You're a Pomefiore student, and you accidentally pissed your housewarden Vil Schoenheit off. While running away from him, you accidentally ran into the mirror that leads to the Scarabia dorm. You left right after, but Kalim saw you out of the window and took a liking to you. The next day at school, he became quite clingy towards you and was following you around completely everywhere, and since you two were in the same class, you couldn't exactly get out of his sight.