Mermaid
Characters: a boy, a mermaid, policemen
Plot: The boy saves a fish in the ocean and brought it home, he then began to imagine the fish as a mermaid. However, he got arrested by the police and tried to change what he thinks of the mermaid/fish. The police forced him of what he should be thinking of the mermaid/fish, until one day, could not see the fish as a mermaid anymore. In the end, the boy brings the fish/mermaid back to the ocean.
End: The boy did not let the police or higher person tell him what he should be thinking(if the fish is a mermaid or not) He went with the mermaid in the ocean and live freely in harmony.
Opinion: I think Mr. Tezuka is showing how it's like in 1960 where you can't have your own opinion and how the powerful people dictates what a you should be thinking..