As long as the name is written in the notebook, it will definitely die, and there is no way to eliminate it.

When writing a name, you must have the look of that person in your mind, otherwise it will have no effect; So people with the same name will not be killed.

People who write nothing but their names will die of heart paralysis in 40 seconds. You can write the cause of death within 40 seconds after writing the name; After writing down the cause of death, the user has 6 minutes and 40 seconds (400 seconds) to write down the detailed cause of death.

Even if death dies, the notebook left in the human world or the dead world is still valid.

After writing down the cause of death or death status, you can control the person's actions before death within 23 days (that is, you must die on the 24th day).

It is also effective to write the cause of death or death status first, and then write the name. The maximum validity period of the human world is about 19 days (that is, it will expire after 20 days). As long as the cause of death is within the ability of the deceased, any way of death can be effective; Otherwise, the cause of death is heart paralysis. Notes torn from death notes also have the effect of death notes. There is no limit to the writing tools of notebooks, and writing with blood and cosmetics is also effective. Humans who have killed others with the death note will neither go to heaven nor go to hell. After giving up the ownership of the Death Note, deadeyes will disappear. When the ownership is regained, deadeyes will not be restored. If the death of the person whose name is written involves another person, the user will die if he writes down the name of the person involved. Users can use the death note to control their behavior before death, but they can't do anything beyond the ability of the deceased, such as providing information that the deceased himself doesn't know.

Then you can sign a contract with death and exchange half your life for the ability to see the other person's name directly.

Interpretation of ownership:

Once you come into contact with the death note, you can feel the death who guards the note. If the notebook has no owner, the person who touches the notebook obtains the ownership of the notebook. If the death note is stolen and the person who stole the note kills the original owner, the ownership will be transferred to the person who stole the note. People who give up the ownership of the notebook after use will lose the memory of the death note. However, this does not mean that all the memories during holding the death note disappear, but all the memories related to the death note disappear. The person who gives up the ownership of the notebook after using it will recover the memory of the death note after touching it again, but if he is not the owner of the note, he will only remember it when touching it and forget it after putting it down. Touching the notebook paper will not restore the memory, but it can sense the death of the person who owns the notebook. If a human with two or more notebooks gives up one of them, he will never feel the death of the notebook again. But as long as there is one in hand, the memory of all notebooks will not disappear. Humans who have never killed anyone with a notebook, even if they give up their ownership, the relevant memories still exist, but they can't perceive the death of that notebook afterwards. If it is not found within 30 days after it is lost, the ownership will be automatically cancelled.

Invalid object:

Death; People born less than 780 days; Thinking of the same person, but mistyping his/her name four times (but if everyone mistyped his/her name four times on purpose in the death note to avoid his/her death, then everyone will die, and the death note is still valid for that person. ); 1population over 24 years old; People whose remaining life is less than 12 minutes; Written in the death note first, if the time of death has been determined, the content written later is invalid; When two death notes write the name of the same person at the same time, the difference is 0.06 seconds, thinking about the appearance of the same person, both sides are invalid; The cause of death is unreasonable (the person whose name is written will die of heart paralysis instead. ); People who have never met him.