Эпизод 6

Bora starts seeing Gun-woo and introduces him to her dad who gives them his blessing. Later, Bora tells Gun-woo that she has met her first love - the ‘big brother' but Gun-woo does not mind. Deuk-gu obtains his mother's forgiveness after much effort. A Math Professor in Bora's university recognises Deuk-gu's talent and gives him individual tuition. Bora attends the ground-breaking ceremony of her father's project in the countryside and cuts her leg during an argument with Deuk-gu. She receives stitches without anaesthesia which she is allergic to and it hurts Deuk-gu. The latter tells Gun-woo about Bora's injury and Gun-woo rushes over. Seeing Gun-woo's concern for Bora, Deuk-gu gives them his blessing. The next day, Seung-ri runs into Gun-woo and reveals how Deuk-gu had met Bora in his college days. Gun-woo suspects that Deuk-gu is in love with Bora. Deuk-gu's college classmate Hong Ji-hye starts her residency at Gun-woo's hospital and meets Deuk-gu whom she has not seen in 8 years...