When a magical horse named Marin befriends Rollpanna, she reveals something extraordinary: a treasure-laden ship resting on the ocean floor. Word spreads fast in the world of Anpanman, and soon Baikinman catches wind of the discovery. Obsessed with claiming the treasure for himself, he enlists Dr. Hiyari to construct a ghost ship, turning it into a floating fortress of mischief and malice. But Baikinman's ambitions extend beyond mere treasure hunting. He hatches a sinister scheme to corrupt Rollpanna from within, believing that if he can flip her allegiance to evil, he'll finally have the power to destroy Anpanman once and for all. As the ghost ship rises from the dark waters, Anpanman and his friends must race against time to stop Baikinman's plan before Rollpanna's heart turns as cold as the sea. This adventure balances whimsy with genuine stakes, blending the cozy charm of the Anpanman universe with creeping dread as villainous schemes unfold. It's lighthearted yet compelling, perfect for viewers who want their fantasy action wrapped in heart.