Yurika Nijino

She is a Mahou Shoujo who has the ability to detect the presences of other magical users. She literally came crashing down in Koutarou's room to caution him, but ended up getting the boot (because, Koutarou and Sanae were dueling when she interrupted). She is a self-proclaimed Princess of Love and Courage; however, she is very clumsy and ditzy that she would often get rebuffed.

(Source: Anime+)