A romantic drama series based on the novel of the same name by renowned author Nguyễn Nhật Ánh. The story revolves around the lives of two high school students, Hoài An and Quan. Hoài An is a smart, innocent girl who falls in love with Quan, a handsome and mysterious young man. Despite their differences, they gradually develop a deep connection, and their relationship becomes a symbol of pure and innocent love. The show has gained critical acclaim for its sensitive portrayal of young love and has made a significant cultural impact in Vietnam.