Baikinsennin informs Baikinman of a magical vase called “Mekoisu no Tsubo” that could grant him the power to destroy Anpanman. At the same time, Yaada-hime, the princess of the ruined kingdom Yaada‑koku, seeks the vase to restore her realm to its former glory. When Anpanman joins forces with her, a frantic chase ensues as both sides scramble to seize the vase.