While the public is focused on Ha Ru’s recent revelation regarding his brain, Ha Ru helps Mo Ran get to the bottom of her high libido. Surprisingly, Ha Ru’s assumptions are right, and Mo Ran turns out to be a victim of the wrong medication. Now that she knows it wasn't her fault that she and Myung Se went their separate ways, she wishes she could turn back time and go back to how things used to be. (Source: Viu)