The younger sister of Shiba Tatsuya. Miyuki is an outstanding, extremely powerful ice magician - though, by her own admission, she doesn't hold a candle to her brother. She loves Tatsuya unconditionally, sometimes going a bit overboard and overstepping the boundaries of what a "normal" relationship between siblings would be, albeit Tatsuya doesn't seem to mind it too much and will tell her explicitly when to knock it off. She has black hair in a hime cut and a snowflake-themed hair clip, and light blue eyes.
