The Death Note is a supernatural notebook owned by the Shinigami, which has the ability to kill anyone whose name is written in it. It grants the user the power to determine the exact time, date and cause of death of any individual. Simply by writing the name of the intended victim and visualizing their face, the user is able to instantly kill that person. The Death Note also contains instructions for how to use it, as well as various rules and limitations that the user must follow in order to successfully manipulate the fates of others.
The rules are:
-The human whose name is written in this note shall die. -This note will not take effect unless the writer has the person's face in their mind when writing his/her name. Therefore, people sharing the same name will not be affected. -If the cause of death is written within the next 40 seconds of writing the person's name, it will happen. -If the cause of death is not specified, the person will simply die of a heart attack. -After writing the cause of death, details of the death should be written in the next 6 minutes and 40 seconds.