"Inside the deeps of the ocean, live a population of creatures called mermaids. Mermaids are known for having the head and upper body of a female and the tail of a fish. They're often mentioned in fairy tales. Mermaids have always been remainning as legends because most of humans ignore the fact that they exist. Many years ago, mermaids used to go out of the sea and walk on land. But one day, something happened between the two creatures. As a result, mermaids were chassed out. And since that incident, mermaids never dared to go out of the sea."