The EIR System is a medical device used to create blood vessels and nerves for the brain in order to prevent the cells from dying.

It is used by Dr. Gidou when Eve Neuschwanstein's body disintegrated and was left only with a brain. He used it to transplant the part of Adam Blade's brain which contained the Doppelganger fragment into Eve, to allow her to survive and create a body.

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