Kim Han Yeol was a normal girl.

At a normal university.

Living a normal life.

Until one day. Her parents died in a car crash.

Leaving HanYeol behind with no relatives to look after her. That's when she found out that she's not their real daughter & instead the daughter of the billionaire named Moon SooGuk.

In desperation of  a roof over her head, she seeks her so-called father. Unexpectantly, her 'daddy' already had a family.

But is he willing to accept her into the family? Now she has to live with her step mother and step brother. Unfortunately, the siblings don't get along well? 

What is HanYeol supposed to do when her life gets turned upside down? Along with her new family, a distant brother who absolutesly hates her to the core, a step-mother who's the exact same as him & a father who seems carefree about his family and instead focuses on work?