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The 17-year old protagonist of Guilty Crown. A socially awkward person, Shu is a second year high school student and a member of the school's modern image and video research club. His mother, Haruka, works for Sephirah Genomics, while his late father, Kurosu, an expert on the Apocalypse Virus, died during the "Lost Christmas" incident. Shu's involvement in the series begins when he meets Inori Yuzuriha. After Inori is arrested by the GHQ Anti Bodies, Shu decides to make amends for not helping her earlier by delivering an item called "Void Genome" she was transporting to the leader of Funeral Parlor, Gai Tsutsugami.

Source from Wikipeida