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What would you do if you could live forever? Suk-Hui Kang has lived for over 10,000 years, yet always seems to make the same mistake — she wants to save others from certain death. This time, she chooses to help veterinarian Jae-Shin Lee with his terminal cancer prognosis. But the great clans of Baekje are dead set on finding out the secret to her immortality and healing powers. Will she be able to save her beloved doctor, or will the clans get to her first? (Source: WEBTOONS, edited)