I've Been Looking for a Thousand Years

For failing to give the rabbit's liver to the Dragon King, a snapping turtle, Yu Han-Byeol, was punished by repeated reincarnation with memories of her previous life. In order to escape the endless cycle of reincarnation, she has to accomplish her unfinished duties, but...instead of stealing the rabbit's liver, it's a modern version of The Tale of the Rabbit, where the rabbit's heart is stolen!