After reading the entire book, sitting quietly in front of the window and closing my eyes, I seemed to see the inspirational young man running on the road of growth in the book; I seemed to see the young man who bent down to rescue the man who suddenly appeared on the road. The old grandmother, the kind-hearted young man who would rather his precious bicycle be "broken to pieces" than let others be harmed; it seems to see the brave young man who is passionate and brave, never gives up when encountering difficulties, and "breaks out of the wind" regardless of resistance. And he is my favorite protagonist in this book-Dong Dongdong.