Dr. Han Jinsoo spent his life striving to be upright and virtuous, but all it brought him was misfortune—he was fired, deceived by a conman, and ultimately betrayed and killed by his own professor. Fortunately, a mysterious entity grants him a second chance at life in recognition of his accumulated good deeds.

However, his new beginning is far from ordinary: he awakens as Hua Tuo, the legendary physician of ancient China, during the chaotic Eastern Han Dynasty. Thrust into an era defined by war, instability, and legendary figures, he must survive and practice medicine without the tools or knowledge of modern surgery.

Now, the question is whether a modern doctor reborn in ancient times can endure—and even thrive—as a healer in a world where survival is far more brutal than he ever imagined.