The ST team at the Tokyo Metropolitan Police Department consists of eccentric members. Some members do not cooperate with others and others do not reveal themselves in front of others. With Samon as the leader of the ST team and young Inspector Tomohisa tasked with managing the team, the ST (Scientific Task Force) attempt to solve the most difficult of cases.

Light Yagami finds the “Death Note,” a notebook with the power to kill, and decides to create a Utopia by killing the world’s criminals, and soon the world’s greatest detective, “L,” is hired to find the mysterious murderer. An all out battle between the two greatest minds on earth begins and the winner will control the world.

Natsumi (Kie Kitano) moves to Tokyo to enter a fine arts university. In Tokyo, Natsumi meets Ryosuke and they soon become a couple. Ryosuke is a good person, but he doesn’t have a job. Every day he just loafs around. To pay for her living expenses, Natsumi begins work at bar. Natsumi and Ryosuke become estranged from each other. They decide to break up. Natsumi’s book is finally published.