Set in the 1990';s, 'Reply 1997' follows female high high school student Shi-Won, who idolizes boyband H.O.T and her 5 high school friends. The coming-of-age drama also examines the extreme fan culture that emerged in the 1990s when first generation idol groups such as H.O.T. and Sechs Kies took center stage and K-pop was just blossoming