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The Seventh Holy Scripture is made from the horn of a mystical beast, and is inhabited by the spirit of a young girl sacrificed during its creation. The spirit is named and referred to by Ciel as Seven, though referred to as Nanako (from the word "nana", or "seven", and the suffix -ko which in Japanese culture is used on a female character) by Arihiko.<br /><br />
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The Seventh Holy Scripture is made from the horn of a mystical beast, and is inhabited by the spirit of a young girl sacrificed during its creation. The spirit is named and referred to by Ciel as Seven, though referred to as Nanako (from the word "nana", or "seven", and the suffix -ko which in Japanese culture is used on a female character) by Arihiko.<br /><br />
