The film tells the story of the cute and straightforward Xiao Qiao (played by Tan Songyun) meeting the taciturn Wei Yang (played by Zhong Chuxi). Xiao Qiao's enthusiasm and cheerfulness quickly made them become "best friends" despite their different personalities. The appearance of Xiao Qiao's fiancé Zhao Yan (played by Luo Jin) caused subtle changes in the relationship between the three, and the relationship between the three became a complicated love story. The film is adapted from the novel of the same name by Qingshan (Annie Baby).