Love Alarm

A new app called Joalarm alerts users when someone within 10 meters likes them, but it doesn’t reveal who. Kim Jo-Jo, a smart and cheerful high school student who lost her parents young and now lives with her aunt’s family, avoids using the app. Hwang Sun-Oh, a wealthy but unloved popular student at the same school, discovers his best friend Lee Hye-Young likes Kim Jo-Jo. Curious, Hwang Sun-Oh tests his friend's feelings by kissing Kim Jo-Jo.