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Sakuya Tsukumo (九十九 朔夜)Chairman of academy Kouyou, Genetic engineer from that institution who takes part in their research. She is also know to be the 《Blaze Diabolica》 because of her grandfather's name 《Blaze Innovator》. She also inherit her grandfather's research about the Lucifer.
(Source: Absolute Duo Wikia)