Children with multi-directional thinking always seem so out of place in traditional educational environments and are often labeled by teachers and classmates, so they often find school boring. This book tells the story of Xiao J, a maverick child who struggles to survive in the cracks of exam-oriented education. I hope his story can trigger people from all walks of life to think deeply about today's school education, and that "respect, understanding and acceptance" of children is not just an empty talk.