Role introduction: The protagonist Mao Mao is a primary school student who loves aerospace, his mother is an aerospace worker, and his work is very busy. Grandpa is a non-genetic folk. Summary of the story: The short film mainly tells the story of Mao Mao who followed his grandfather to make kites during the summer vacation. He failed repeatedly. Under the frustration and longing for his mother, he gradually became a dream and embarked on a fantasy dream journey. Then, under the infection of my mother's space class and the encouragement and guidance of my grandfather, I understood the importance of persistence and firmly dreamed of the story.