Lee Eun Hye is a successful 23 year-old licensed psychiatrist, making her the youngest doctor in her profession. She dedicates herself to help adolescents and young adults struggling with mental illness and behavioral problems. With every patient she sees, Eun Hye has always been able to shed light and happiness into every case. But when the troubled 18 year-old Jeon Jungkook steps into her office, Eun Hye soon realized she is going to face her biggest challenge yet. A clash from her past, mistaken identity and unethical practice may jeopardize Eun Hye's career and ultimately, her life.