This series centers around an app called Love Alarm, which allows users to send a notification to their crush's phone in order to let them know someone nearby has romantic feelings for them. When the handsome and popular student Hwang Sun-oh (Song Kang) arrives at school, his phone is buzzing with notifications from different girls, but he only has eyes for Kim Jo-jo (Kim So-hyun), a pretty and hard-working student that's indifferent to the app. Eventually, the two grow close and begin dating, and Sun-oh's best friend, Lee Hye-yeong (Jung Ga-ram), who's always had a crush on Jo-jo, watches the couple quietly from afar. Jo-jo and Sun-oh's relationship seemed to be going smoothly, but then one day Jo-jo suddenly calls it off, leaving Sun-oh confused about what he did wrong.
Watch "Love Alarm" on Netflix.
