Doctor John - Season 1 Episode 25 The Promise to Try: Part 1
Overview: Seok Ki asks Yo Han how he can understand his patient's pain when he is a CIPA patient who can't feel any pain. Gi Seok opens his eyes, and he can answer Yo Han's question by blinking his eyes. Meanwhile, Eun Jeong exposes Yo Han's secret by writing it on the hospital's bulletin board.