Yo Han is sure that Jung Bo’s is suffering from Fabry disease, and he suggests to Si Young that she should run an enzyme test for the last time. Si Young goes to Kyungwon Hospital again, but Jung Bo is nowhere to be found all of a sudden. Meanwhile, Tae Kyung announces Si Young's comeback to the hospital.
Quand elle en apprend davantage sur ce qui s'est passé trois ans auparavant, Si-young commence à comprendre la philosophie de Yo-han sur la gestion de la douleur.