A detective wakes up with amnesia and a dead body beside him.

Not only finding oneself in the middle of an unfamiliar forest is bewildering, but also not knowing how one get, what transpired or having no memory leading up to the event is maddening. Imagine this happening to a cop. As he gathers his wits about him he is also notified that he is the suspect in a slaying. Trying to put the pieces together he is lead to another crime which involved the robbery of a large sum of money. There are two open cases now.—aghaemi

Yusa Kiyoharu from the Tokyo Metropolitan Police Department is a cool-headed detective who is in charge of the investigation front line and will do whatever it takes to achieve his objectives. One day, when he wakes up in a forest, he finds a gun in his right hand, and a dead female detective lying beside him... This woman was his superior. Did he kill her or was he set up by someone? There is a gap of several months in his memory. Yusa's buddies turn enemies overnight and he is pursued as a murder suspect. His only partner is a young boy who was the female detective's only son. Eventually, the case gets linked with the truth of the unsolved 1 billion yen heist.