Kaito's cat in Hell, but a tall, beautiful, and busty female (under the alias: Haga-sensei or Ms. Haga) in the human world. She poses as the school nurse in Kaito's high school to keep an eye on him. It appears that she can kiss Kaito to turn him back to his human disguise. Like Kaito, she has involuntarily changed back to her form from Hell and changed back into her human disguise afterward without warning, but why this happens is still unknown. It looks as if she has a somewhat attraction to Kaito. Asakura Taiki and Souya (the vampire) have very obvious feelings for her.