[Machine Translation] A boy is a beautiful mermaid - seeking freedom on the mysterious sea! It was a time when the world was still uncivilized and sailing ships were still sailing the oceans. One of the beautiful and rare "mermaids", Himizu, was kept by his lord as an object of admiration. Then, a pirate named Ikuta robs him. Himizu, now free, boards Ikuta's ship and begins a journey together, but...? The jacket is newly drawn.