Planetarian: Hoshi no Hito

A young scavenger-known as a "Junker"-roams the ruins of a city left deserted after nuclear and biological wars ravaged the world. While exploring, he stumbles upon a service robot in the rooftop planetarium of an old department store. Despite his usual practicality, he decides to help her fix the broken projector, setting in motion a chain of events that alters both their lives. This adaptation blends the original visual novel by Key with additional story elements from the light novel sequel, "Hoshi no Hito," expanding the narrative while staying true to its roots.