Kazumi Hasumi

羽住 一巳, Hasumi-sensei

Ian's father. Has an aura of coldness and slight madness around him, though he genuinely loves his family. Once a famous writer and the favourite son of the literary world, he now works as a Japanese teacher at Ian's and Rin's school. When his wife, Kureha, left him his inspiration for writing disappeared. He told his son Ian that she looked just like a fairy. He fears that his son is too similar to Kureha; so he burned Ian's wings with a candle, claiming that he can't flee like his mother did. (source : wikipedia)