Boo Yong Joo was once a celebrated surgeon at the height of his profession in a prestigious hospital. However, he abruptly abandons his career to live in isolation, serving as a local doctor in a small town. He adopts the name “Teacher Kim” and calls himself the “Romantic Doctor.” On the other hand, Kang Dong Joo pursued a medical career to rise above his impoverished upbringing, targeting high-profile patients to attain the success he craves. Yoon Seo Jung is an enthusiastic young surgeon burdened by a past mistake she is determined to overcome. When Dong Joo and Seo Jung encounter the eccentric Teacher Kim, their personal and professional lives are forever transformed.