Anpanman: The Adventure of Happie

Happy, a resident of Dodeka Tree, has trouble making friends due to his perceived weakness. He looks up to Anpanman, a heroic figure known for his bravery and kindness, and asks for lessons to improve himself. However, when Anpanman focuses on helping people rather than battling villains, Happy becomes disillusioned. This gives Baikinman a chance to exploit the situation with the help of Dr. Hiyari's new invention, Gringa, a voracious maggot.