Doo Chil asks Dr Heo to save Ddak Sae. Dr. Heo warns him that if he treats him, both Doo Chil and Ddak Sae will die. In the end, Ddak Sae gets beaten to death by his master for getting treated without his permission.

When Dr. Heo comes back to the modern world, he makes up his mind to lead a different life. Despite Yeon Kyung's efforts to cheer him up, he acts cold towards her. He is determined to take advantage of his skills now so that he won't be treated the way he was in Joseon.

Dr. Heo finds Kkot Bun fallen unconscious outside. The thought of losing her reminds him of his late mother, and he desperately asks for Yeon Kyung's help. During a team dinner, Jae Ha questions Dr. Heo's identity. Meanwhile, Ha Ra gets sent to the hospital.