Andersen Douwa: Ningyohime
English name: Hans Christian Anderson's The Little Mermaid
Genres: Fantasy, Romance
Type: Movie, Episodes: 1
Aired: Mar 21, 1975
Studio: Toei Animation
Source: Unknown
Rating: G - All Ages
Synopsis:
Marina, the most beautiful mermaid in the royal Merman family, is curious about the human world. One day, she sees a handsome prince on a boat. Suddenly, a storm comes up, throwing him into the sea. Marina saves her handsome prince and guides him to the shore. Marina falls deeply in love and desperately wants to become a human. Despite the hazards, she is willing to risk it all for love.

(Source: ANN)