A member of Shinigami's "Eight Powerful Warriors", who served under him hundreds of years before the series. The only details known about him are that he created Brew, the Book of Eibon, and the other demon tools, and that he wore a large coat and mask that covered him completely. Noah uses his name and he is in possession of the Book of Eibon. In the anime, he aligned with Arachne to search for a form of immortality to cure a lover of a fatal illness, and after failing, he made himself into the key to utilize Brew as penance.
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