This book depicts a child who seemingly fails at everything. He is timid and clumsy, not good at sports and hurts himself often. He often doubts his own abilities. With some encouragement, he slowly worked towards his own goal of creating a kite for a competition. In the process, he gained confidence and affirmations from his family.

书中的主人公是一个似乎什么事都做不好的孩子，他胆小、笨手笨脚、不擅长运动、经常受伤，不光被姐姐们嘲笑，连自己也对自己充满怀疑。一次偶然观看火箭发射后，也有了自己的志向。自己动手做一个火箭造型的风筝参加比赛，虽然中间有波折，但出乎意料的获奖让小主人公有了自信，也得到了全家的肯定。