A mixed martial arts fighter Joo Hyung Woo gets injured during his match. Yo Han tells Hyung Woo that he needs to be treated right away if he doesn’t want to lose his sight. Many doctors in Seoul Hanse Medical Center oppose Yo Han’s reinstatement, but he comes back to the hospital thanks to Tae Kyung.
Comme les patients affluent au Centre de gestion de la douleur, l'un d'eux attire l'attention de Yo-han par son absence de symptômes. Son Seok-ki rencontre Si-young.
