Soo Ji, used to getting everything she wants, has to figure out how to improve her grades when her mother suspends her credit card.
Soo Ji continues her crusade to make Ji Na's life miserable.
Ji Na has another run-in with Eun Yeon.
Eun Yeon and Soo Ji team up to get back at Ji Na.
Eun Hee invites Jay and Robin over for dinner.
Shin Ae's stalker becomes more aggressive.
When the money for the class shirts goes missing, Robin is a suspect.
Jay and Ji Na try to clear Robin's name.
Sa Na is jealous of her sister.
Sa Na thinks plastic surgery will solve all her problems.
Rok Hee's best friend returns to town and is jealous of her new friends.
Sa Na tries to find out if Robin likes her. Ha Ni's jealousy intensifies.
Rok Hee's dad makes them work for their school report.
Ahn Sung In frames Ji Na's dad.
Jay offers to help Ji Na study.
Ji Na selects her next target for revenge.
Much to his dismay, Robin has to join a club.
Mi Nam gets caught up in the world of AOA fandom.
Ji Na brings her friends to visit her grandmother.
When Ji Na's friends realize she is missing, they split up and go looking for her.
Ji Na tries to help her parents get back together.
Ji Na's aunt finds love, but it seems too good to be true.
Ji Na deals with the aftermath of an unexpected confession.
After seeing her classmate being bullied, Ji Na decides to take action.