Hijiri Kanata

Hijiri is a strict teacher at Yukinari Sasaki's high school. She serves as a subordinate for Yukina, whose mission is to observe and eventually kidnap Miharu Sena Kanaka. Hijiri had been obsessed with Miharu since they were both children, and Yukina promises to give Miharu to her in exchange for helping her achieve her goals. However, Hijiri is eventually defeated by Kirie, and forgets about Miharu and begins to obsess over Kirie instead.

(Source: Wikipedia)