Sore Ike! Anpanman: Poppo-chan no Kirakira Christmas

Poppo finds a "star" in the snow! She meets Anpanman and his friends, who are preparing for Christmas, and together they head off to help Santa. But then Baikinman, disguised as Steam Locomotive Man, arrives, steals the presents, and starts wreaking havoc in the town...! Meanwhile, Poppo, who has fallen asleep after drinking milk, notices the mysterious power of the "star"...

(Source: Amazon, translated)