Fed up with their unending rowdy and scandalous getaways, it only took one rebellious night for Taeyeon and her notorious gang to be sentenced to a summer community service that they never thought will change their perspectives in life forever.      

Kang Seulgi always gets what she wants, from expensive and luxurious things to girlfriends. She can easily charmed any girl she sets her eyes to, well all except the new transferee student, Irene Bae, who hated Seulgi's guts the first time they met.