|Japanese name:||不破 愛花|
Spoiler!Despite dating Yoshino, she was actually in love with Mahiro.
It is revealed by Hakase that Aika actually committed suicide and that is the cause of her death. Hakaze traveled back in time and she met Aika before she died.
In chapter 37 it is revealed that Aika was the strongest magician of all. Aika was the Magician of Zetsuen before Hanemura and was more powerful than Hakaze (she easily defeated Hakaze when the latter was trying to prevent her from committing suicide).
Seiyuu: Hanazawa Kana