lone unbroken bottle of Scotch whisky inside. Close to the edge of the city, the junker sees a large search and destroy robot. The junker implores Yumemi to leave the city with him, but Yumemi cannot comprehend everything the junker is telling her about the abandoned city. Before he leaves to destroy the robot, the junker tells her to think over his offer and stay put. The junker fires a grenade launcher at the robot, but the grenade misfires, causing the robot to retaliate with a railgun.
Episode 5: The junker and Yumemi begin their trek through the ruined city, but are forced to take frequent stops to allow Yumemi's overheated components to cool. They come across a liquor store, and the junker finds a lone unbroken bottle of Scotch whisky inside. Close to the edge of the city, the junker sees a large search and destroy robot. The junker implores Yumemi to leave the city with him, but Yumemi cannot comprehend everything the junker is telling her about the abandoned city. Before he leaves to destroy the robot, the junker tells her to think over his offer and stay put. The junker fires a grenade launcher at the robot, but the grenade misfires, causing the robot to retaliate with a railgun.
I will not include the summary for the movie but I will try to sum it short in one sentence, and that is the story took place years later and it still tells the narrative of The Junker and how he come to be the man he is in the movie and he teaching the younger generation what he knows about the star. That is about it, I would give the series a solid 9/10 for the series as a whole.