Light Yagami is an ordinary student. One day, he discovers a supernatural notebook from a shinigami named Ryuk that grants its user the ability to kill anyone whose name and face they know. The death note awakens his warped sense of justice and genius. He becomes murderer Kira and punishes criminals. L is a well known private detective. L appears in front of Light Yagami. L defines Kira as evil and decides to catch Kira. Then N, who has a beautiful appearance but dangerous existence, appears.