Dr. Heo leaves everything behind in Joseon and comes back to Haeminseo. Yeon Kyung takes a sick leave to spend time with him. Will Dr. Heo be able to find happiness in Seoul?

With Chun Sool falsely accused, Dr. Heo struggles to clear his name. Chun Sool realizes that everything has been orchestrated by Director Ma and rather than blaming the homeless man, he forgives him. Meanwhile, Dr. Heo makes his mind up to go back to Joseon in order to save the little girl he made a promise with.

Chun Sool refuses to be treated at first, but Yeon Kyung changes his mind. While Yeon Kyung treats her grandfather in Seoul, Dr. Heo treats Yeon Yi in Joseon. Dr. Heo meets Heo Jun and learns about the acupuncture case's secret.