Hyuna a country-side girl. She just lost her mother. She had no choice, but to go live with her dad and step-mothr, whom she resent, in the city. She wanted to take revenge at her family by dating Myungsoo. He was just her tool, but who knew that she would actually fall in love with him?     

Hyuna and her brother lived separately for a couple years until lately, her brother decided that she should move to his school so that he could watch over her. Who knew that would be a beginning to something new?

Hyuna, Myungsoo, and Sunggyu were siblings. STEP Siblings. Hyuna's mother got married to Myungsoo and Sunggyu's father when they were little. One day, Hyuna realized that her feeling to one of her brothers was more of sibling love. She grew to love him more than she should. What happens when he didn't accept her? What happens if he only sees her as a sister?

Junhyung was just an average person, with average brain, average money, and average look. He was dating Hyuna who was one of the most popular girls during high school. She had been living a decent life. She always got what she wanted.  

Breaking news! Kim Hyuna is leaving 4 minute. What will happen ?