I didn't fully understand the ending of the drama. While I enjoyed it overall, there were too many unnecessary plot points. I kept waiting for the love story between the leads to begin, but it never truly materialized. They both cared deeply for each other, to the point where anyone could see they were in love. Despite this, neither of them ever confessed their feelings. Even at the end, he said many emotional and touching things to her, but he never once told her that he loved her. Both of them were clearly aware of their mutual feelings, yet they never expressed them openly. This left me wondering why there was no romantic or tender scene between them. Instead, much of the drama focused on him trying to find a cure for her illness. In the end, I'm not sure if I would consider it a good drama or not.