Yoon Bomi is a sophomore at Acube Boarding School. Her parents are rich but she hates them. Ever since she was little, all they ever did give her what they thought she wanted but never what she really wanted, love. After she became distant and started spending all day in her room she began to fail in school. Her parents thought that it would be a great idea to send her to the most expensive private boarding school in Korea to train her to be the heiress to their car company. However she hated that profession, she had dreamed of becoming a dancer and performer. She spent everyday daydreaming in class and whenever class ended she would practice her dancing. It was the same routine everyday, until someone came into her class room, the new girl.

Jung Eunji is a sophomore at Acube. Her parents don't mind what she wants to be when she grows up but scared to disappoint, she picks to go to Acube and learn about Business, planning to open some company. Well, afterwards she realizes the only one that she disapoints is herself. She's easy to read and is a open book. After her roommate arrives, she develops feelings that she has never developed before.

Son Naeun is a super smart, she has skipped a grade and is studying so she can take over her parents' banking company. She has never fallen in love, never had a crush; but when she suddenly develops a crush she tries to cancel out the feelings. Naeun obviously doesn't know how love works. 

Park Chorong has a deep passion for business but her family barely has enough money to send her to school. Her family had just enough money to send her but they are working really hard to keep their apartment and keep paying the rent. She promises to own a company one day and allow her family to live comfortably.