Original Webtoon
Official Simplified Chinese Translation

By the time when Joseun Dynasty was built, people in Hamkyung province suffered from severe poverty and hunger. Rumors have spread that someone in the woods were buying 'life-thread' from people. Sounds like an awful joke but those who got paid for their life thread actually died earlier than their times.
Sully, a fisherman's daughter worries for her little brother for all men in her family died early from sea. Her ears caught the rumor about the 'life-threader'.
"If someone can buy 'life-thread' than someone can sell it, right?"
Hawol is the one who buys 'life-threads' for fragile Dong-ee, the Taoist fairy who became human. Hawol sees Sully and realize Sully's body could save Dong-ee for good. So Hawol offers Sully a deal which she cannot refuse…
(From C&C Revolution Inc.)