The "glorious years" in the past could not overcome the despair of sadness, and she was full of panic and felt that the future was far away. When a warm voice told Chen Bairan, "Follow the wind and treat loneliness as freedom." Her eyes lit up, like a traveler who saw a sweet spring in the desert. From then on, she remembered the person she could never forget, and she knew the gap between them. When she left her hometown to go to the ivory tower that people yearned for, she wrote a letter to Shen Chengqing without a sender or departure address, hoping that he could slowly wait for her to grow up and become someone who could be with him, but she was never sure whether she could wait for this feeling... From then on, their story began.