A rich orphan girl living on her own and still attending school. She often isolates herself from the outside world since the horrific incident that costs her parents' lives. She's responsible and matured in her own way. She lives in a penthouse, which her late parents left for her after they died in a hit-and-run accident. She's an only daughter, or so she thought she was and had to run her parents' big company when she's ready. With her are only her loyal maid and two pets; a tamed white tiger and a snow wolf.

She never loved another person except for her parental love towards both of her pets and friendly love towards her maid and her only friend, Jung Hye Sun. She instantly reject all the confessions she received and broke the hearts of all the men who had confessed their feelings towards her.

Being bored living alone in a huge place, she decided to rent some of the rooms in her penthouse. But little did she know that 12 good looking boys will rent almost all of her rooms in the penthouse and a chaotic storm will fill the silent sky of her life... And, will she know how to love another person, or more?