Reina and Leona

I was fallen in love with Leona when I played Sei Shoujo's visual novel "Discipline - The Record of a Crusade" cause she is such a  bad and cruel girl. Her older sister Reina is the principal of the high  school and both literally rule over the whole school. Leona is only  called "the Devil's Daughter" among her classmates (of course only in  her absence). "Discipline" was besides "Starless" the second best visual  novel that I've ever played. Thank you for the reminder!