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.

Tae Kyung warns Yo Han not to cause any trouble. Yo Han wants Si Young to stay out of Hyung Woo's case because he doesn't want her to get into trouble too. Si Young encounters Eun Jeong, and Eun Jeong tells Si Young what happened to Yo Han three years ago.