The Mermaid Princess
それいけ！アンパンマン 人魚姫のなみだ
The adventures of a kind-hearted mermaid who saves a captain's daughter from the stormy ocean, despite the Sea-God's warning not to intervene in the affairs of mortals. However when the captain needs her help again, the mermaid princess must choose between following the laws of the ocean and saving her new human friends from a band of pirates and a dangerous island giant.