The reason why I wrote "Transcendental Questions" was because I was moved. I always felt that Jing Bao was a sincere child at that time. His mental age, which was more mature than his real age, did not hinder the fact that he was a child. Zhang Chao, who was also young, cared for Jing Bao in bits and pieces. We couldn't see them in front of the camera. A lot of interactions, but we believe in their mutual feelings, mutual trust and stillness. Many years later, the photo of the two on Weibo brought our thoughts back to that summer many years ago. That summer condensed so many years of blood and sweat, recording their growth and transformation. Let's go back to that summer.