Neolithic Girl

 is a Fantasy Webtoon written by JAEAH and art by GARAM HAN; it updates every Tuesday. The original Korean Webtoon premiered on Naver and concluded on December 24, 2019.

There are works that have a universe (Super String Universe) like this series:
 * Westwood Vibrato: Same universe
 * Distant Sky: Same universe
 * Jungle Juice: Same universe
 * Hanlim Gym: Same universe

Synopsis
''What would you do if you could live forever? Suki 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 Jaeshin 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?''