Detective Kim Heonju is dismissed from the police force for his role in Yubin's murder. He tells his descendants that he has found the CCTV footage of the meteor shower in Seoul last December. He says that the person who appears naked in the video is trying to return to his ancestor. He explains that they can transport the body's contents to the "netherworld," or inner world, where they can face their own nature. They call this place "the netherworld" because it is the place where they must face their "nature." They can also bring this inner world to their outer world under certain conditions. They can purify the person they are trying to purify, but it will take time.