Let's Go! Anpanman: Baikinman and Lulun

One day, Baikinman finds a picture book, hears a voice calling for help from inside the book, and is sucked into the book, where he meets the forest fairy Lulun. Lulun, who is too scared to muster up the courage, asks her to defeat the "Sucking Elephant" that is rampaging in the forest.