The moral could be that greed often leads to losing everything. The fisher caught a small fish, but the fish pleaded to be let go as it was too small. If the fisher was greedy and didn't listen, he might not get anything in the long run as the small fish was not really valuable at that moment.
The main characters are the fisher and the little fish. The fisher is the one who catches the fish and has to make a decision about what to do with it. The little fish is in a vulnerable position and tries to persuade the fisher to let it go.
The 'little blue fish short story' might be about the adventures of a little blue fish. It could involve its life in the ocean, its interactions with other sea creatures, or perhaps a journey it undertakes. For example, it may face challenges like avoiding predators and finding food.
In 'the little fish short story', the central character is the little fish itself. However, other potential characters could include other fish species. For instance, a group of colorful tropical fish that the little fish admires or is jealous of. There might also be some underwater plants that play a role like providing shelter for the fish, which could be considered as characters in a sense as they are an important part of the little fish's world.
The moral could be that greed doesn't pay. If the fisherman had been satisfied with the small fish he first caught, he would have had something. But because he was greedy and wanted more, he ended up with nothing.
I'm not sure as I haven't read it, but I assume the little fish is one of the main characters. There might also be other fish or sea animals like a big shark that could be a threat, or a friendly turtle that helps the little fish.
The main idea could be about the journey or life of the little fish. Maybe it's about how the little fish faces challenges in its small world, like finding food or avoiding predators.
In 'coco the little fisher story', the central character is Coco. He is likely to be surrounded by a number of other characters. His parents or siblings might be part of the story, waiting for him at home or helping him with the fishing preparations. There could be a friendly shopkeeper in the village where he buys his fishing supplies. And don't forget the fish, the star of his fishing expeditions. Some fish might be more intelligent or difficult to catch, creating interesting interactions with Coco. There could also be other animals like seagulls that might be curious about Coco's activities.