"I must not get involved with this man... but I want to know this sparkle..." Novelist Jun Maka made a brilliant debut with his novel "The Correct Way to Use a Knife," which was inspired by a real-life murder committed by a minor. A few years have passed, and his output has steadily increased, but he feels empty and unfulfilled every day. Then, one day, a man named Nishi appears before Maka and asks for instruction on "how to write a novel." He criticizes Maka's work and says that he is the culprit behind the crime that Maka used as a model. "I was stabbed and mangled by that novel." A novelist and a murderer are drawn to each other's brilliance and destroy each other. A human mystery begins, intertwining fiction and crime.