Himitsu No Bara Juujidan

From AQUA Scans:
A Poor High-school girl meets a magician!
One day, a suspicious Ikemen appears in front of Saga Honoka, a stingy highschool girl. He continuously tries to persuade Honoka that he is a magician of a secret organization, “Rosen Kreuz”, realist Honoka refuses to believe him. A mean magician and a poor highschool girl; a magical romantic comedy begins!