About "Oktapodi"and "Mermaid"

I think "Oktapodi" is a story taken place in Greece and about two octopus (pink and the orange one) getting away from the man.
First, they were loving each other but the man took the pink octopus so the orange octopus went to get her back. They got rid of the driver eventually but then the sea bird captured  the orange octopus and went away.
That was the end of it but after that I think the pink octopus will get him back by attacking the bird and something different will capture them again...

The second story "Mermaid" is taken place in a country not aloud to imagine.The boy couldn't forget the imagination of the mermaid and the government(?) try to make the boy forget about the mermaid.
I didn't get what happened in the end but I think this story is saying that even if nobody believes your imagination, it might come true if you believe in it strongly.