The story of this work tells the story of the little boy who embarked on a journey to find the hometown that his mother never forgets. He got on the green train and dreamed of the famous stories and famous scenic spots in the town on the way. When he arrived at the station, he woke up, and the little boy also arrived in the dream town. The work is colorful and intended to express the boy's good expectations for the town. At the end of the story, although the little boy has just arrived at the station, his dream has shown the audience the beautiful scenery of the town and satisfied the curiosity of the audience.