Mermaid Melody Pichi Pichi Pitch is a shōjo manga and anime series created by Michiko Yokote with artwork by Pink Hanamori. The manga was originally published in the monthly shōjo manga anthology Nakayoshi. There are 32 chapters published (including two special stories) and are compiled into seven volumes issued by Kodansha.
Pichi Pichi Pitch is loosely based upon the old Hans Christian Andersen version of "The Little Mermaid" tale, which is about the mermaid who falls in love with a human boy, and transforms into a human to win his heart.
The anime series was produced by TV Aichi. The first season of which, composed of 52 episodes, was shown on the TV Tokyo Network from April 05, 2003 to March 27, 2004. A second season, entitled Mermaid Melody Pichi Pichi Pitch Pure, lasted for 39 episodes and was aired from April 03 to December 25, 2004.