有一天，細菌人發現了一本圖畫書。他聽到圖畫書裡有個聲音說：「細菌人，愛與勇氣的戰士，來幫助我吧！」然後就被圖畫書捲進去來到沙漠外的大森林裡面，他遇見了森林精靈路倫。路倫最初不敢鼓起勇氣，邀請細菌人幫她打敗在森林中搗亂的吸吸大象。雖然路倫一開始想放棄，但看到細菌人勇敢面對以及永不放棄的精神，給了她勇氣。每當面對吸吸大象強勢攻撃，他們屢次被打敗，在絕望之際，細菌人對路倫說：「去找麵包超人來吧！」麵包超人和細菌人能夠打敗吸吸大象嗎？出發吧！讓我們一起參與一場圖畫書世界的大冒險！

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. Although Lulun is reluctant at first, she gains courage when she sees Baikinman standing up to Suitoruzo, but she is forced to struggle against Suitoruzo's strength. In a desperate situation, Baikinman tells Lulun to call Anpanman, but...