Excellent series. JI SUNG portrayal of Dr. Cha aka Dr. John was awesome. His ability to portray an individual who feels no pain yet is able to treat patients with empathy and vast medical knowledge is no small feat. I kept googling the medical terms and diagnosis used in the series. Dr. John wasn’t just entertaining but educational. The entire cast was amazing and carried out the plot effortlessly. Loved the soundtrack also. Anyone looking for a series that will inspire, send a message of hope, and redemption should check this series out. I highly recommend it .