Growing up as an orphan, Jeong He-Jin didn’t open his heart to anyone. After giving his all to become a cardiothoracic surgeon, he got into an unfortunate accident, after which he woke up not as ‘Jeon He-Jin’ but as ‘Choe Gi-Seok’. And on top of that, he has to using his skills…? The accident changed his fate drastically… Can he become the Greatest Cardiothoracic Surgeon as Choe Gi-Seok?...

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