Yeon Jeong has a "strong luck/fate/destiny" that brings others bad luck/misfortune. Her sister therefore ended up drowning at sea and they blame it on Yeon Jeong's curse.
I think it was just an accident or suicide
Not her the other lady. Cause I think she killed the sister or one of the people who died and they kept calling for Yean Jeong, thats how she knows her name, and she feels indebted and wants to take YJ to the tree of desire so she can wish for sumn, or she was hired to kill her
oh shit didnt think of tht... not sure but nice theory tho
BOOMSHAKALAKA!! I called it!!!
Did she kill the sister?