Ryo Asuka was the human alias of the Angel known as Satan. His identity was assumed after his assumed death, thus never physically appearing in the films.


Ryo was a handsome blonde boy with piercing blue eyes.


Ryo was the son of the esteemed archaeologist Professor Asuka. At some point preceding the events of Akira Fudo's transformation, he is killed and his identity is taken over by Satan.

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