Professor Asuka was a famous archaeologist and the father of Ryo Asuka. He supposedly committed suicide before the beginning of the manga, and so was only seen in flashbacks and a photo with his late wife. It was the professor's notes that opened Ryo's eyes to the truth of the demons and their plan to destroy humanity. The Professor's given name is never revealed within the manga.
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Professor Asuka was a famous archaeologist and the father of Ryo Asuka. He supposedly committed suicide before the beginning of the manga, and so was only seen in flashbacks and a photo with his late wife. It was the professor's notes that opened Ryo's eyes to the truth of the demons and their plan to destroy humanity. The Professor's given name is never revealed within the manga.
