Fermaus Fora

The genius psychokinesist who is also approved by Queen Alsheyra. In addition to his normal abilities, he can sense Pollutant Beasts as long as he goes outside without any other equipment. As a result, his body is rotting away, he is forced to wear a mask, and he is only able to communicate with psychokinesis or with an electronic voice. He states that humans may find a way to overcome the pollutant if they studied his body. His psychokinesis pins are blue. (Source: Wikipedia)

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Fermaus is actually a woman called Elmaus Fora (エルスマウ・フォーア). Later in the novels she returns to Grendan to start a new life. She undergoes reconstructive surgery and becomes one of the Heavens Blade wielders.