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Quick question, if you trade half of your life for shinigami eyes and it
happens to save your life, would you lose only half of the time you would have
lived, or would you somehow lose half of the life that you would actually live
since the eyes saved your life?

Bad example:

  1. 1 and 2 in a room
  2. 2 has 1's name and is about to write his name down in his Death Note
  3. 1 doesnt have 2's name and can't write his down in his Death Note
  4. 1 would only have about 30 seconds to live
  5. 1 Trades half of his life for Shinigami eyes
  6. 1 Writes 2's name down without him knowing and before he writes 1's name down.

Would 1 have 30(-15) seconds to live, or x(÷2)? And there's always the
possibility of having his full life and only losing 15 seconds, x(-15).


CC BY-SA 3.0
2014-08-19T10:59:48.773
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2016-09-04T05:30:04.400
2016-09-04T05:30:04.400
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death-note
Could a person do the shinigami deal without losing half his lifespan?


There are a few things wrong with your theory:

  1. Death by Death Note doesn't count in the user's lifespan. Even if you have 80 more years to live, if I write your name down now you die 30 seconds later.

  2. A Death Note will not work on someone with 12 minutes or less left to live. According to How to Use: XXIX.

So no, the user would lose half of his original lifespan. The only way to
extend a lifespan is to get a Shinigami to die for you.


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2014-08-19T11:38:21.063
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2015-02-16T15:53:31.273
2015-02-16T15:53:31.273
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Original lifespan has to do with a humans lifespan without any intervening of
a deathnote or death god!

So if someone makes the deal for their eyes they lose half of their remaining
lifespan. (Getting the eyes to kill someone who is about to write your name
down on a deathnote is a situation not counted in your "original lifespan"...


CC BY-SA 3.0
2014-08-19T15:07:53.240
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2014-08-19T15:07:53.240
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If someone wrote their own name in the death note and then did the eye deal
the shinigami will not be able to cut his lifespan as he has already written
his name in one death note before the shinigami


CC BY-SA 3.0
2016-09-04T04:46:45.807
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2016-09-04T04:46:45.807
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