Boredom/Rebirth

An intelligent yet cynical high school student who wants justice in the world.
He discovered a strange, supernatural notebook which is capable of killing anyone who name is written in it.
Go on a secret crusade as he wants to be God of the world he has created by destorying all evil.
To elimated criminals from the world as he plans to achieve this by using the notebook.
Runs into obstacles with the police and a battle of wits with a strange, mystery detective known as L.
To thrawts their efforts and wanting to stop all these killing of criminals.