"The music of summer that has gone far away, soars in autumn, seeking its old stronghold." Xia Zhiyin and Qiu Jian would never have imagined that this sentence in "The Collection of Birds" would closely connect them. "Qiujian, you and I are not finished in this life." "Zhiyin, thank you, thank you for appearing in the summer when I was 17 years old." "Qiujian, why do I want to forget you, but don't have the courage." "Zhiyin, do you know? I am very lonely in the United States, and I miss you very much." "Qiujian, I don't think we can go back." "Zhiyin, Zhiyin, Zhiyin, I want to call you this all the time."