Yuuouji's best friend. She is very pure at heart and very innocent. She often feels very embarrassed around male students, as she rarely spends time around them, but wants to learn to do so. She is the third most popular girl in the school, and has many admirers who wish to guard her and protect her innocence. If any student attempts to do something of a perverted nature with her, her "guards" will beat that person up. Amakusa has been a victim to several of these beatings, due to his "curse" often requiring him to make perverted decisions.