Umiiro Kyoushikyoku -Umiiro Rhapsody-

It was a mermaid who saved the drowning prince, who despised his life in the castle.

The prince wanted nothing more but to meet this mermaid again, however he was unsure how to travel to the world of mermaids. He decided to visit the wizard in the forest, who was rumored to know how to travel there.

What the wizard asked for in return was... a mermaid egg.