Overview: Hyewon tells Minwoo that they must break up, but Minwoo is unable to believe her decision is a genuine one. Hyewon refuses to be overshadowed by Eunhye. Jeonga is glad that Hyewon found out about her heart donor but does not alert Minwoo of the fact. Jeongjae is upset when thinking about how hurt Hyewon would've been when she found out the truth. After a medical checkup, the doctor asks Jeongjae whether Hyewon had recently experienced a shock that worsened her heart condition.