Nahimana's fifth master, who taught her ice magic. He agreed to teach her, if in exchange, she be his lover. During their time together he was very cruel and abusive to her, and this eventually led to her running away. He nearly killed her trying to recapture her, but Kazyu saved her and began teaching her Tech magic. Eventually, Boreas caught up to them, but Nahimana was able to neutralize his power, and trap him in ice and earth.

Boreas is a 3 tailed winged fox.

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