Jin Kisaragi

'''Jin Kisaragi: was a Major and 4th Thaumaturgist Squadron Commander of the Novus Orbis Librarium, and Ragna and Saya's brother. He is a playable character in the BlazBlue series.'''

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When Jin was a little boy, he was very dependent on his older brother, Ragna, for affection and constantly pestered him to play with him. He saw his sister Saya as an obstacle of getting his brother's attention and constantly bullied her in retaliation. Eventually, Ragna decided to look after the sickly Saya and distanced himself from Jin, thus increasing his jealousy.