I do not rewatch dramas. But this is worth watching again. the OR scenes and the different roles each attending person, as well as, how important the presence of assistant doctors are in case of emergency is great. I am aware that this is a show and not reality. But I am pretty sure that there is a small bit of reality to it. This almost became educational for me. after watching a few episodes, I researched on the heart, its parts and how it works. The actors, the plot, and production are amazing. Even the way they ended the drama is good. It did not feel rushed. I wish there was a Season 2.