This work was entered into a special animation competition as part of a PR initiative for a power company, but it was ultimately not adopted. The reason is straightforward: the story’s setting is an exhausted Earth, a context that could not serve as a useful example for a company that relies heavily on the planet’s resources. In the narrative, the protagonist discovers a girl‑robot capable of storing sunlight and converting it into energy, meaning the robot does not depend on a power‑generating company. Moreover, the robot sacrifices herself to protect the established solar‑power generation system in space. The competition’s failure for Tezuka Osamu was only natural, and it is clear t...