What if your whole life could change overnight? Lee Mi Young was an ordinary girl-next-door, until a sudden phonecall transformed her into a hidden life of luxuries. Secrets are uncovered when she realises that her father is still alive, despite being told her whole life that he had passed away in a car-accident. Not only was he alive, he was also one of the richest men in the country. When a critical illness befalls her father, she is forced to return to his side. Only, things are definitely complicated when she finds out about his new family. Living alongside her new StepBrother presents its challenges, and life takes a interesting turn when she starts to develop feelings for someone new in her life.