Edea is one of three character concepts, along with Fujin and Raijin, to have been created before Final Fantasy VIII.
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He shares his name with the Japanese god of thunder, Raijin.
The names of Natsuki's parasites are Fujin and Raijin (named after the Japanese gods of Wind and Thunder).
On May 5, 2005, Raijin lost control of the raijincomics.com domain name to domain squatters.