A robot waiting thirty years for a customer to show up sounds like the setup for a joke. It isn't. In five episodes, Planetarian dismantles every wall you built to protect yourself from crying at anime. The planetarium isn't the story, it's an excuse for two people to matter to each other before the world ends, and that matters more than survival ever could.
A ruined world stretches beyond the planetarium's walls, but inside, a robot named Yumemi tends to her post with unwavering devotion. For three decades she has waited for a visitor, maintaining the projector and polishing the dome despite knowing almost nobody will come. When a wanderer finally arrives seeking shelter, Yumemi sees her chance. She convinces him to help restore the planetarium's broken systems so she can fulfill her purpose: showing someone the stars. What begins as a simple repair job becomes something deeper. As they work together, the fragile connection between human and machine grows complicated. Yumemi's programming demands she serve, yet her actions suggest something more than code. The wanderer begins to wonder what keeps her going after so long, and whether the stars she dreams of showing him matter more than the present moment they share. Planetarian is quiet and contemplative, drawing power from what remains unsaid. It's a story about purpose, companionship, and the small rebellions we make against loneliness. The few episodes it spans feel complete, intimate, and genuinely moving.