Abiko Yu

Японское имя:	我孫子 優/ビコ
Прозвище:	Biko

She is a Magic Tool Artificer, who is able to make magical tools, but cannot use them herself. She is deeply devoted to her teacher, Rio, and was shocked by the revelation that she was a traitor. When she was younger, she disliked Rio until Rio saved her from an experiment gone wrong. Roji first believed she was a boy when she first appeared. She has three apprentices of her own. She hoped that Rio could be saved, and wished to go raspberry picking with her. After the battle had ended, Biko and Rio lived together since Rio had been sentenced to imprisonment within their home.

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