A Joseon doctor who specializes in acupuncture accidentally time-travels to modern day Seoul.   At first he is overwhelmed with his new surroundings, but a beautiful surgeon and her father take him in and help him adjust to his new life.  Eager to learn all he can from the advanced techniques of modern medicine, he finds a job at a traditional medical facility in the city.  And as he begins to settle into his new life and build relationships with the people around him in the present, he wonders if he wouldn't be happy staying here and never returning to the past he left behind.  But he is torn between his heart and his sense of responsibility.