Cinderella and Four Knights

Eun Ha-Won, a college student with aspirations of becoming a veterinarian, is a cheerful young woman who feels alone at home. She is distanced from her family, living with her father, stepmother, and stepsister following her mother’s tragic death in a car accident. One day, she assists an enigmatic elderly man who offers her the opportunity to reside in a mansion and follow her dream of becoming a veterinarian. Accepting his offer, she moves into the mansion, where she shares her new home with three cousins—Kang Ji-Woon, Kang Hyun-Min, Kang Seo-Woo—and their bodyguard, Lee Yoon-Sung.