Synopsis
The year is 2049, and elementary school student Sawatari Yuuma has a deep passion for space and astronomy. When his parents bring home a robot named Nanako, he is thrilled at first, only to be let down upon discovering that she is merely a mundane housekeeping unit. But when he eventually attempts to discuss space with her, an unusual event occurs. Nanako's system malfunctions and is hijacked by an entity claiming to be a stranded alien spacecraft! That alien vessel seeks Yuuma's assistance in returning to outer space.
