All Yuan Zhinan has left behind when she passed away is a letter and an invitation to a school reunion. Attending the reunion in lieu of her late elder sister, Zhihua accidentally runs into Yin Chuan, on whom she had a crush in her youth. As old memories are evoked, and correspondences travel through different contexts and times, Zhihua slowly uncovers the intricate story of the trio.
as Yuan Zhihua
as Yin Chuan
as Zhou Wentou
as Saran / Young Zhihua
as Mumu / Young Zhinan
as Young Yin Chuan
as Chen Guizhi
as Ji Hong
as Zhang Chao
as Li Jian
as Tian Guangshu
as Zhou Wentai's Colleague
