A profiler and a prosecutor must uncover the hidden secrets surrounding unique items with supernatural powers and a conspiracy. Kang Gon is a prosecutor full of justice and a warm heart. In order to save his niece Da In, he jumps into a conspiracy surrounding an item having supernatural powers. Kang Gon works with a criminal profiler Shin So Yeong. Adapted from the popular webtoon of the same name, written by Min Hyung and illustrated by Kim Joon Suk.