Is snail girl a folk story or a fairy tale?

Snail girl is a fairy tale, a folk fairy tale.

Snail girl is a character in a local folk tale in Fuzhou, Fujian Province, which comes from the fifth volume of the Postscript of Finding God.

The story tells that Emperor Tiandi knew that Xie Duan had died since he was a child, and he was very lonely. He felt sorry for him. Seeing that he was thrifty, he sent a fairy snail girl to help him. Luohu, Shehong County, Sichuan Province has also been circulated, and the story is similar.

Locust essence spoiler

Leech essence likes snail girl very much. Seeing that the snail girl and the farmer were so good, she was jealous and decided to take the snail girl away. So she pretended to be a fortune teller and cheated the snail shell from her blind mother-in-law.

With the snail shell, the snail girl was collected by leeches and could not get out of his hole. Farmers and their partners went to the hole of leech essence to save snail girl, but they were discouraged by leech. Later, they thought of a way to sprinkle salt on leech essence. Leech essence is afraid of salt and finally dies in pain.