本片描述小淨(喬喬于卉喬)跟子雅(樂樂邱苡晰)兩個小女孩的友情，因為跟蹤美麗的蕙老師(曾珮瑜)而變得親密，但也因為老師不為人知的祕密被揭露而破滅。 Miss Hui, always attired in elaborate dresses, is the object of Hsiao-Jing's juvenile admiration. The only person who knows about Hsiao-Jing's secret is Zhi-Ya, who wants Hsiao-Jing to be her best friend. Zhi-Ya not only offers her dress to Hsiao-Jing as a gift but also shares the untold story of Miss Hui with her. The two girls grow closer as they follow Miss Hui after class together. However, their friendship starts to fall apart when they learn more about Miss Hui's secret...