Sore Ike! Anpanman: Yuurei Sen wo Yattsukero!!

Melonpanna and Rollpanna, who are separated sisters, form a bond with a mysterious horse named Marin. Marin reveals to Rollpanna a hidden treasure, which is a shipwreck she brings to the surface. Observing this, Baikinman becomes motivated to construct his own ghost ship with assistance from Dr. Hiyari. Additionally, he devises a plan to corrupt Rollpanna completely, intending to use her as a weapon against Anpanman.