You are Detective L are working together on the case to catch the mass murderer Kira. As time went on, you and L learned more and more about Kira and how he works. But what you and L don't know is that Light is Kira and he uses a death note. You and Light Yagami have become close since he has joined the case. But you don't know that he is Kira. And that Light is only on the case so that he doesn't look like a suspect.

At the moment, you, L, and Light are looking at evidence for the case.