Lee Halla is a no ordinary girl in highschool. She is the daughter of one of South Korea's biggest TV entertainment businesses and she is a rookie idol debuting with the group The Ark. Junior year is never easy but it's about to get a lot harder with Halla, when her father finds out she is sneaking around with a boy of a lower status (Jungkook), he sets up an arranged marriage for her. But of course, not only is there boy drama but also girl drama as the queen bee Tzuyu sets her eyes on Halla's secret boyfriend. Will Halla be able to overcome all the obstacles in this story?