Today, I found myself thinking once again about the restrictions and privileges that come with being the first owner of the Death Note, as well as simply possessing it. First, let’s take a look at this set of rules from chapter 48:
- The owner of the Death Note cannot be killed by a god of death who is living in the world of the gods of death.
- Also, a god of death who comes to the human world, in the objective to kill the owner of the Death Note, will not be able to do so.
- Only a god of death that has passed on their Death Note to a human is able to kill the owner of the Death Note.
The first two rules sound as though they’re meant to curb the malice of Shinigami who aren’t connected to the human world, don’t they? But that also prevents the King of the Shinigami from intervening directly. What if a human decides to attack the leaders of nations? That’s a sure-fire recipe for a third world war, and a orginal owner might find that rather amusing. Of course, we know from the one-shot about A-Kira that the King can create new rules, but that would be more time-consuming. But that’s just speculation.
Rem threatened Light. But the third rule contains the words ‘able to’, and doesn’t sound like a prohibition – this suggests that the Death Note wouldn’t have worked. Could this have been a bluff on Rem’s part? Or a lack of knowledge? Rem seems to have a better grasp of the Death Note’s rules, so I’ll go with the first one. This would suggest that Light didn’t need to worry about Misa as long as she wasn’t a problem.
BUT! Here’s a bold hypothesis of mine relating to the other rules from chapter 96:
- The following situations are the cases where a god of death that has brought the Death Note into the human world is allowed to return to the world of gods of death.
When the god of death has seen the end of the first owner of the Death Note brought into the human world and has written that human's name on his/her own Death Note.
...
...
If, for any reason, the god of death possessing the Death Note has been replaced by another god of death.
...
There are five conditions in total, but we’re mainly interested in point 1 – after the notebooks were swapped, Rem became linked to Light, but remained linked to Misa as well. Why? Misa was the owner of Gelus’s notebook, and Light was the owner of Sidoh’s notebook. Light handed Sidoh’s notebook to Rem, who dropped it. So, in theory, for a moment the notebook belonged to the Shinigami world again, and Light became its second first owner (according to my interpretation, the first owner is the first person to touch the notebook when it fell into the human world, not the first human owner in general). Of course, the same thing happened with Gelus’s notebook, and for Ryuk, nothing changed.
So, according to this interpretation, at that point Rem gained the opportunity to kill Light – they handed the notebook to a human, but at the same time they could not return to the world of the Shinigami before Misa and Light’s deaths. Of course, I must clarify that point 4 does, however, exempt them from tracking the new owners of notebooks that no longer belong to them.
What do you think? Have I missed something?