Goo Ha-na, the eldest in her family, took on the role of breadwinner after her adoptive parents' death. She's shouldered numerous responsibilities, knowing nothing about her real parents. Then, Hwang Jin-goo claims someone might be her birth mother. Suddenly, Ha-na becomes an heiress, living a Cinderella-like life as Yoon Yu-jin, Se-young's cousin and enemy. Unbeknownst to her, she's being exploited as a fake daughter by Chairwoman Shin Yeo-jin, who orchestrated this Cinderella Game with Jin-goo's help. When the truth is revealed, Ha-na transforms into an avenger, seeking revenge against those who wronged her and caused her adoptive parents' death.
