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He is the twin brother of Saya Kamijou. His family has served the Shikimori family (Ibuki's family) for generations. He has a wooden, katana-like magic wand, which name is unknown. One of his defining traits is that he has a horrible sense of direction where he even gets lost walking to school with his sister as they manage to get separated constantly. However, if Saya is in any danger, he instantly knows where she is and runs to her in seconds. [Taken from Wikipedia]