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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 ‘Choi GiSeok’.

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 ‘Choi GiSeok’? <<less

Min, a dedicated thoracic surgeon, has endured countless challenges throughout his life. Despite his struggles, he managed to achieve remarkable success in his field. However, his hard-earned accomplishments are abruptly snatched away when his work is plagiarized, leaving him devastated and disillusioned.... more>>

In a moment of despair, Min's life takes a tragic turn when he is struck by a truck. As he lies on the brink of death, he resigns himself to the belief that everything is lost. Yet, fate has other plans in store for him.

Miraculously, Min finds himself inexplicably transported back in time to the body of his one-year-old self. Confused and disoriented, he grapples with the bewildering reality of being given a second chance at life. Determined to make the most of this extraordinary opportunity, Min embarks on a journey of rediscovery and redemption. <<less